Despre noi

Grupul de cercetare se reuneşte săptămânal – marţi de la 14 la 16 în sala “e” a clădirii Mathematica.

Şedinţele au caracter de informare şi documentare relativ la direcţiile de cercetare promovate de colectiv.

Bilunar au loc expuneri plenare.

Direcţii de cercetare:

  • teoria aproximării
  • metode numerice
  • procese liniare de aproximare
  • procese aleatoare
  • ecuaţii stohastice
  • calcul paralel
  • matematici financiare

Colectivul

Prof. Dr. Agratini Octavian

COORDONATOR

Conf. Dr. Habil. Cӑtinaş Teodora

Conf. Dr. Chiorean Ioana

Conf. Dr. Habil. Lisei Hannelore

Conf. Dr. Roșca Alin Vasile

Conf. Dr. Róth Ágoston

Conf. Dr. Soós Anna

Conf. Dr. Trîmbițaș Radu

Conf. Dr. Micula Sanda

Lect. Dr. Radu Voichița-Adriana

Conf. Dr. Roșca Natalia

Lect. Dr. Somogyi Ildikó

La seminarii participă toți
STUDENȚII DOCTORANZI
care elaborează lucrarea în domeniul de cercetare al grupului.

Seminarii de cercetare

Anul universitar 2018-2019, semestrul II

  • 5 martie

Studiul curgerii si transferului de caldura in punctul de stagnare MHD al unui nanofluid peste o placa orizontala (conf. dr. Natalia Rosca)

  • 19 martie 

Studiul iteratelor unor operatori de tip Cheney-Sharma definiti pe triunghi cu laturi curbe (conf. habil. dr. Teodora Cătinaș

  • 2 aprilie 

Approximation by Durrmeyer Variant of λ-Bernstein Type Operators (lect. dr. Voichita Radu)

  • 16 aprilie

Interpolare cu functii de tip local fractale (lect. dr. Ildiko Somogy)

  • 7 mai 

Simularea numerica a transferului de caldura intr-o cavitate poroasa patrata umpluta cu un nanofluid (conf. dr. Alin Rosca)

  • 21 mai

Operatori de aproximare construiti cu ajutorul unor baze de tip Beta (prof. dr. Octavian Agratini)

  • 4 iunie

Metode numerice iterative pentru ecuatii integrale mixte Volterra-Fredholm (conf. habil. dr. Sanda Micula)

 

Articole notabile

Articole notabile ale membrilor colectivului, aparute incepand cu anul universitar 2017-2018:

  • Abel, U., Agratini, O., Păltănea, R., A complete asymptotic expansion for the quasi- interpolants of Gauss-Weierstrass operators, MEDITERRANEAN JOURNAL OF MATHEMATICS, Vol. 15, Issue 4, 2018, Article 156, 10 pages.    [cuartila 1]
  • Agratini, O., Aral, A., Deniz, E., On two classes of approximation processes of integral type, POSITIVITY, Vol. 21, Issue 3, 2017, 1189 – 1199.    [cuartila 2]
  • Cătinaş, T., Extension of some particular interpolation operators to a triangle with one curved side, Applied Mathematics and Computation 315 (2017) 286-297.    [cuartila 1]
  • Lisei H., Varga Cs., Vas O., Localization method for the solutions of nonhomogeneous operator equations, Applied Mathematics and Computation 329,  64–83 (2018)    [cuartila 1]
  • Micula, S., An iterative numerical method for fractional integral equations of the second kind, J. Comput. Appl. Math., Vol. 339, 2018, 124-133, doi:10.1016/j.cam.2017.12.006.    [cuartila 1]
  • Micula, S., Cattani, C., On a numerical method based on wavelets for Fredholm-Hammerstein integral equations of the second kind, Math. Method. Appl. Sci., Vol. 41(18), 2018. 9103-9115, doi:10.1002/mma.4952.   [cuartila 2]
  • Micula, S.,  On some iterative numerical methods for a Volterra functional integral equation of the second kind, J.Fixed Point Theory Appl., Vol. 19, 2017, 1815–1824, doi:10.1007/s11784-016-0336-6.  [cuartila 2]
  • Sheremet, M. A., Roşca, N.C., Roşca, A.V., Pop, I., Numerical simulation of mixed convection heat transfer in a square porous cavity filled with a nanofluid with suction/injection effect, Computers & Mathematics with Applications, 2018;   [cuartila 1]
  • Borrelli, A., Giantesio, G., Patria, Roşca, N.C., Roşca, A.V., Pop,I., Influence of temperature and magnetic field on the oblique stagnation-point flow for a nanofluid past a vertical stretching/shrinking sheet, INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW, 2018;   [cuartila 1]
  • Pop, I., Roşca, N.C., Roşca, A.V.MHD stagnation-point flow and heat transfer of a nanofluid over a stretching/shrinking sheet with melting, convective heat transfer, INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW, 2018;   [cuartila 1]
  • Sheremet, M.A., Roşca, A.V., Pop, I., The influence of thermal radiation on unsteady free convection in inclined enclosures filled by a nanofluid with sinusoidal boundary conditions, International Journal of Numerical Methods for Heat and Fluid Flow, 2018;   [cuartila 1]
  • Giantesio, G., Verna, A., Roşca, N.C., Roşca, A.V., Pop, I.,  MHD mixed convection oblique stagnation-point flow on a vertical plate, INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW, Vol. 27, no. 12, pp. 2744 – 2767, 2017;    [cuartila 2]
  • Roşca, N.C., Roşca, A. V., Merkin, J., Pop, I., Mixed convection flow, heat transfer, species concentration near the stagnation point on a vertical flat plate with Stefan coupled blowing, INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW, Vol. 27, no. 1, pp. 77 – 103, 2017;   [cuartila 2]
  • Borrelli, A., Giantesio, G., Patria, M.C., Roşca, N.C., Roşca, A.V., Pop, I., Buoyancy effects on the 3D MHD stagnation-point flow of a Newtonian fluid, COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION, Vol. 43, pp. 1-13, 2017;   [cuartila 1]
  • Roşca, N.C., Pop, I.,  A numerical study of the axisymmetric rotational stagnation point flow impinging radially a permeable stretching/shrinking surface in a nanofluid, INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW, Vol. 27, no. 11, pp. 2415 – 2432, 2017.     [cuartila 2]
  • Roşca, N.C., Pop, I., Axisymmetric rotational stagnation point flow impinging radially a permeable stretching/shrinking surface in a nanofluid using Tiwari and Das model, SCIENTIFIC REPORTS, Vol. 7, 40299, pp. 1-11, 2017.    [cuartila 1]
  • Juhász, I.,  Róth, A.Adjusting the energies of curves defined by control points, Computer-Aided Design, (article in press);     [cuartila 1]
  • Róth, A.,  Algorithm xyz: An OpenGL and C++ based function library for curve and surface modeling in a large class of extended Chebyshev spaces, ACM Transactions on Mathematical Software, (article in press);    [cuartila 1]