Professor Adrian PETRUŞEL, Ph.D.

Welcome on the personal Web page

1. Personal Data
   
2. Studies
   
3. Prizes
   
4. Membership
   
5. Didactic activities
   
6. Editorial positions
   
7. Research activities
   
8. Papers in International Journals
   
9. Papers in Proceedings of International Conferences
   
10. Papers in Romanian Journals
    
11. Papers in Proceedings of National Conferences
    
12. Conferences and Communications
    
13. Books
    
14. Coordination of Research Programmes
    
15. Didactic and Scientific Travels
    
16. Attended Conferences
    
17. Invited Lectures
    
18. Membership in international grants
    

Personal Data

Studies

• University studies: 1982-1986, Faculty of Mathematics and Computer Science, Babeş-Bolyai University Cluj-Napoca.
• Ph.D. Studies: 1990-1994, Faculty of Mathematics and Computer Science, Babeş-Bolyai University Cluj-Napoca, Ph.D. Thesis: "Fixed point technique in the theory of differential inclusions", Superviser: Professor Ioan A. Rus.

Prizes

• "Babes-Bolyai" University prize in 2002 for the book: I.A. Rus, A. Petrusel, G. Petrusel: Fixed Point Theory 1950-2000 : Romanian Contributions, House of the Book of Science Cluj-Napoca, 2002, 325 pp.
• The distinction "Bologna Professor" - AOSR Student Organization, 2021.
• Part of the 2% list of the most influential scientists in the world, based on the evaluation of Stanford University and SciTech Strategies (2020-2023)

Membership

• Academy of Romanian Scientists (Corresponding Member since 2018)
• Romanian Mathematical Society
• American Mathematical Society
• European Mathematical Society
• Working Group on Generalized Convexity/Monotonicity
• International Society for Mathematical Sciences, Osaka, Japan

Didactic activity

• Differential Equations, Integral Equations and Dynamical Systems
• Partial Differential Equations
• Mathematical Economics
• Dynamic Economics
• Differential Inclusions
• Fixed Point Theory and Applications

Editorial activity

• Editor-in-Chief of the journal "Fixed Point Theory - An International Journal on Fixed Point Theory, Computation and Applications"
• Co-Editor-in-Chief of the journal "Fixed Point Theory and Applications/Fixed Point Theory and Algorithms for Science and Engineering", Springer
• Co-Editor-in-Chief of the journal "Studia Universitatis Babes-Bolyai, Mathematica"
• Associate Editor of the journal "Journal of Function Spaces"
• in the Editorial Board of the journal "Scientiae Mathematicae Japonicae"
• in the Editorial Board of the journal "FILOMAT"
• in the Editorial Board of the journal "Miskolc Math. Notes"
• in the Editorial Board of the journal "Applicable Analysis and Discrete Mathematics"
• in the Editorial Board of the journal "Discrete Dynamics in Nature and Society"
• in the Editorial Board of the journal "Linear and Nonlinear Analysis"
• in the Editorial Board of the journal "The Journal of Nonlinear Sciences and its Applications" (TJNSA)
• in the Editorial Board of the journal "Applied Analysis and Optimization"
• in the Editorial Board of the journal "Journal of Nonlinear and Variational Analysis"
• in the Editorial Board of the journal "Mathematical Analysis and Convex Optimization"
• in the Editorial Board of the journal "Journal of Nonlinear Analysis and Optimization - Theory & Applications"
• in the Editorial Board of the journal "Annals of the Tiberiu Popoviciu Seminar on Functional Equations, Approximation and Convexity"
• in the Editorial Board of the journal "International Journal of Mathematical Sciences"
• in the Editorial Board of the journal "Mathematica" (Cluj)

Research activities

• Fields of Interest: Nonlinear operators and Differential Equations: Fixed Point Theory, Differential and Integral Equations and Inclusions, Dynamical Systems.
• Ph.D. Supervisor in the field: Nonlinear Operators and Differential Equations
  • Ph.D. Thesis: Monica Boriceanu (2009), Petru Tunde Petra (2009), Liliana Guran (2010), Tania Lungu (2010), Ioana Tise (2010), Adriana Nicolae (2011), Filip Darius (2011), Vasile Lazar (2011), Casian Butaci (2012), Ioan Radu Petre (2012), Cristina Urs (2013), Oana Mlesnite (2013), Iulia Coroian (2016), Cristian Alecsa (2019), Adrian Magdas (2020).
    
    Return to the beginning

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    Papers in International Journals

    1. A. Petrusel: On a theorem by Roman Wegrzyk, Demonstratio Math., 29(1996), 637-641.
    2. A. Petrusel: Fixed points for multifunctions on generalized metric spaces with applications to a multivalued Cauchy problem, Comment. Math. Univ. Carolinae, 38(1997), 657-663.
    3. E. Kirr, A. Petrusel: Continuous dependence on parameters of the fixed points set for some set-valued operators, Discuss. Math. - Differential Inclusions, 17(1997), 29-41.
    4. E. Kirr, A. Petrusel: Continuous dependence and fixed points for some multivalued operators, Revue d'Analyse Numerique et de Th. de l'Approximation, 26(1997), 99-101.
    5. A. Petrusel: A topological property of the fixed points set for a class of multivalued operators, Mathematica, 40(63)(1998), 269-275.
    6. A. Petrusel: Multivalued operators and continuous selections, Pure Math. Appl., 9(1998), 165-170.
    7. A. Petrusel: Integral inclusions. fixed point approaches., Ann. Soc. Math. Polon., Commentationes Math., XL(2000), 147-158.
    8. A. Petrusel: On the fixed points set for some contractive multivalued operators, Mathematica, 42(65)(2000), 181-188.
    9. A. Petrusel: Multivalued operators and fixed points, Pure Math. Appl., 11(2000), 361-368.
    10. A. Petrusel: Generalized multivalued contractions, Nonlinear Analysis T. M. A., 47(2001), 649-659.
    11. A. Petrusel, I.A. Rus: Dynamics on $(P_{cp}(X),H_d)$ generated by a finite family of multi-valued operators on $(X,d)$, Math. Moravica, 5(2001), 103-110.
    12. A. Petrusel: Singlevalued and multivalued Meir-Keeler type operators, Revue d'Anal. Num. et de Th. de l'Approx., 30(2001), 75-80.
    13. A. Petrusel, A. Sîntamarian: Single-valued and multi-valued Caristi type operators, Publ. Math. Debrecen, 60(2002), 167-177.
    14. A. Petrusel: On Frigon-Granas type multifunctions, Nonlinear Analysis Forum, 7(2002), 113-121.
    15. A. Petrusel: Dynamic systems, fixed points and fractals, Pure Math. Appl., 13(2002), 275-281.
    16. I.A. Rus, A. Petrusel, A. Sîntamarian: Data dependence of the fixed points set of some multivalued weakly Picard operators, Nonlinear Anal., 52(2003), no. 8, 1947-1959.
    17. B.C. Dhage, U.P. Dolhare, A. Petrusel, Some common fixed point theorems for sequences of nonself multivalued operators in metrically convex metric spaces, Fixed Point Theory, 4(2003), 143-158.
    18. A. Petrusel : Multivalued weakly Picard operators and applications, Scientiae Mathematicae Japonicae, 59(2004), 169-202.
    19. G. Mot, A. Petrusel: Fixed points and game theory, Intern. J. Pure Applied Math., 14(2004), 521-530.
    20. R. Espínola, A. Petrusel: Existence and data dependence of fixed points for multivalued operators on gauge spaces. J. Math. Anal. Appl. 309 (2005), 420-432.
    21. A. Petrusel, G. Petrusel: Selections theorems for multivalued generalized contractions, Math. Moravica, 9(2005), 43-52.
    22. A. Petrusel, I.A. Rus: Fixed point theorems in ordered L-spaces. Proc. Amer. Math. Soc., 134(2006), no. 2, 411-418.
    23. B.C. Dhage, A. Petrusel: The method of upper and lower solutions for perturbed n-th order differential inclusions, Discuss. Math. Differ. Incl. Control Optim., 26(2006), 57-76.
    24. A. Petrusel: Iterated function system of locally contractive operators, Revue d'Analyse Numerique et de Th. de l'Approximation, 33(2004), 215-219.
    25. I.A. Rus, A. Petrusel, M.A. Serban: Weakly Picard operators: equivalent definitions, applications and open problems, Fixed Point Theory, 7(2006), 3-22.
    26. A. Petrusel, G. Petrusel: A note on multivalued Meir-Keeler type operators, Studia Univ. Babes-Bolyai, Mathematica, 51(2006), no. 4, 181-188.
    27. A. Petrusel: Fixed points and integral inclusions, Revue d'Analyse Numerique et de Theorie de l'Approximation, 35(2006), 183-188.
    28. A. Petrusel, I.A. Rus: Fixed point theory of multivalued operators on a set with two metrics, Fixed Point Theory, 8(2007), 97-104.
    29. A. Petrusel, I.A. Rus, J.-C. Yao: Well-posedness in the generalized sense of the fixed point problems for multivalued operators, Taiwanese J. Math., 11(2007), 903-914.
    30. Lu-Chuan Ceng, A. Petrusel, J.-C. Yao: Implicit iteration scheme with perturbed mapping for common fixed points of a finite family of lipschitz pseudocontractive mappings, J. Mathematical Inequalities, 1(2007), 243-258.
    31. R. Espinola, G. Lopez, A. Petrusel: Crossed cartesian product of multivalued operators, Nonlinear Funct. Anal. Appl., 12(2007), No. 4, 563-575.
    32. Lu-Chuan Ceng, A. Petrusel, J.-C. Yao: Strong convergence theorems of averaging iterations of nonexpansive nonself mappings in Banach spaces, Fixed Point Theory, 8(2007), 219-236.
    33. Donal O'Regan, A. Petrusel: Leray-Schauder, Lefschetz and Krasnoselskii fixed point theory in Frechet spaces for general classes of Volterra operators, Fixed Point Theory, 9(2008), No. 2, 492-513.
    34. C. Chifu, A. Petrusel: Multivalued fractals and multivalued generalized contractions, Chaos, Solitons & Fractals, 36(2008), 203-210.
    35. T. Lazar, D. O'Regan, A. Petrusel: Fixed points and homotopy results for Ciric-type multivalued operators on a set with two metrics, Bull. Korean Math. Soc., 45(2008), 67-73.
    36. Donal O'Regan, A. Petrusel: Fixed point theorems for generalized contractions in ordered metric spaces Journal of Mathematical Analysis and Applications, 341(2008), 1241-1252.
    37. A. Petrusel, I.A. Rus: Mathematical contributions of Professor D.V. Ionescu, Notices from the ISMS (Novae Scientiae Mathematicae), January 2008, 1-10, http://www.jams.or.jp/notice/Notices0801.pdf
    38. Lu-Chuan Ceng, A. Petrusel, J.-C. Yao: Weak convergence theorem by a modified extragradient method for nonexpansive mappings and monotone mappings, Fixed Point Theory, 9(2008), 73-87.
    39. G. Petrusel, A. Petrusel: Multivalued contractions of Feng-Liu type in complete gauge spaces, Carpathian J. Math., 24 (2008), No. 3, 392-396.
    40. A. Petrusel: Existence and data dependence for integral equations and inclusions, J. Applied Math., 1(2008), 201-208.
    41. A. Petrusel, J.-C. Yao: Viscosity approximation to common fixed points of families of nonexpansive mappings with generalized contractions mappings, Nonlinear Analysis, 69(2008), 1100-1111.
    42. A. Petrusel, I.A. Rus, M.A. Serban: Fibre Picard operators on gauge spaces and applications, Journal for Analysis and its Applications, 27 (2008), no.4, 399-415.
    43. D. O'Regan, A. Petrusel, T.P. Petru: Fixed point results for Ciric type contractions on a set with two separating gauge structures, Sci. Math. Jpn., 68(2008), no.3, 361-369.
    44. Lu-Chuan Ceng, A. Petrusel, S.Y. Wu: On hybrid proximal-type algorithms in Banach spaces, Taiwanese J. Mathematics, Vol. 12 (2008), No. 8, 2009-2029.
    45. A. Petruşel, I.A. Rus, M.A. Şerban: Fixed points for operators on generalized metric spaces, Cubo 10 (2008), no. 4, 45-66.
    46. Lu-Chuan Ceng, A. Petrusel, C. Lee and M.M. Wong: Two extragradient approximation methods for variational inequalities and fixed point problems of strict pseudo-contractions, Taiwanese J. Math. 13(2009), no. 2A, 607-632.
    47. G. Mot and A. Petrusel: Fixed point theory for a new type of contractive multivalued operators, Nonlinear Anal., 70 (2009), 3371-3377.
    48. A. Petrusel, J.-C. Yao: Viscosity approximations by generalized contractions for resolvents of accretive operators in Banach spaces, Acta Mathematica Sinica, English Series, 25 (2009), No. 4, 553-564.
    49. Lu-Chuan Ceng, A. Petrusel, J.-C. Yao: Strong convergence of modified implicit iterative algorithms with perturbed mappings for continuous pseudocontractive mappings, Applied Mathematics & Computation, 209 (2009), 162-176.
    50. T.A. Lazar, A. Petrusel, N. Shahzad: Fixed points for non-self operators and domain invariance theorems, Nonlinear Anal., 70 (2009), no. 1, 117-125.
    51. A. Petrusel, J.-C. Yao: An extragradient iterative scheme by viscosity approximation methods for fixed point problems and variational inequality problems, Central European Journal of Mathematics, 7(2) (2009), 335-347.
    52. E. Llorens-Fuster, A. Petrusel, J.-C. Yao: Iterated function systems and well-posedness, Chaos, Solitons and Fractals, 41 (2009) 1561-1568.
    53. L.C. Ceng, A. Petrusel, J.C. Yao: Iterative approaches to solving equilibrium problems and fixed point problems of infinitely many nonexpansive mappings, J. Optim. Theory Appl., 143(2009), 37–58.
    54. L. Guran, A. Petruşel: Existence and data dependence for multivalued weakly Ćirić-contractive operators, Acta Univ. Sapientiae Math., 1 (2009), no. 2, 151-159.
    55. M. Boriceanu, A. Petruşel, I.A. Rus: Fixed point theorems for some multivalued generalized contractions in $b$-metric spaces, International J. Math. and Statistics, 6(2010), S10, 65-76.
    56. Lu-Chuan Ceng, S. Huang, A. Petrusel: Generalized projection methods and iterative methods for approximating fixed points of asymptotically weakly suppressive operators, Taiwanese J. Mathematics, Vol. 14(2010), No. 1, 59-80.
    57. A.-D. Filip, A. Petruşel: Fixed point theorems on spaces endowed with vector-valued metrics, Fixed Point Theory and Applications, Volume 2010, Article ID 281381, 15 pages, doi:10.1155/2010/281381.
    58. M. Boriceanu, M. Bota, A. Petruşel: Multivalued fractals in b-metric spaces, Central European Journal of Mathematics, 8(2010), no. 2, 367-377.
    59. M.A. Serban, I.A. Rus, A. Petruşel: A class of abstract Volterra equations, via weakly Picard operators technique, Mathematical Inequalities & Applications, 13(2010), 255-269.
    60. Lu-Chuan Ceng, A. Petrusel, M.M. Wong: Strong convergence theorems by a relaxed extragradient-like scheme, Taiwanese J. Math., 14(2010), no. 4, 1689-1711.
    61. M.-F. Boriceanu Bota, A. Petrusel, I.A. Rus: Fixed point theorems for some multivalued generalized contractions in b-metric space, International Journal of Mathematics and Statistics, 6(2010), 65-76.
    62. Lu-Chuan Ceng, A. Petrusel, M.M. Wong: Strong convergence theorem for a generalized equilibrium problem and a pseudocontractive mapping in a Hilbert space, Taiwanese J. Math., 14(2010), No. 5, 1881-1901.
    63. Lu-Chuan Ceng, A. Petrusel: Krasnoselski-Mann iterations for hierarchical fixed point problems for a finite family of nonself mappings in Banach spaces, J. Optim. Theory Appl., 146(2010), 617-638.
    64. L.-C. Ceng, A. Petruşel, S. Szentesi, J.-C. Yao: Approximation of fixed common points and variational solutions for one-parameter family of Lipschitz pseudocontractions, Fixed Point Theory, 11(2010), No. 2, 203-224.
    65. L.-C. Ceng, A. Petrusel, J.-C. Yao: Iterative Approximation of fixed points for asymptotically strict pseudocontractive type mappings in the intermediate sense, Taiwanese J. Mathematics, 15(2011), No. 2, 587-606.
    66. Lu-Chuan Ceng, A. Petrusel, Mu-Ming Wong, Su-Jane Yu: Strong convergence of implicit viscosity approximation methods for pseudocontractive mappings in Banach spaces, Optimization, 60(2011), No. 6, 659-670.
    67. Adriana Nicolae, Donal O'Regan, Adrian Petrusel: Fixed point theorems for singlevalued and multivalued generalized contractions in metric spaces endowed with a graph, Georgian Math. J., 18(2011), 307-327.
    68. T.P. Petru, A. Petrusel, J.-C. Yao: Ulam-Hyers stability for operatorial equations and inclusions via nonself operators, Taiwanese J. Math., 15(2011), No. 5, 2195-2212.
    69. M. Bota-Boriceanu, A. Petrusel: Ulam-Hyers stability for operatorial equations, Analele Univ. Al.I. Cuza Iasi, 57(2011), 65-74.
    70. L.C. Ceng, A. Petrusel and M.M. Wong: Hybrid viscosity iterative approximation of zeros of m-accretive operators in Banach spaces, Taiwanese J. Math., 15(2011), No. 6, 2459-2481.
    71. D.R. Sahu, A. Petrusel: Strong convergence of iterative methods by strictly pseudocontractive mappings in Banach spaces, Nonlinear Anal., 74(2011), 6012-6023.
    72. L.C. Ceng, A. Petrusel: Relaxed extragradient-like method for general system of generalized mixed equilibria and fixed point problem, Taiwanese J. Math., 16(2012), No. 2, 445-478.
    73. A. Petrusel, G. Petrusel: Multivalued Picard operators, J. Nonlinear Conxex Anal., 13(2012), no. 1, 157-171.
    74. L.C. Ceng, Yen-Cherng Lin, Adrian Petrusel: Hybrid method for designing explicit hierarchical fixed point approach to monotone variational inequalities, Taiwanese J. Math., 16(2012), No. 4, 1531-1555.
    75. L.-C. Ceng, A. Petrusel, J.-C. Yao: Multi-step hybrid iterative method for triple hierarchical variational inequality problem with equilibrium problem constraint, J. Nonlinear Convex Anal., 13(2012), no. 3, 475-502.
    76. O. Mlesnite, A. Petrusel, Existence and Ulam-Hyers stability results for multivalued coincidence problems, FILOMAT, 26(2012), No. 5, 965-976.
    77. W. Sintunavarat, A. Petrusel, P. Kumam: Common coupled fixed point theorems for w-compatible mappings without mixed monotone property, Rend. Circ. Mat. Palermo, 61(2012), no. 3, 361-383.
    78. L.C. Ceng, A. Petrusel, M.M. Wong: Relaxed projection-viscosity approximation method, Taiwanese J. Math., 16(2012), no. 3, 1105-1124.
    79. I.-R. Petre, A. Petrusel: Krasnoselskii's theorem in generalized Banach spaces and applications, Electron. J. Qual. Theory Differ. Equ., 2012, No. 85, 20 pp.
    80. M.A. Alghamdi, A. Petrusel, N. Shahzad: A fixed point theorem for cyclic generalized contractions in metric spaces, Fixed Point Theory and Applications, 2012, Article Number: 122 DOI: 10.1186/1687-1812-2012-122.
    81. M.A. Alghamdi, A. Petrusel, N. Shahzad: Correction: A fixed point theorem for cyclic generalized contractions in metric spaces. Fixed Point Theory and Applications 2012, 2012:122 Fixed Point Theory Appl., 2013, 2013:39, 2 pp.
    82. L.C. Ceng, A. Petrusel, J.-C. Yao: Relaxed extragradient methods with regularization for general system of variational inequalities with constraints of split feasibility and fixed point problems, Abstract and Applied Analysis, 2013, Article Number: 891232 DOI: 10.1155/2013/891232.
    83. D.R. Sahu, A. Petrusel, J.-C. Yao: On fixed points of pointwise Lipschitzian type mappings, Fixed Point Theory, 14(2013), 171-184.
    84. A. Petrusel, I.A. Rus, M.A. Serban: The role of equivalent metrics in fixed point theory, Topol. Meth. Nonlinear Anal., 41(2013), No. 1, 85-112.
    85. A. Petrusel, I.A. Rus: An abstract point of view on iterative approximation schemes of fixed points for multivalued operators, J. Nonlinear Sci. Appl., 6(2013), No. 2, 97-107.
    86. A. Amini-Harandi, A. Petrusel: A fixed point theorem by altering distance technique in complete metric spaces. Miskolc Math. Notes 14 (2013), no. 1, 11–17.
    87. A. Petrusel, G. Petrusel, C. Urs: Vector-valued metrics, fixed points and coupled fixed points for nonlinear operators. Fixed Point Theory Appl. 2013, no. 1, 2013:218.
    88. L.-C. Ceng, M.-M. Wong, A. Petrusel, J.-C. Yao: Relaxed implicit extragradient-like methods for finding minimum-norm solutions of the split feasibility problem, Fixed Point Theory, 14(2013), No. 2, 327-344.
    89. A. Amini-Harandi, M. Fakhar, H. R. Hajisharifi, A. Petrusel: Fixed point theorems for multi-valued contractions in distance spaces, Revista de la Real Academia de Ciencias Exactas, Fisicas y Naturales. Serie A. Matematicas, 108(2014), 721-732.
    90. A. Petrusel, I.A. Rus, M.A. Serban: Basic problems of the metric fixed point theory and the relevance of a metric fixed point theorem for multivalued operators, J. Nonlinear Convex Analysis, 15(2014), No.3, 493-513.
    91. C. Chifu, A. Petrusel: Ciric-type delta-contractions in metric spaces endowed with a graph, J. Ineq. Appl., Article Number: 77, 2014, 1-11.
    92. L.C. Ceng, A. Petrusel, M.M. Wong, J.-C. Yao: Hybrid algorithms for solving variational inequalities, variational inclusions, mixed equilibria, and fixed point problems, Abstract Appl. Anal., Article Number: 208717, 2014.
    93. L.C. Ceng, A. Petrusel and J.-C. Yao: Composite viscosity approximation methods for equilibrium problem, variational inequality and common fixed points, J. Nonlinear Convex Analysis, 15(2014), no.2, 219-240.
    94. S. Abbas, M. Benchohra, A. Petrusel: Ulam stability for partial fractional differential inclusions via Picard operators theory, Electronic J. Qualitative Th. Differ. Eq., 51(2014), 1-13.
    95. M. Jleli, E. Karapinar, A. Petrusel, B. Samet, C. Vetro: Optimization problems via best proximity point analysis, Abstract and Applied Analysis, Article Number: 178040, DOI: 10.1155/2014/178040, 2014.
    96. J.-C. Yao, A. Latif, C. Li, A. Petrusel: Variational analysis, optimization, and fixed point theory, Abstract and Applied Analysis, Volume 2015, 19 January 2015, Article number 312823.
    97. A. Petrusel, D.R. Sahu, V. Sagar Vidya: An extragradient iterative scheme for common fixed point problems and variational inequality problems with applications, Analele St. Univ. Ovidius Constanta, Seria Matematica, 23(2015), No. 1, 247-266.
    98. L.-C. Ceng, Q. H. Ansari, A. Petrusel, J.-C. Yao: Approximation methods for triple hierarchical variational inequalities (I), Fixed Point Theory 16(2015), no. 1, 67-90.
    99. A.D. Filip, A. Petrusel: Fixed point theorems for operators in generalized Kasahara spaces, Revista de la Real Academia de Ciencias Exactas, Fisicas y Naturales. Serie A. Matematicas, 109(2015), 15-26.
    100. E. Karapinar, W.S. Du, P. Kumam, A. Petrusel, S. Romaguera: Existence and uniqueness of fixed points in various abstract spaces and related results, Abstract Anal. Appl., Vol. 2015, Article ID 123984.
    101. A. Petrusel, I.A. Rus, M.A. Serban: Fixed points, fixed sets and iterated multifunction systems for nonself multivalued operators, Set-Valued Var. Anal. 23(2015), 223-237.
    102. A. Petrusel, G. Petrusel: Nonlinear dynamics, fixed points and coupled fixed points in generalized gauge spaces with applications to a system of integral equations, Discrete Dynamics in Nature and Society, Volume 2015 (2015), Article ID 143510, 10 pages, http://dx.doi.org/10.1155/2015/143510
    103. A. Petrusel, B. Satco: Semilinear evolution equations with distributed measures, Fixed Point Theory and Applications 2015, 2015:145 doi:10.1186/s13663-015-0392-4
    104. L.-C. Ceng, Q.H. Ansari, A. Petrusel, J.-C. Yao: Approximation methods for triple hierarchical variational inequalities (II), Fixed Point Theory 16(2015), no. 2, 237-260.
    105. A. Petrusel, A. Soos: Self-similar sets and fractals generated by Ciric type operators, J. Nonlinear Sci. Appl., 8 (2015), 1048-1058.
    106. A. Amini-Harandi, A. Petrusel: An endpoint theorem in generalized L-spaces with applications, J. Nonlinear Convex Anal., 16(2015), no.2, 265-271.
    107. O. Mlesnite, A. Petrusel: Metric regularity and Ulam-Hyers stability results for coincidence problems with multivalued operators, J. Nonlinear Convex Anal. 16 (2015), no. 7, 1397-1413.
    108. M.-F. Bota, A. Petrusel, G. Petrusel, B. Samet: Coupled fixed point theorems for single-valued operators in b-metric spaces, Fixed Point Theory Appl. 2015, 2015:231, doi:10.1186/s13663-015-0482-3.
    109. C.G. Alizadeh, S.M. Vaezpour, A. Petrusel: Generalized equilibrium problems in abstract convex spaces, Miskolc Math. Notes 16 (2015), no. 2, 647-655.
    110. Y. Su, A. Petrusel, J.-C. Yao: Multivariate fixed point theorems for contractions and nonexpansive mappings with applications, Fixed Point Theory Appl. 2016, 2016:9, 19 pp.
    111. N. Khodabakhshi, A. Petrusel: An existence result for a class of nonlinear Volterra functional integral equations, Commun. Nonlinear Anal., 1 (2016), 1--7.
    112. A. Petrusel, G. Petrusel, B. Samet: A study of the coupled fixed point problem for operators satisfying a max-symmetric condition in b-metric spaces with applications to a boundary value problem, Miskolc Math. Notes, 17 (2016), no. 1, 501-516.
    113. A. Petrusel, G. Petrusel, B. Samet, J.-C. Yao: Coupled fixed point theorems for symmetric multi-valued contractions in b-metric space with applications to systems of integral inclusions, J. Nonlinear Convex Anal., 17(2016), No. 7, 1265-1282.
    114. A. Petrusel, G. Petrusel, J.-C. Yao: A study of a system of operator inclusions via a fixed point approach and applications to functional-differential inclusions, Carpathian J. Math., 32 (2016), no. 3, 349-361.
    115. S. Abbas, W. Albarakati, M. Benchohra, A. Petrusel: Existence and Ulam stability results for Hadamard partial fractional integral inclusions via Picard operators, Studia Univ. Babes-Bolyai Math., 61(2016), no.4, 409-420.
    116. A. Petrusel, I.A. Rus, M.A. Serban: Nonexpansive operators as graphic contractions, J. Nonlinear Convex Anal., 17(2016), no. 7, 1409-1415.
    117. A. Petrusel, G. Petrusel, B. Samet, J.-C. Yao: Coupled fixed point theorems for symmetric contractions in b-metric spaces with applications to operator equation systems, Fixed Point Theory, 17(2016), No. 2, 459-478.
    118. A. Petrusel, G. Petrusel, B. Samet, J.-C. Yao: Scalar and vectorial approaches for multi-valued fixed point and multi-valued coupled fixed point problems in b-metric spaces, J. Nonlinear Convex Anal., 17(2016), No. 10, 2049-2061.
    119. S. Abbas, M. Benchohra, A. Petrusel: Ulam stability for Hilfer type fractional differential inclusions wia the weakly Picard operator theory, Fractional Calc. Applied Anal., 20(2017), no. 2, 384-398.
    120. A. Petrusel, G. Petrusel, J.-C. Yao: Fixed point and coincidence point theorems in b-metric spaces with applications, Applicable Anal. and Discrete Math., 11(2017), no. 1, 199-215.
    121. M. Bota, V. Ilea, A. Petrusel: Krasnoselskii's theorem in generalized b-Banach spaces and applications, J. Nonlinear Convex Anal., 18(2017), no. 4, 575--587.
    122. A. Petrusel, G. Petrusel, J.-C. Yao: Contributions to the coupled coincidence point problem in b-metric spaces with applications, Filomat, 31(2017), no. 10, 3173-3180.
    123. A. Petrusel, G. Petrusel: A study of a general system of operator equations in b-metric spaces via the vector approach in fixed point theory, J. Fixed Point Theory Appl., 19(2017), no. 3, 1793--1814.
    124. L. Xie, J. Li, A. Petrusel and J.-C. Yao: Order-clustered fixed point theorems and their applications to Pareto equilibrium problems, Fixed Point Theory, 18(2017), No. 2, 755--772.
    125. V. Joshi, D. Singh, and A. Petrusel: Existence results for integral equations and boundary value problems via fixed point theorems for generalized F-contractions in b-metric-like spaces, J. Function Spaces, Volume 2017 (2017), Article ID 1649864, 14 pages.
    126. N. Van Dung, A. Petrusel: On iterated function systems consisting of Kannan maps, Reich maps, Chatterjea type maps, and related results, J. Fixed Point Theory Appl., 19(2017), 2271-2285.
    127. Q.H. Ansari, J. Balooee, A. Petrusel: Some remarks on regularized multivalued nonconvex equilibrium problems, Miskolc Math. Notes, 18 (2017), No. 2, 573--593.
    128. Cristian Alecsa, A. Petrusel: On some fixed point theorems for multi-valued operators by altering distance technique, J. Nonlinear Variational Anal., 1 (2017), 237-251.
    129. A. Petrusel, G. Petrusel: On Reich' strict fixed point theorem for multi-valued operators in complete metric spaces, J. Nonlinear Var. Anal., 2(2018), No.1, 103--112.
    130. A. Petrusel, A. Soos: Coupled fractals in complete metric spaces, Nonlinear Anal. Modelling and Control, 23(2018), No. 2, 141--158.
    131. A. Petrusel, G. Petrusel, Yi-Bin Xiao, J.-C. Yao: Fixed point theorems for generalized contractions with applications to coupled fixed point theory, J. Nonlinear Convex Anal., 19(2018), no. 1, 71-88.
    132. K. Fallahi, A. Petrusel, G. Soleimani Rad: Fixed point results for pointwise Chatterjea type mappings with respect to a c-distance in cone metric spaces endowed with a graph, U.P.B. Sci. Bull., 80(2018), 47-54.
    133. X. Qin, A. Petrusel, J.-C. Yao: CQ interative algorithms for fixed points of nonexpansive mappings and split feasibility problems in Hilbert spaces, J. Nonlinear Convex Anal., 19(2018), no. 1, 157-165.
    134. L.-C. Ceng, A. Petrusel, J.-C. Yao, Y. Yao: Hybrid viscosity extragradient method for systems of variational inequalities, fixed points of nonexpansive mappings, zero points of accretive operators in Banach spaces, Fixed Point Theory, 19(2018), no.2, 487-502
    135. A. Petrusel, G. Petrusel, J.-C. Yao: Variational analysis concepts in the theory of multi-valued coincidence problems, J. Nonlinear Convex Anal., 19(2018), no. 6, 935--958.
    136. G. Mot, A. Petrusel: On Iseki' strict fixed point theorem, Linear and Nonlinear Anal., 4( 2018), no. 1, 105-115.
    137. J. Brzdek, E. Karapinar, A. Petrusel: A fixed point theorem and the Ulam stability in generalized dq-metric spaces, J. Math. Anal. Appl., Volume: (2018), no.1, 501-520.
    138. Y. Yao, A. Petrusel, M. Postolache: Iterative computation of mixed equilibrium problems and fixed point problems, J. Nonlinear Convex Anal. 19 (2018), no. 12, 2099-2108.
    139. R. Pant, R. Shukla, A. Petrusel: Viscosity approximation methods for generalized multi-valued nonexpansive mappings with applications, Numer. Funct. Anal. Optim. 39 (2018), no. 13, 1374-1406.
    140. A. Petrusel, I.A. Rus: Stability of Picard operators under operator perturbations, Analele Universitatii de Vest, Timisoara, seria Matematica-Informatica, 56(2018), no.2, 3-12.
    141. A. Petrusel: Fixed points vs. coupled fixed points, J. Fixed Point Theory Appl. (2018) 20:150 https://doi.org/10.1007/s11784-018-0630-6.
    142. A. Petrusel: On Nadler's multi-valued contraction principle in complete metric spaces, Ann. Acad. Rom. Sci. Ser. Math. Appl., 10(2018), no. 1, 72-82.
    143. M. Abbas, H. Iqbal, A. Petrusel: Fixed points for multivalued Suzuki type (Theta,R)-contraction mappings with applications, J. Funct. Spaces 2019, Art. ID 9565804, 13 pp.
    144. A. Petrusel, G. Petrusel: Coupled fractal dynamics via Meir-Keeler operators, Chaos Solitons Fractals 122 (2019), 206-212.
    145. A. Petrusel, G. Petrusel, J.-C. Yao: Pseudo-contractivity and metric regularity in fixed point theory, J. Optim. Theory Appl. 180 (2019), no. 1, 5-18.
    146. L.C. Ceng, A. Petrusel, J.-C. Yao, Y. Yao: Systems of variational inequalities with hierarchical variational inequality constraints for Lipschitzian pseudo-contractions, Fixed Point Theory 20(2019), 113-133.
    147. A. Petrusel, G. Petrusel, J.-C. Yao: Coupled fixed points theorems in quasimetric spaces without mixed monotonicity, Carpathian J. Math. 35(2019), no.2, 169-176.
    148. Gh. Morosanu, A. Petrusel: A proximal point algorithm revisited and extended, J. Optim. Theory Appl., 182 (2019), 1120-1129.
    149. A. Petrusel, G. Petrusel, J.-C. Yao: Existence and stability results for a system of operator equations via fixed point theory for nonself orbital contractions, J. Fixed Point Theory 21(2019), no. 3, DOI: 10.1007/s11784-019-0711-1.
    150. A. Petrusel, G. Petrusel, J.-C. Yao: Multi-valued graph contraction principle with applications, Optimization, 69(2020), no. 7-8, 1541-1556.
    151. L.C. Ceng, A. Petrusel, C.-F. Wen, J.-C. Yao, Inertial-like subgradient extragradient methods for variational inequalities and fixed points of asymptotically nonexpansive and strictly pseudocontractive mappings, Mathematics 7(2019) no. 9, Article Number: 860, DOI: 10.3390/math7090860.
    152. A. Petrusel, I.A. Rus, Fixed point theory in terms of a metric and of an order relation, Fixed Point Theory, 20(2019), 601-622.
    153. S. Som, A. Petrusel, H. Garai, L.K. Dey: Some characterizations of Reich and Chatterjea type nonexpansive mappings, J. Fixed Point Theory 21(2019), no. 4, DOI: 10.1007/s11784-019-0731-x.
    154. A. Petrusel: Local fixed point results for graphic contractions, J. Nonlinear Variational Anal. 3(2019), no. 2, 141-148.
    155. A. Petrusel, G. Petrusel: Fixed points, coupled fixed points and best proximity points for cyclic operators, J. Nonlinear Convex Anal., 20(2019), no.8, 1637-1646.
    156. A. Petrusel, G. Petrusel: Some variants of the contraction principle for multi-valued operators, generalizations and applications, J. Nonlinear Convex Anal., 20(2019), no. 10, 2187-2203.
    157. J. Li, A. Petrusel: Extended coupled fixed point problems for set-valued mappings on partially ordered Banach spaces and their applications to systems of Hammerstein integral equations, J. Nonlinear Convex Anal., 20(2019), no. 11, 2321-2333.
    158. Lu-Chuan Ceng, A. Petrusel, Jen-Chih Yao: On Mann viscosity subgradient extragradient algorithms for fixed point problems of finitely many strict pseudocontractions and variational inequalities, Mathematics, 7(2019) no. 10, Article Number: 925.
    159. A. Petrusel, Radu Precup, Marcel-Adrian Serban: On the approximation of fixed points for non-self mappings on metric space, Discrete and Continuous Dynamical Systems-Series B, 25(2020), No. 2, 733-747.
    160. Lu-Chuan Ceng, A. Petrusel, X. Qin, Jen-Chih Yao: A modified inertial subgradient extragradient method for solving pseudomonotone variational inequality and common fixed point problems, Fixed Point Theory, 21(2020), no. 1, 93-108.
    161. E. Karapinar, A. Fulga, A. Petrusel: On Istratescu type contractions in b-metric spaces, Mathematics, Volume: 8 Issue: 3 DOI: 10.3390/math8030388.
    162. C. Martin, A. Petrusel: A fixed-point approach for azimuthal equatorial ocean flows, Applicable Anal., DOI: 10.1080/00036811.2020.1736288.
    163. A.D. Filip, A. Petrusel: Existence and uniqueness of the solution for a general system of Fredholm integral equations, Mathematical Methods Appl. Sci., DOI: 10.1002/mma.6737
    164. A. Petrusel, I.A. Rus, M.A. Serban: Frum-Ketkov operators which are weakly Picard, Carpathian J. Math., 36 (2020), no. 2, 294-301.
    165. A. Petrusel, G. Petrusel, J.-C. Yao: Perov type theorems for orbital contractions, J. Nonlinear Convex Anal., 21(2020), no. 4, 759-769.
    166. A. Petrusel, I.A. Rus: The Ulam-Hyers stability of an ordinary differential equation via Gronwall lemmas, Applied Set-Valued Anal. Optimization, 2(2020), no. 3, 295-303.
    167. Y.U. Gaba, E. Karapinar, A. Petrusel, S. Radenovic: New results on start-points for multi-valued maps, Axioms 2020, 9, 141.
    168. Gh. Morosanu, A. Petruşel: Two-parameter second-order differential inclusions in Hilbert spaces, Ann. Acad. Rom. Sci. Ser. Math. Appl., 12(2020), no. 1-2, 274-294.
    169. M.-F. Bota, L. Guran, A. Petrusel: New fixed point theorems on b-metric spaces with applications to coupled fixed point theory, J. Fixed Point Theory Appl., 22(2020), no. 3, Paper No. 74, 14 pp.
    170. A. Petrusel, G. Petrusel: Fixed point results for multi-valued locally contractive oprators, Appl. Set-Valued Anal. Optim. 2 (2020), No. 2, pp. 175-181.
    171. C. Chifu, A. Petrusel, G. Petrusel: Fixed point results for non-self nonlinear graphic contractions in complete metric spaces with applications, J. Fixed Point Theory Appl., 22(2020), no. 4, Paper No. 97, 16 pp.
    172. E. Karapinar, A. Petrusel, G. Petrusel: On admissible hybrid Geraghty contractions, Carpathian J. Math., 36(2020), no. 3, 433-442.
    173. A.D. Filip, A. Petrusel: Existence and uniqueness of the solution for a general system of Fredholm integral equations, Mathematical Meth. in Applied Sciences, 2020, DOI: 10.1002/mma.6737
    174. A. Petrusel, G. Petrusel, M.M. Wong: Fixed point results for orbital contractions in complete gauge spaces with applications, J. Nonlinear Convex Anal., 21(2020), no. 4, 791-803.
    175. A. Petrusel, G. Petrusel, J.-C. Yao: Graph contractions in vector-valued metric spaces and applications, Optimization, 70(2021), no. 4, 763-775.
    176. L.C. Ceng, A. Petrusel, X. Qin, J.C. Yao: A modified inertial subgradient extragradient method for solving pseudomonotone variational inequalities and common fixed point problems. Fixed Point Theory, 21 (2020), No. 1, 93--108.
    177. A. Petrusel, G. Petrusel, J.-C. Yao: Two inertial subgradient extragradient algorithms for variational inequalities with fixed-point constraints, Optimization, 70 (2021), No. 6, 1337-1358, DOI: 10.1080/02331934.2020.1858832.
    178. S. Som, A. Petrusel, L.K. Dey: Some remarks on the metrizability of some metric-like structures, Carpathian J. Math., 37 (2021), No. 2, 265-272, DOI: 10.37193/CJM.2021.02.12.
    179. A. Petrusel, I.A. Rus, M.A. Serban: Theoretical and numerical considerations on Bratu-type problems, Studia Univ. Babes-Bolyai Math., 66 (2021), No. 1, 29-46, DOI: 10.24193/subbmath.2021.1.03.
    180. E. Karapinar, A. Petrusel, G. Petrusel: Frum-Ketkov type multivalued operators, Carpathian J. Math., 37 (2021), No. 2, 203-210, DOI: 10.37193/CJM.2021.02.06
    181. A. Petrusel, G. Petrusel: Fixed point results for decreasing convex orbital operators in Hilbert spaces, J. Fixed Point Theory Appl., 23 (2021), No. 3 Article Number: 35, DOI: 10.1007/s11784-021-00873-1.
    182. Y.F. Su, A. Petrusel, J.-C. Yao: A study of a special kind of N-fixed point equation system and applications, Miskolc Math. Notes, 22 (2021), No. 1, 443-455, DOI: 10.18514/MMN.2021.1996
    183. A. Petrusel, I.A. Rus, M.-A. Serban: Some variants of fibre contraction principle and applications: from existence to the convergence of successive approximations. Fixed Point Theory, 22 (2021), No. 2, 795--808.
    184. A. Petrusel, G. Petrusel, J.-C. Yao: On some stability properties for fixed point inclusions, J. Nonlinear Convex Anal., 22(2021), No. 8, 1465--1474.
    185. A. Petrusel, I.A. Rus: On some classes of Fredholm-Volterra integral equations in two variables, Montes Taurus J. Pure Applied Math., 4 (2021), No. 3, 25-32.
    186. L.C. Ceng, A. Petrusel, X. Qin, J.-C. Yao: Pseudomonotone variational inequalities and fixed points. Fixed Point Theory, 22 (2021), No. 2, 543--558.
    187. A. Petrusel, Gheorghe Moroşanu - on the occasion of his 70th birthday, Stud. Univ. Babeş-Bolyai Math. 66 (2021), no. 1, 3--4.
    188. S. Abbas, M. Benchohra, A. Petrusel, Coupled Hilfer and Hadamard fractional differential systems in generalized Banach spaces, Fixed Point Theory 23 (2022), no. 1, 21--34.
    189. S. Som, S. Laha, A. Petrusel, L.K. Dey, Best proximity point results on arbitrary topological spaces and the Banach contraction principle revisited, J. Nonlinear Convex Anal. 23 (2022), no. 1, 67--85.
    190. B. Tan, A. Petrusel, X. Qin, J.-C. Yao, Global and linear convergence of alternated inertial single projection algorithms for pseudo-monotone variational inequalities, Fixed Point Theory 23 (2022), no. 1, 391--425.
    191. A. Petrusel, I.A. Rus, Fixed point equations with abstract Volterra operators on spaces of functions of several variables, Appl. Anal. Discrete Math. 16 (2022), no. 1, 189--201.
    192. L. Liu, A. Petrusel, X. Qin, J.-C. Yao, An inertial subgradient-extragradient algorithm for solving pseudomonotone variational inequalities, Fixed Point Theory 23 (2022), no. 2, 533--555.
    193. A. Petrusel, G. Petrusel, Common fixed point theory for a pair of multivalued operators, Carpathian J. Math. 38 (2022), no. 3, 707--714.
    194. C. Martin, A. Petrusel, Free surface equatorial flows in spherical coordinates with discontinuous stratification depending on depth and latitude, Annali di Matematica Pura ed Applicata, (2022), https://doi.org/10.1007/s10231-022-01214-w.
    195. A. Petrusel, G. Petruşel, J.-C. Yao: Common fixed point results for a general class of operators, J. Nonlinear Convex Anal. 23 (2022), no. 11, 2687-2694.
    196. C.L. Mihit, G. Mot, A. Petrusel: Fixed point theory for multi-Valued Feng-Liu-Subrahmanyan contractions, Axioms Axioms 2022, 11(10), 563; https://doi.org/10.3390/axioms11100563
    197. A. Petrusel, R. Trusca, J.-C. Yao: Some local fixed point theorems for generalized multi-valued contractions with applications, J. Nonlinear Convex Anal. 23 (2022), no. 12, 2835-2845.
    198. Q.H. Ansari, J. Balooee, A. Petruşel, Iterative algorithms for variational inclusions in Banach spaces, Fixed Point Theory 24 (2023), no. 1, 49-78.
    199. A. Petrusel, G. Petruşel, Fixed points of multi-valued Subrahmanyan contractions, Applied Set-Valued Analysis and Optimization 4 (2022), no. 3, 367-373.
    200. A. Petrusel, I.A. Rus: On some classes of Fredholm-Volterra integral equations in two variables, Montes Taurus J. Pure Appl. Math. 4 (2022), 25-32.
    201. P. Mondal, H. Garai, A. Petrusel, L.K. Dey, On best proximity points of cyclic contractions via implicit relations, J. of Analysis (2023). https://doi.org/10.1007/s41478-022-00533-8
    202. A. Petrusel, G. Petruşel, J.-C. Yao: New contributions to fixed point theory for multi-valued Feng-Liu contractions, Axioms 2023, 12(3), 274; https://doi.org/10.3390/axioms12030274
    203. A. Petrusel, G. Petrusel: Fixed point results for multi-valued graph contractions on a set endowed with two metrics, Ann. Acad. Rom. Sci. Ser. Math. Appl. 15 (2023), no. 1-2, 147-153.
    204. V. Berinde, A. Petrusel, I.A. Rus: Remarks on the terminology of the mappings in fixed point iterative methods in metric spaces, Fixed Point Theory 24 (2023), no. 2, 525-540.
    205. A. Bera, L. K. Dey, A. Petrusel, A. Chanda: Best proximity results for p -proximal contractions on topological spaces, Carpathian J. Math. 39 (2023), no. 3, 621-632.
    206. A. Petrusel, G. Petrusel: Graphical contractions and common fixed points in b-metric spaces, Arab. J. Math. (Springer) 12 (2023), no. 2, 423-430.
    207. Gh. Morosanu, A. Petrusel: On a delay integro-differential equation in Banach space, Discrete Contin. Dyn. Syst. Ser. S 16 (2023), no. 6, 1596-1609.
    208. S. Laha, H. Garai, A. Petrusel, L.K. Dey: On some contractive mappings and a new version of implicit function theorem in topological spaces, Filomat 37 (2023), no. 15, 4959-4970.
    209. R. Shukla, R. Pant, A. Petrusel: On stationary and nonstationary iterative methods for nonexpansive type mappings in Banach spaces, Rev. R. Acad. Cienc. Exactas Fís. Nat. Ser. A Mat. RACSAM 117 (2023), no. 3, Paper No. 100, 21 pp.
    210. L.-C. Ceng, A. Petrusel, X. Qin, J.C. Yao: On inertial subgradient extragradient rule for monotone bilevel equilibrium problems, Fixed Point Theory 24 (2023), no. 1, 101-126.
    211. X. Qin, A. Petrusel, B. Tan, J.-C. Yao: Efficient extragradient methods for bilevel pseudomonotone variational inequalities with non-Lipschitz operators and their applications, Fixed Point Theory 25 (2024), no. 1, 309-331.
    212. A. Petrusel, G. Petrusel, L. Horvath: Maia type fixed point theorems for multi-valued Feng-Liu operators, J. Anal. 32 (2024), no. 1, 73-83.
    213. A. Petrusel, G. Petrusel, L. Zhu: On some properties of multi-valued Feng-Liu-type operators in metric spaces, Axioms 13 (2024), Issue 1, Article Number 24, DOI10.3390/axioms13010024
    214. D. Ghosh, A. Petrusel, J.-C. Yao: Existence and uniqueness for spatially inhomogeneous coagulation condensation equation with multiple fragmentation, J. Integral Equations Appl. 36 (2024), no. 1, 1-22.
    215. A. Petrusel, G. Petrusel, J.-C. Yao: New fixed point results for nonlinear Feng-Liu contractions with applications, Topol. Methods Nonlinear Anal. 63 (2024), no. 1, 153-166.
    216. M. Cvetkovic, E. Karapinar, A. Petrusel: Fixed point theorems for basic theta-contraction and applications, Carpathian J. Math. 40 (2024), no. 3, 789-804.
    217. L. Liu, A. Petrusel, X. Qin, J.-C. Yao: On the convergence of broadcast incremental algorithms with applications, Fixed Point Theory 25 (2024), no. 2, 635–666.
    218. S. Ghosh, D. Ghosh, A. Petrusel, XP. Zhao: Generalized Hukuhara weak subdifferential and its application on identifying optimality conditions for nonsmooth interval-valued functions, J. Nonlinear Variational Anal. 8 (2024), Issue 2, 333-368.
    219. A. Petrusel, G. Petrusel, J.-C. Yao: Multi-valued operators and admissible perturbation technique in vector-valued metric spaces, J. Nonlinear Convex Anal. 25 (2024), Issue 7, 1649-1658.
    
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    Book Chapters, Papers in Proceedings of International Conferences

    1. A. Petrusel, G. Mot: Convexity and decomposability in multivalued analysis, Proc. of the Generalized Convexity/Monotonicity Conference, Samos, Greece, 1999, Lecture Notes in Economics and Mathematical Sciences, Springer-Verlag, 2001, 333-341.
    2. A. Petrusel, I.A. Rus: Multivalued Picard and weakly Picard operators, Proc. of the International Conference on Fixed Point Theory and Applications, Yokohama Publ., 2004, 207-226.
    3. A. Petrusel: Fixed point theory: the Picard operator technique, Proc. of the Mathematical Analysis Seminar, University of Malaga and University of Sevilla, 2004, 175-193.
    4. A. Petrusel, I.A. Rus: Well-posedness of the fixed point problem for multivalued operators, Applied Analysis and Differential Equations (O. Carja and I. I. Vrabie eds.), World Scientific 2007, pp. 295-306.
    5. I.A. Rus, A. Petrusel, G. Petrusel: Fixed point theorems for set-valued Y-contractions, Fixed Point Theory and its Applications (J. Jachymski and S. Reich-Eds.), Banach Center Publ., 77 (2007), 227-237.
    6. G. Mot, A. Petrusel: Some remarks on well-posed problems, Bull. Applied Computer Mathematics, (Proceedings of the Pannonian Applied Mathematics Meetings BAM-CXII Nr. 2357, 25-28 October 2007, Arad, Romania), CXII(2008), 59-66.
    7. A. Petrusel, I.A. Rus: The theory of a metric fixed point theorem for multivalued operators, Proc. of the Ninth Intern. Conf. on Fixed Point Theory and its Applications, Changhua, Taiwan, July 16-22, 2009, Yokohama Publ. 2011, 161-175.
    8. A. Petrusel, I.A. Rus: A class of functional-integral equations with applications to a bilocal problem, in Topics in Mathematical Analysis and Applications, (T.M. Rassias, L. Toth-Editors), Springer Verlag Heidelberg, 2014, pp. 609-631.
    9. A. Petrusel, O. Mlesnite, C. Urs: Vector-valued metrics in fixed point theory, in Infinite Products of Operators and their Applications. A research workshop of the Israel Science Foundation, Haifa, Israel, May 21--24, 2012. Providence, RI: American Mathematical Society, (ISBN 978-1-4704-1480-1/pbk; 978-1-4704-2275-2/ebook), Israel Mathematical Conference Proceedings, Contemporary Mathematics, Volume 636, 2015, 149-165, http://dx.doi.org/10.1090/conm/636/12734.
    10. A.-D. Filip, A. Petrusel: Fixed point theorems for multivalued Zamfirescu operators in convex Kasahara spaces, in Convexity and Discrete Geometry Including Graph Theory (K. Adiprasito, I. Barany, C. Vilcu-Eds.), Proc. of the Conference celebrating the 70th anniversery of Professor Tudor Zamfirescu, Mulhouse France, September 7-11, 2014, Springer, 2016, pp. 167-180.
    11. V. Berinde, A. Petrusel, I.A. Rus, M.A. Serban: The retraction-displacement condition in the theory of fixed point equation with a convergent iterative algorithm, in Mathematical Analysis, Approximation Theory and their Applications (Themistocles M. Rassias, V. Gupta-Eds.), Springer 2016, pp. 75-106.
    12. A. Petrusel, G. Petrusel: Coupled fixed points and coupled coincidence points via fixed point theory, in: Mathematical Analysis and Applications, Book Editors: M. Ruzhansky, H. Dutta, R.P. Agarwal, Wiley, 2018, pp. 661-717.
    13. A. Petrusel, I.A. Rus: Ulam Stability of Zero Point Equations, in: Ulam type Stability, J. Brzdek, D. Popa, Th. M. Rassias (eds.), Springer Cham, 2019, pp. 345-364.
    14. A. Petrusel, R. Trusca: Iterative approximations for non-self operators, Proc. 21st Intern. Symposium on Symbolic and Numer. Algorithms for Sci. Computing (SYNASC) 2019, IEEE Computer Soc. Conference Publ. Serv. 2019, 307-310.
    15. A. Petrusel, I.A. Rus: Graphic contraction principle and applications, Mathematical Analysis and Applications (Th.M. Rassias, P.M. Pardalos - Eds.), Springer Cham, 2019, 411-432.
    16. A. Petrusel, I.A. Rus: The relevance of a metric condition on a pair of operators in common fixed point theory. Advances in Metric Fixed Point Theory and Applications (Yeol Je Cho, Mohamed Jleli, Mohammad Mursaleen, Bessem Samet, Calogero Vetro - Eds.), Springer, Singapore, 2021, 1--21.
    17. A. Petrusel, I.A. Rus: Introduction to Halanay lemma, via weakly Picard operator theory, Approximation Theory and Analytic Inequalities (Th.M. Rassias - Ed.), Cham, Springer. 2021, 379--390.
    18. A. Petrusel, G. Petruşel, Fixed point theory in graph metric spaces, Approximation and Computation in Science and Engineering, 679--691, Springer Optim. Appl., 180, Springer, Cham, 2022.
    19. M. Moga, A. Petrusel: Large contractions and surjectivity in Banach spaces, Springer Proc. Math. Stat., 419, Springer, Singapore, 2023, 3–12.
    
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    Papers in Romanian Journals

    1. A. Petrusel: On a theorem by Miron Nicolescu, Seminar on Fixed Point Theory, Babes-Bolyai Univ., 1984, 51-54.
    2. A. Petrusel: On the fixed points set of multivalued mappings, Seminar on Fixed Point Theory, Babes-Bolyai Univ., 1985, 53-58.
    3. A. Petrusel: Starshaped and fixed points, Seminar on Fixed Point Theory, Babes-Bolyai Univ., 1987, 19-24.
    4. A. Petrusel: Fredholm-Volterra integral equations and Maia's theorem, Seminar on Fixed Point Theory, Babes-Bolyai Univ., 1988, 79-82.
    5. A. Petrusel: Coincidence points, fixed points and surjectivity, Seminar on Fixed Point Theory, Babes-Bolyai Univ., 1989, 165-172.
    6. A. Petrusel: Coincidence theorems for p-proximate multivalued mappings, Seminar on Fixed Point Theory, Babes-Bolyai Univ., 1990, 21-28.
    7. A. Petrusel: A generalization of Peetre-Rus theorem, Studia Univ. Babes-Bolyai, Mathematica 35(1990), 81-85.
    8. A. Petrusel: $(\epsilon,\phi)$-locally contractive multivalued mappings and applications, Studia Univ. Babes-Bolyai, Mathematica, 36(1991), 24-36.
    9. A. Petrusel: Fixed point theorems of Krasnoselskii type for (\epsilon,\phi)-locally contractive multivalued mappings, Studia Univ. Babes-Bolyai, Mathematica, 37(1992), 91-96.
    10. A. Petrusel: A generalization of the Krasnoselskii's fixed point theorem, Seminar on Fixed Point Theory, Babes-Bolyai Univ., 1993, 11-16.
    11. A. Petrusel: Fixed points of retractible multivalued operators, Studia Univ. Babes-Bolyai, Mathematica, 38(1993), 57-63.
    12. A. Petrusel: Multivalued operators in generalized metric spaces, Seminar on Fixed Point Theory, Babes-Bolyai Univ., 1994, 11-16.
    13. A. Petrusel: An existence result for a multivalued Cauchy problem, Seminar on Fixed Point Theory, Babes -Bolyai Univ., 1995, 19-28.
    14. A. Petrusel: A-fixed point theorems for locally contractive multivalued operators and applications to fixed point stability, Studia Univ. Babes-Bolyai, Mathematica, 41(1996), 79-92.
    15. A. Petrusel: Continuous selections for multivalued operators with decomposable values, Studia Univ. Babes-Bolyai, Mathematica, 41(1996), 97-100.
    16. A. Petrusel, A. Muntean: On Browder's fixed point theorem, Studia Univ. Babes-Bolyai, Mathematica, 43(1998), 103-106.
    17. A. Petrusel, G. Petrusel: Publications of the Cluj-Napoca Seminar on Fixed Point Theory, Seminar on Fixed Point Theory, Babes-Bolyai Univ., 1999, 1-18.
    18. A. Petrusel: Coincidence theorems and applications, Analele Stiintifice ale Univ. Ovidius Constanta, 8(2000), 93-100.
    19. I. A. Rus, A. Petrusel, A. Sîntamarian, Data dependence of the fixed point set of multivalued weakly Picard operators, Studia Univ. Babes-Bolyai, Mathematica, 46 (2), (2001), 111-121.
    20. A. Petrusel: Fixed points and selections for multivalued operators, Sem. on Fixed Point Theory Cluj-Napoca, 2(2001), 3-22.
    21. A. Petrusel: Fixed point theory with applications to dynamical systems and fractals, Sem. on Fixed Point Theory Cluj-Napoca, 3 (2002), 305-316.
    22. A. Petrusel: Caristi type operators and applications, Studia Univ. Babes-Bolyai, Mathematica, 48(2003), 115-123.
    23. A. Petrusel: Locally contractive operators and self-similarity, Annals of the Tiberiu Popoviciu Seminar on Functional Equations, Approximation and Convexity, 1(2003), 115-122.
    24. G. Mot, A. Petrusel: Selection theorems for multivalued operators, Annals of the Tiberiu Popoviciu Seminar on Functional Equations, Approximation and Convexity, 3(2005), 151-156.
    25. A. Petrusel, G. Petrusel: A note on multivalued Meir-Keeler type operators, Studia Univ. "Babes-Bolyai", Mathematica, 51(2006), no. 4, 181-188.
    26. L. Guran, A. Petrusel: Strict fixed points for contractive-type operators on metric spaces endowed with a w-distance, Analele Universitatii de Vest Timisoara, Seria Matematica-Informatica, XLVII(2009), No. 3, 57-66.
    27. A. Petrusel: Ciric type fixed point theorems, Studia Univ. Babes-Bolyai, Math., 59(2014), No.2, 233-245.
    
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    Papers in Proceedings of the National Conferences

    1. A. Petrusel: A fixed point theorem of Krasnoselskii type for locally contractive multivalued operators, Proc. of the 23-rd Conf. on Geometry and Topology (Editor: D. Andrica), Cluj-Napoca, 1993, 117-121.
    2. G. Mot, A. Petrusel: A characterization of the $ \varepsilon$-chainable generalized metric spaces, Lucrarile Sesiunii de Comunicari Stiintifice a Univ. "Aurel Vlaicu" Arad, Editura Universitatii Arad, 1994, 135-138.
    3. A. Petrusel: A generalization of Krasnoselskii's fixed point theorem, Proc. Sci. Comm. Meeting of Aurel Vlaicu University (Editor: Gh. Halic), Editura Universitatii Arad, Arad, 1996, 109-112.
    4. A. Petrusel: A topological property of the solutions set of lipschtzian differential inclusions, Lucrarile Sem. Itin."Tiberiu Popoviciu", (Editor E. Popoviciu), Ed. Srima, Cluj-Napoca, 1997, 79-82.
    5. A. Petrusel: The fixed points set for some multivalued operators and applications to integral inclusions, Proc. P. A. M. M. Conference 1552/98, Arad, Romania, May, 1998, (Editor:F. Fazekas) Bull. Applied and Computer Math., LXXXVI-A(1998), 389-396.
    6. A. Petrusel: Existence theorems for some nonlinear integral inclusions, Conference on Analysis, Functional Equations, Approximation and Convexity in Honor of Prof. Dr. Elena Popoviciu (editor: Mircea Ivan), Ed. Srima, Cluj-Napoca, 1999, 238-243.
    7. A. Muntean, A. Petrusel: Coincidence theorems for l.s.c. multifunctions in topological vector spaces, Proc. of the "Tiberiu Popoviciu" Itinerant Seminar (Editor E. Popoviciu), Ed. Srima, Cluj-Napoca, 2000, 147-151.
    8. A. Petrusel: On the topological dimension of the fixed points set for some multivalued operators, Proc. of the "Tiberiu Popoviciu" Itinerant Seminar (Editor E. Popoviciu), Ed. Srima, Cluj-Napoca, 2000, 173-178.
    9. A. Petrusel: Coincidence theorems and applications, Analele Univ. "Aurel Vlaicu" Arad, 2000, 145-156.
    10. A. Petrusel, A. Sîntamarian: On Caristi-type operators, Proc. of the "Tiberiu Popoviciu" Itinerant Seminar (Editor E. Popoviciu), Ed. Srima, Cluj-Napoca, 2001, 181-190.
    11. A. Petrusel: Weakly pseudo-Picard multifunctions, Sem. Th. de la Meill. Approx., Conv. et Optim. (Editor: E. Popoviciu), Ed. Srima, Cluj-Napoca, 2001, 93-102.
    12. A. Petrusel: Fixed points and selections for multi-functions with decomposable values, Proc. of the "Tiberiu Popoviciu" Itinerant Seminar (Editor E. Popoviciu), Ed. Srima, Cluj-Napoca, 2002, 211-221.
    13. A. Petrusel: Caristi type operators and applications, Proc. of the International Conference on Applied Math., Baia-Mare- Borsa, Octomber 2002, Bul. Stiin. Univ. de Nord Baia-Mare, 18(2002), 297-302.
    14. A. Petrusel: A topological property of the fixed point set, Proc. of the "BOLYAI 200" International Conference (Editor D. Andrica), Cluj University Press, Cluj-Napoca 2002, 123-130.
    15. A. Petrusel: Fixed points and coincidence points for multifunctions, Conference on Analysis, Functional Equations, Approximation and Convexity in Honour of Professor Elena Popoviciu, (Editors: L. Lupsa and M. Ivan) Risoprint Press Cluj-Napoca, 2004, 195-198.
    
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    Conferences and Communications

    • 1997- Second Joint Conference on Modern Applied Mathematics, June 1997, Ilieni, Romania (jointly organized by Babes-Bolyai Univesrity Cluj-Napoca and Eötvos Lorand University Budapesta).
    • 1998- International Workshop ''Analysis and Control of Differential Systems'', August 1998, Univ. Ovidius, Constanta, Romania.
    • 1998- 4-eme Colloque Franco-Roumain EDP: Theorie, Applications, Calcul, August-Septembrie 1998, Metz, Franta.
    • 1999- Third Joint Conference on Mathematics and Computer Science, June 1999, Visegrad, Ungaria (jointly organized by Babes-Bolyai Univesrity Cluj-Napoca and Eötvos Lorand University Budapesta).
    • 1999- Seminar on Fixed Point Theory and Applications, September 1999, Babes-Bolyai University Cluj-Napoca, Romania.
    • 2000- 17-th European Conference on Operational Research, July 2000, Budapest, Hungary.
    • 2000- Third World Congress of Nonlinear Analysts, July 2000, Univ. of Catania, Italy.
    • 2001- Fractals in Graz 2001, Technical University of Graz, June 2001, Graz, Austria.
    • 2001- International Conference on Nonlinear Operators, Differential Equations and Applications, September 2001, Babes-Bolyai Univ. Cluj-Napoca, Romania.
    • 2002- Third International Conference on Applied Math., Octombrie 2002, Baia-Mare si Borsa, Romania.
    • 2004- International Conference on Nonlinear Operators, Differential Equations and Applications, August 24-27, 2004, Cluj-Napoca, Romania.
    • 2005- ICTAMI 2005, Alba-Iulia, September 2005, Albac, Romania.
    • 2006- Sixth Joint Conference on Mathematics and Computer Science, June 2006, Pecs, Hungary.
    • 2006- International Conference on Applied Analysis and Differential Equations, September 2006, Iasi, Romania.
    • 2006- International Conference on Applied Mathematics- ICAM5, September 2006, Baia-Mare, Romania.
    • 2007- ICNODEA-2007, Babes-Bolyai University Cluj-Napoca, July 2007, Cluj-Napoca, Romania.
    • 2007- International Conference "Teodor Angheluta", Technical University Cluj-Napoca, Septembre 2007, Cluj-Napoca, Romania.
    • 2007- International Conference "Tiberiu Popoviciu", Babes-Bolyai University Cluj-Napoca, Septembre 2007, Cluj-Napoca, Romania.
    • 2009- The 11th International Symposium on Symbolic and Numeric Algorithms for Scientific Computing (SYNASC09), September 26-29, 2009, Timisoara, Romania.
    • 2010- "Alexandru Myller" Mathematical Seminar Centennial Conference, June 21-26 2010, "Al.I. Cuza" University Iaşi, Romania.
    • 2010- ICAM 7 International Conference, September 1-4 2010, North University Baia-Mare, Romania.
    • 2014- 5th Minisymposium on Fixed Point Theory and Applications, part of ICAM 10, North University Baia-Mare, 1-7 iunie 2014, http://icam.ubm.ro/
    • 2016- Workshop on Fixed Point Theory ant its Applications - On the occasion of Enrique Llorens 70th bithday, December 15-16, 2016, University of Valencia, Spain.
    • 2018- National Scientific Conference of the Academy of Romanian Scientists, March 28, 2018, Bucharest.
    • 2019- National Scientific Conference of the Academy of Romanian Scientists, April 5, 2019, Bucharest.
    
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    Monographs

    1. A. Petrusel: Multifunctii si aplicatii, Editura Presa Universitara Clujeana, Cluj-Napoca, 2002, 215 pp, ISBN 973-610-060-X.
    2. A. Petrusel: Operator Inclusions, House of the Book of Science Cluj-Napoca, 2002, 165 pp., ISBN 973-686-312-3.
    3. I.A. Rus, A. Petrusel, G. Petrusel: Fixed Point Theory 1950-2000 : Romanian Contributions, House of the Book of Science, Cluj-Napoca, 2002, 325 pp, ISBN 973-686-311-5.
    4. A. Petrusel, G. Mot : Multivalued Analysis and Mathematical Economics, House of the Book of Science, Cluj-Napoca, 2004, 148 pp, ISBN 973-686-516-9.
    5. G. Mot, A. Petrusel, G. Petrusel: Topics in Nonlinear Analysis and Applications to Mathematical Economics, House of the Book of Science, Cluj-Napoca, 2007, 154 pp.
    6. I.A. Rus, A. Petrusel, G. Petrusel: Fixed Point Theory, Cluj University Press, 2008, 514 pp.
    
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    Attended Conferences

    • 1998- International Workshop Analysis and Control of Differential Systems, August 1998, Univ. Ovidius, Constanta, Romania.
    • 1998- 4-eme Colloque Franco-Roumain EDP: Theorie, Applications, Calcul, August-Septembrie 1998, Metz, Franta.
    • 1999- Third Joint Conference on Mathematics and Computer Science, iunie 1999, Visegrad, Ungaria
    • 1999- Summer School and the 6-th International Symposium on Generalized Convexity/Monotonicity, August-September 1999, Univ. Aegean, Samos, Greece.
    • 1999- Seminar on Fixed Point Theory and Applications, September 1999, Univ. Babes-Bolyai Cluj-Napoca, Romania.
    • 2000- 17-th European Conference on Operational Research, July 2000, Budapest, Hungary.
    • 2000- Third World Congress of Nonlinear Analysts, Iulie 2000, Univ. of Catania, Italy.
    • 2001- Fractals in Graz 2001, Technical University of Graz, June 2001, Graz, Austria.
    • 2004- Fifth Joint Conference on Mathematics and Computer Science, June 2004, Debrecen, Hungary.
    • 2005- International Conference "Fixed Point Theory and its Applications"- In Memory of Jim Dugundji, August 2005, Bedlewo, Poland.
    • 2006- Sixth Joint Conference on Mathematics and Computer Science, June 2006, Pecs, Hungary.
    • 2006- International Conference on Applied Analysis and Differential Equations, September 2006, Iasi, Romania.
    • 2006- International Conference on Applied Mathematics- ICAM5, September 2006, Baia-Mare, Romania. li>2007- ICNODEA-2007, Babes-Bolyai University Cluj-Napoca, July 2007, Cluj-Napoca, Romania.
    • 2007- International Conference "Teodor Angheluta", Technical University Cluj-Napoca, Septembre 2007, Cluj-Napoca, Romania.
    • 2007- International Conference "Tiberiu Popoviciu", Babes-Bolyai University Cluj-Napoca, Septembre 2007, Cluj-Napoca, Romania.
    • 2009- The 11th International Symposium on Symbolic and Numeric Algorithms for Scientific Computing (SYNASC09), September 26-29, 2009, Timisoara, Romania.
    • 2010- Alexandru Myller Mathematical Seminar Centennial Conference, June 21-26, 2010, Universitatea "Al.I. Cuza" Iasi, Romania.
    • 2010- International Conference ICAM7, September 1-4, 2010, Nord University of Baia-Mare, Romania.
    • 2014- International Geometry Conference dedicated to Tudor Zamfirescu, Univ. Mulhouse, Franta, 7-11 septembrie 2014, talk (joint with A.-D. Filip) with the title: Contributions of Tudor Zamfirescu to fixed point theory, http://www.math.uha.fr/chevallier/TZ70/TZAng.htm
    • 2016-International Workshop on Applied Analysis and Optimization, China Medical University Taichung, May 25-28, 2016, Taichung, Taiwan.
    • 2016-Workshop on Metric Fixed Point Theory and Its Applications, in Honour of Enrique Llorens Fuster on the occasion of his 70th anniversary, University of Valencia, December 14-16, 2016.
    • 2017- International Workshop on Nonlinear Analysis and Optimization, dedicated to 60th anniversery of Aram Arutyunov, University of Porto, April 19-21, 2017, Conference's title: Coupled Coincidence Point Theory via Fixed Point Theory.
    • 2017 - Institute of Fundamental an Frontier Studies, University of Electrical Science and Technology, Chengdu, P.R. China, October 2017
    • 2017 - Hangzhou Dianzi University, Hangzhou, P.R. China, October 2017
    • 2017-12th International Conference on Fixed Point Theory and its Applications, Newcastle, July 24-28, 2017, Conference's title: Multi-valued Contraction Principle and Applications.
    • 2018- Colloquium and International Conference on Variational Analysis and Nonsmooth Optimization, June 28, 2018 and June 29 - July 01, 2018, Martin-Luther-University Halle-Wittenberg, Halle, Conference's title: Fixed point results for pseudo-contraction in generalized metric spaces.
    • 2019- Workshop on Nonsmooth and Variational Analysis, University of Vienna, ESI - Vienna, AUSTRIA, January 28 to February 1, 2019, Conference's title: Variational Analysis Concepts in Coincidence Point Theory.
    • 2019-13th International Conference on Fixed Point Theory and its Applications, Henan Normal University, XinXiang, July 9-14, 2019, Conference's title: Graphical Contraction Principle and Applications.
    • 2019-SYNASC 2019, West University of Timisoara, September 4-9, 2019, Conference's title: Iterative Approximations for Non-self Operators.
    • 2020-SYNASC 2020, West University of Timisoara, September 1-4, 2020, Conference's title: A retraction-displacement condition related to some stability properties for multi-valued fixed point problems.
    • 2020-2020 Autumn Scientific Conference of the Academy of Romanian Scientists, Bucharest, November 26, 2020, Conference's title: Frum-Ketkov operators and fixed points.
    • 2021-Spring Scientific Conference of the Academy of Romanian Scientists, Bucharest, June 10, 2021, Conference's title: On some generalizations of the multi-valued contraction principle.
    • 2021-International Scientific Conference Mathematics and IT: Research and Education (MITRE-2021), July 1-3, Chisinau, Republica Moldova, Conference's title: Some new results in metric fixed point theory.
    • 2021-SYNASC 2021, West University of Timisoara, December 7-10, 2021, Conference's title: A fixed point result for a convex type contraction.
    • 2022-SYNASC 2022, University of Linz, September 12-15, 2022, Conference's title: On a Maruster problem in the iterative approximations of fixed points for demicontractive operators (joint work with V. Berinde and I.A. Rus)
    • 2022 Second International Conference on Nonlinear Applied Analysis and Optimization, Indian Institute of Technology, Varanasi, India, December 19-22, 2022, Conference's title: Fixed point theorems for monotone type operators (joint work with G. Petrusel)
    
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    Invited Lectures

    1. Invited conferences

    1. A. Petrusel: On the fixed points set for some contractive multivalued operators, International Conference on Fixed Point Theory, Cluj-Napoca, 1999.
    2. A. Petrusel: Self-similarity and generalized contractions, Hamburg University, 2002.
    3. A. Petrusel: Multivalued Picard and weakly Picard operators, International Conference on Fixed Point Theory and its Applications, July 13-19, 2003, Valencia, Spain.
    4. A. Petrusel: Fixed points, Coincidence points and best approximations for multivalued operators, April 23, 2007, Dong-Hwa University, Hualien, Taiwan.
    5. A. Petrusel: Fixed points, Coincidence points and best approximations for multivalued operators, May 18, 2007, Changhua National University of Education, Changhua, Taiwan.
    6. A. Petrusel: Fixed points, fractals and well-posedness, May 2008, University of Valencia, Spain.
    7. A. Petrusel: Fixed point theorems in ordered metric spaces, International Conference ICAM7, September 1-4, 2010, Nord University of Baia-Mare, Romania.
    8. A. Petrusel: Fixed point and coincidence point theory via multivalued weakly Picard operator technique, Second Workskop on Fixed Point Theory and Applications, Amirkabir University of technology Tehran, Iran, June 14-15, 2011.
    9. A. Petrusel: Vector-Valued Metrics in Fixed Point Theory, Conference on Infinite Products of Operators and Their Applications, Technion, Israel, May 21-24, 2012.
    10. A. Petrusel: Fixed point and fixed set theorems for multivalued operators, MACOS 2014 - International Conference organized by Transylvania University Brasov, June 26-28 2014, http://www.unitbv.ro/mi/CercetareStiintifica/Manifestari/MACOS.aspx
    11. A. Petrusel: Fixed points and multivalued fractals for generalized contractions, 10th Joint Conference on Mathematics and Computer Science, Cluj-Napoca, May 21–25 2014, https://www.cs.ubbcluj.ro/~macs/2014/
    12. A. Petrusel: Fixed point theory for diagonal operators, International Workshop on Applied Analysis and Optimization, China Medical University Taichung, May 25-28, 2016, Taichung, Taiwan.
    13. A. Petrusel: Coupled fixed point problems and applications, International Symposium, Research and Education in Innovation Era, Aurel Vlaicu University Arad, Romania, December 8-10, 2016.
    14. A. Petrusel: Coupled fixed point problems and applications, Workshop on Fixed Point Theory ant its Applications - On the occasion of Enrique Llorens 70th bithday, December 15-16, 2016, University of Valencia, Spain.
    15. A. Petrusel: An extended version of the multi-valued contraction principle, International Workshop on Nonlinear and Variational Analysis, Kaohsiung Medical University, July 21-23, 2017.
    16. A. Petrusel: Ulam-Hyers stability in fixed point theory, Conference on Ulam's Type Stability, October 8-13, 2018, Timisoara.
    17. A. Petrusel: On some stability properties in fixed point theory, International Workshop on Nonlinear and Variational Analysis, Tianjin Politechnic University, July 15-17, 2019, Tianjin, P.R. China.
    18. A. Petrusel: Fixed point theory in terms of a metric and of an order relation, International Workshop on Fixed Point Theory, Graph Theory and Optimization, King Fahd University of Petroleum & Minerals, Dhahran, December 18-19, 2019.
    19. A. Petrusel: Existence and approximation for the fixed points of some nonself operators, 2020-AMS Sectional Meeting at University of Texas at El Paso, Special session on "Fixed Point Theory and its Applications", September 12-13, 2020.
    20. A. Petrusel: On some existence and stability results in metric fixed point theory, 10th International Workshop on Fixed Point Theory, Graph Theory and Their Applications, King Fahd University of Petroleum & Minerals, Dhahran, Saudi Arabia, December 14-15, 2020.
    21. A. Petrusel: Frum-Ketkov type operators, International Conference on Analysis and Its Applications - 2021, Nepal Math. Society & Katmandu University, April 9-11, 2021.
    22. A. Petrusel: Some new hybrid fixed point theorems, International Workshop on Nonlinear Anlysis, Fixed Point Theory and Applications, Technical Univ. of Cluj-Napoca, University Center Nord, Baia-Mare, May 19-20, 2021.
    23. A. Petrusel: On a general class of operators in fixed point theory, International Workshop on Digital Machine Learning, August 20-22, 2021, Chiang Mai University, Thailand.
    24. A. Petrusel: Fixed point equations with abstract Volterra operators on spaces of functions of several variables, Third Romanian Itineratnt Seminar on Mathematical Analysis and Applications, "1 Decembrie 1918" University Alba-Iulia, September 10-12, 2021.
    25. A. Petrusel: Existence and stability results in fixed point theory, International Conference on Functional Equations and Inequalities, September 12-18, 2021, Bedlewo, Poland.
    26. A. Petrusel: Common fixed point results in complete metric spaces, International Workshop on Nonlinear Analysis and Applications, October 13-16, 2021, University of Nis, Serbia.
    27. A. Petrusel: Kannan type fixed point theorems, International Symposium on Fixed Point Theory and Applications, King Fahd University of Petroleum & Minerals, Dhahran, Saudi Arabia, December 13-14, 2021.
    28. A. Petrusel: Step by step contraction principle for abstract Volterra operators, International Conference on Nonlinear Applied Analysis and Optimization, Banaras Hindu University Varanasi, India, December 21-23, 2021.

    2. Invited researcher

    1. 2003, October 1-28: Sevilla University, Spain
    2. 2004, September 15-29: Valencia University, Spain
    3. 2012, February 12-23: Chiang Mai University, Chiang Mai, Thailand and King Mongkut's University of Technology Thonburi, Bangkok, Thailand
    4. 2015, October 1-30: National Sun Yat-sen University, Kaohsiung, Taiwan
    5. 2016, May 1-30: National Sun Yat-sen University, Kaohsiung, Taiwan
    6. 2017, September 28-October 26, 2017: National Sun Yat-sen University, Kaohsiung, Taiwan
    7. 2018, August 28-September 27, 2018: National Sun Yat-sen University, Kaohsiung, Taiwan
    8. 2019, July 4-August 2, 2019: National Sun Yat-sen University, Kaohsiung, Taiwan
    9. 2022, December 14-January 13, 2023: National Sun Yat-sen University, Kaohsiung, Taiwan

    3. Invited Professor

    1. International School "Nonsmooth Analysis and Applications to Mathematical Economics, organized by the Excellence Center "Mathematics and its Applications", under the financial support of DAAD, Cluj-Napoca, Septembrie 2003.
    2. Visiting Professor at the Department of Applied Mathematics, Sun Yat-sen University, Kaohsiung, Taiwan, Mars-June 2007.
    
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    Membership in international grants

  • International grant: "Methods of nonlinear analysis in solving of problems of control and optimization" MOST 103-2923-E-039-001-MY3, Taiwan, 2015-2016 (Director: Prof. Jen-Chih Yao)
  • International grant: "On solution methods for equilibrium and optimization problems on manifolds", MOST 105-2115-M-039 -002 -MY3, Taiwan, 2017-2018 (Director: Prof. Jen-Chih Yao)
  • International grant: "On algorithms for vectorboptimization problems", MOST 105-2115-M-039 -005 -MY3, Taiwan, 2018-2019 (Director: Prof. Jen-Chih Yao)
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    a, December 21-23, 2021.

    2. Invited researcher

    1. 2003, October 1-28: Sevilla University, Spain
    2. 2004, September 15-29: Valencia University, Spain
    3. 2012, February 12-23: Chiang Mai University, Chiang Mai, Thailand and King Mongkut's University of Technology Thonburi, Bangkok, Thailand
    4. 2015, October 1-30: National Sun Yat-sen University, Kaohsiung, Taiwan
    5. 2016, May 1-30: National Sun Yat-sen University, Kaohsiung, Taiwan
    6. 2017, September 28-October 26, 2017: National Sun Yat-sen University, Kaohsiung, Taiwan
    7. 2018, August 28-September 27, 2018: National Sun Yat-sen University, Kaohsiung, Taiwan
    8. 2019, July 4-August 2, 2019: National Sun Yat-sen University, Kaohsiung, Taiwan
    9. 2022, December 14-January 13, 2023: National Sun Yat-sen University, Kaohsiung, Taiwan

    3. Invited Professor

    1. International School "Nonsmooth Analys and Applications to Mathematical Economics, organized by the Excellence Center "Mathematics and its Applications", under the financial support of DAAD, Cluj-Napoca, Septembrie 2003.
    2. Visiting Professor at the Department of Applied Mathematics, Sun Yat-sen University, Kaohsiung, Taiwan, Mars-June 2007.
    
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    Membership in international grants

  • International grant: "Methods of nonlinear analysis in solving of problems of control and optimization" MOST 103-2923-E-039-001-MY3, Taiwan, 2015-2016 (Director: Prof. Jen-Chih Yao)
  • International grant: "On solution methods for equilibrium and optimization problems on manifolds", MOST 105-2115-M-039 -002 -MY3, Taiwan, 2017-2018 (Director: Prof. Jen-Chih Yao)
  • International grant: "On algorithms for vectorboptimization problems", MOST 105-2115-M-039 -005 -MY3, Taiwan, 2018-2019 (Director: Prof. Jen-Chih Yao)