Scientific meetings:

• International Workshop on Differential Geometry, Septembrie 1997, Sibiu, Romania

• Seminarul Itinerant Tiberiu Popoviciu de Ecuaţii Funcţionale, Aproximare si Convexitate, 22-26 Mai 2001, Cluj-Napoca, Romania, title of communication: ” Some existence results for differential equations of mixed type”

• ICNODEA 2001, International Conference on Nonlinear Operators, Differential Equations and Applications, Cluj-Napoca, Romania, 12-15 September 2001, title of the poster: “Wheeler-Feynman problem on compact interval", Studia Univ “Babes-Bolyai”

• ICNODEA 2004, International Conference on Nonlinear Operators, Differential Equations and Applications, Cluj-Napoca, Romania, 24-27 August 2004, title of the communication “Mixed functional differential equation with parameter”

• Urbino, Italia, summer school

• The 10-th International conference on Applied Mathematics, Computer Science and Mechanics, Cluj-Napoca/Baisoara, “Theodor Angheluta Seminar”, 31 May – 1 June 2006, title of the comunication : “An existence result for mixed-type functional integro-differential equation” (acam 2006)

• MACS6, 6^th Joint Conference of Mathematics and Computer Sciences, 12-15 July 2006, Pecs, Hungary, title of the communication: ” Some functional differential equations with both retarded and advanced arguments”

• ICNODEA 2007, International Conference on Nonlinear Operators, Differential Equations and Application, Cluj-Napoca, Romania, 4-7 July 2007, title of poster: “Periodic solutions for functional-differential equations of mixed type”

• International Symposiom, 20 Years of Mathematics in the Lucian Blaga University, Sibiu, 14-15 mai, 2010, Diana Otrocol, Veronica Ilea, Cornelia Revnic, An iterative method for a functional differential equation with mixed type argument

• 13^th International Symposium on Symbolic and Numerical Algorithms for Scientific Computing, sept 26-29, 2011, Timisoara, Romania, SYNASC 2011, Veronica Ilea, Diana Otrocol, Marcel Serban, Damain Trif, Step method for some integral equations

• ICNODEA, 5-8 july, 2011, Cluj-Napoca, Diana Otrocol, Veronica Ilea, An iterative method for a functional differential equation of second order with mixed type argument

• The 10-th IC-FPTA, July 9-15, 2012, Cluj-Napoca, Veronica Ana Ilea, Diana Otrocol, On a DV Ionescu's problem for functional-differential equations of second order

• Theodor Angheluta Seminar, Cluj-Napoca, August 29-31, 2013, Veronica Ilea, Diana Otrocol, On a functional-integral equation, via Picard operatorsTechnique

• International Conference of Applied Mathematics, Baia Mare, September 25-28, 2013, Diana Otrocol and Veronica Ana Ilea, Qualitative properties of functional differential systems