Grants, Publications, Visits

Research Grants

◆ member of the MCID research project: Nonlinear Differential Systems in Applied Sciences (NDSAS), project number: PNRR-III-C9-2022-I8, CF 22, 760112/ 23.05.2023, period 01.07.2023-30.06.2026, director Vicentiu Radulescu.

◆ director of the CNCS-UEFISCDI research mobility project PN-III-P1-1.1-MC-2018-1443.

◆ director of the CNCS-UEFISCDI research mobility project: PN-III-P1-1.1-MC-2017-2433.

◆ director of the CNCS-UEFISCDI young teams research project: Controllability and optimization problems, project number: PN-II-RU-TE-2014–1109.

◆ director of the CNCS-UEFISCDI research project: Numerical methods for controls of partial differential equations, PNII Grant, Capacitati Brancusi, Modul III, Bilateral proiect Romania-France, project number PN-II-CT-RO-FR 2012-1-1005, Nr. 700/19.04.2013, CF-128/19.04.2013. Members of the french team: Nicolae Cindea, Arnaud Munch. Members of the romanian team: Florin Ioan Bugariu, Sorin Daniel Micu, Ionel Roventa.

◆ member of the research project CNCS-UEFISCDI: Controllability, asymptotic behavior and numerical analysis for evolutionary processes, project number: PN-II-ID-PCE-2011-3-0257. Director: Sorin Daniel Micu.

◆ member of the research project CNCS-UEFISCDI: Mathematical methods applied in the study of mechanical systems, project number: PN-II-RU-TE-2014–4-0320. Director: Ionel Dumitrel Ghiba.

◆ Postdoctoral Fellowship: POSDRU/159/1.5/S/133255, University of Craiova, research project: Optimization problems in convex analysis and control theory, April 2014 - October 2015.

◆ member of the research project CNCS-UEFISCDI: Strongly Nonlinear Problems in Contact Mechanics, project number: PN-II-RU-TE-2011-3-0223. Director: Andaluzia-Cristina Matei.

◆ member of the research project : Sisteme cu parametri distribuiti: analiza, sinteza via functionale Liapunov pentru comanda, aproximare numerica oi implementare tip neurocomputing, Nr/data inregistrarii: 10C/27.01.2014 Finantator: Universitatea din Craiova, (2014). Director: Daniela Danciu.

◆ member of the research project "Control of some fluid-structure interaction", supported by Laboratoire Europeen Associe CNRS Franco-Roumain, LEA MATH-MODE Mathematiques and Modelisation, 2011.

◆ member of the CNCSIS research project: Problems of convex analysis, numerique analysis and control in the study of phisical complex systems, Grant PNII, IDEI, Nr. 420/2008. Director: Constantin P. Niculescu.

◆ member of the CNCSIS research project: Analysis and controls of the neliniar differential systems, 589/2007. Director: Vicentiu Radulescu.

◆ member of the CNCSIS Grant: Integration of master programs into the European higher educational framework by promoting interdisciplinary research via nonlinear analysis and evolution problems, Contract 26761/2005 theme 14, Grant 80. Director: Constantin P. Niculescu.

Romanian Academy award

★ Spiru Haret Prize of the Romanian Academy awarded for the paper: Particle supported control of a fluid-particle system, Journal de Mathématiques Pures et Appliquées 104 (2) (2015), 311-353 (in collaboration with: N. Cindea, S. Micu, M. Tucsnak).

Publications

◆ S. Micu, I. Rovența, L. E. Temereanca, The approximations of the controls for the 2D wave equation, submitted.

◆ G. M. Lachescu, M. Malin,  I. Rovența,  On the barycenter for discrete Steffensen Popoviciu measures on global NPC spaces, Aequationes Mathematicae  100 (3) (2026), https://doi.org/10.1007/s00010-025-01242-w.  

◆ G. M. Lachescu, M. Malin,  I. Rovența,  New Versions of Uniformly Convex Functions via Quadratic Complete Homogeneous Symmetric Polynomials, Results in Mathematics 80:179 (6) (2025), 1-15.  

◆ I. Roventa, L. E. Temereanca, M. A. Tudor, An application of moment method to uniform boundary controllability property of a semidiscrete 1-d wave equation with a lower rate vanishing viscosity, Journal of Differential Equations  389 (2024), 1-37.  

◆ N. Cindea, S. Micu, I. Roventa, M. A. Tudor, An approximation method for exact controls of vibrating systems with numerical viscosity, ESAIM-COCV 30 (2024), article number 33, 1-27.

◆ S. Micu, I. Rovența, M. Tucsnak, Time optimal controls and bang-bang property for systems describing plate vibrations,  Systems & Control Letters  182 (2023), 105670. DOI: 10.1016/j.sysconle.2023.105670.

◆ I. Roventa, L. A. Perez-Maqueda, A. Rotaru, Advancements in the integration and understanding of the Sestak-Berggren generalized conversion function for heterogeneous kinetics, Journal of Thermal Analysis and Calorimetry (2023), DOI: 10.1007/s10973-023-12727-8.

◆ I. Roventa, L. E. Temereanca, M. A. Tudor, Weighted Ingham’s type inequalities via the positivity of quadratic polynomials, Aequationes Mathematicae 98 (3)  (2024), 865-883.

◆ S. Micu, I. Rovența, Filtration techniques for the uniform controllability of semidiscrete hyperbolic equations, Handbook of Numerical Analysis 24 (2023), 261-296.

◆ M. Malin, G. M. Lachescu, I. Rovența,  New Versions of Uniformly Convex Functions via Quadratic Complete Homogeneous Symmetric Polynomials, Mediterranean Journal of Mathematics 20 (5) (2023), 1-20.

◆ G. M. Lachescu, I. Rovența, The Hardy-Littlewood-Polya inequality of majorization in the context of w-m-star-convex functions, Aequationes Mathematicae  97 (3) (2023), 523-535.

◆ I. Rovența, L. E. Temereanca, M. A. Tudor, A note on a algorithm studying the uniform controllability of a class of semidiscrete hyperbolic problems, Annals of the University of Craiova – Mathematics and Computer Science Series 50 (1) (2023), 224-238.

G. Leugering, S. Micu, I. Rovența, Y. Wang, Controllability properties of a system consisting of two elastic strings with tip-masses connected by an elastic spring, submitted, Journal of Evolution Equations 22 (3) (2022), 1-36.

◆ I. Rovența, L. E. Temereanca, M. A. Tudor, A note on weighted Ingham's inequality for families of exponentials with no gap, 24th International Conference on System Theory, Control and Computing (ICSTCC) (2020), 43-48, doi: 10.1109/ICSTCC50638.2020.9259770.

◆ S. Micu, I. Rovența, L. E. Temereanca, Approximation of the controls for the wave equation with a potential, Numerische Mathematik 144 (4) (2020), 835-887.

◆ P. Lissy, I. Rovența, Optimal approximation of internal controls for a wave-type problem with fractional Laplacian using finite-difference method, Mathematical Models and Methods in Applied Sciences (M3AS) 30 (3) (2020), 439-475.

◆ C. P. Niculescu, I. Rovența, Convex functions and Fourier coefficients, Positivity 24 (1) (2020), 129-139.

◆ M. Malin, I. Rovența, Ky Fan's inequality in the context of relative convexity, Journal of Nonlinear and Convex Analysis 21 (3) (2020), 629-637.

◆ P. Lissy, I. Rovența, Optimal filtration for the approximation of boundary controls for the one-dimensional wave equation, Mathematics of Computation, 88 (315) (2019), 273-291.

◆ I. Rovența, L. E. Temereanca, A note on the positivity of the even degree complete homogeneous symmetric polynomials, Mediterranean Journal of Mathematics, (2019), 16: 1.

◆ M. Malin, I. Rovența, M. Tudor, The Convergence of a Sequence of Iterated Polygons: A Discrete Combinatorial Analysis. In: Elaydi S., Pötzsche C., Sasu A. (eds) Difference Equations, Discrete Dynamical Systems and Applications. ICDEA 2017. Springer Proceedings in Mathematics & Statistics, vol 287. Springer, Cham (2019), 17 pages.

◆ N. Cindea, S. Micu, I. Rovența, Boundary controllability for finite-difference semi-discretizations of a clamped beam equation, SIAM Journal on Control and Optimization (SICON) 55 (2) (2017), 785-817.

◆ D. Y. Gao, P. Neff, I. Rovența, C. Thiel, On the convexity of nonlinear elastic energies in the right Cauchy-Green tensor, Journal of Elasticity 127 (2) (2017), 303-308.

◆ C. P. Niculescu, I. Rovența, Hardy-Litllewood-Polya theorem of majorization in the framework of generalized convexity, Carpathian Journal of Mathematics 33 (1) (2017), 87-95.

◆ I. Rovența, A note on majorization via perturbed minimizers, Journal of Mathematical Inequalities, 2017, accepted for publication.

◆ F.I. Bugariu, S. Micu, I. Rovența, Approximation of the controls for the beam equation with vanishing viscosity, Mathematics of Computation 85 (301) (2016), 2257-2303.

◆ S. Micu, I. Rovența, L.E. Temereanca, Approximation of the controls for the linear beam equation, Mathematics of Control, Signals and Systems 23 (2) (2016), 53 pages.

◆ N. Cindea, S. Micu, I. Rovența, Uniform Observability for a Finite Differences Discretization of a Clamped Beam Equation, IFAC-PapersOnLine, Volume 49, Issue 8, 2016, Pages 315–320, Elsevier, 2nd IFAC Workshop on Control of Systems Governed by Partial Differential Equations, http://dx.doi.org/10.1016/j.ifacol.2016.07.460. (ISI Proceedings)

◆ N. Cindea, S. Micu, I. Rovența, M. Tucsnak, Particle supported control of a fluid-particle system, Journal de Mathématiques Pures et Appliquées 104 (2) (2015), 311-353.

◆ C. P. Niculescu, I. Rovența, Relative Schur-convexity on global NPC spaces, Mathematical Inequalities and Applications 18 (3) (2015), 1111-1119.

◆ I. Rovența, Hardy-Littlewood-Polya's inequality and a new concept of weak majorization, Mediterranean Journal of Mathematics 13 (2) (2016), 573-583.

◆ C. P. Niculescu, I. Rovența, Relative Convexity and Its Applications, Aequationes Mathematicae, Springer Basel 89 (5) (2015), 1389-1400.

◆ M. Malin, I. Rovența, Some remarks on convex networks flows for K-spiders, Mathematical Problems in Engineering, Volume 2015, article ID 710516, 6 pages.

◆ I. F. Bugariu, N. Cindea, S. Micu, I. Rovența, Controllability of the space semi-discrete approximation for the beam equation, IFAC Proceedings Volumes, Volume 47, Issue 3, 2014, Pages 11369–11374, 19th IFAC World Congress, Elsevier. http://dx.doi.org/10.3182/20140824-6-ZA-1003.02286 (ISI Proceedings)

◆ D. Danciu, A. C. Matei, S. Micu, I. Rovența, Nonlinear Feedback Control and Artificial Intelligence Computational Methods applied to a Dissipative Dynamic Contact Problem, In ICINCO 2014 - 11th International Conference on Informatics in Control, Automation and Robotics, vol 1, (2014) ISBN: 978-989-758-039-0, pp. 528-539. (ISI Proceedings)

◆ C. P. Niculescu, I. Rovența, An approach of majorization in spaces with a curved geometry, Journal of Mathematical Analysis and Applications 411 (1) (2014) 119-129.

◆ I. Rovența, Generalized Equilibrium Problems Related to Ky Fan Inequalities, Abstract and Applied Analysis Volume 2014 (2014), Article ID 301901, 6 pages.

◆ F. Bugariu, I. Rovența, Small time uniform controllability of the linear one dimensional Schrodinger equation with vanishing viscosity, Journal of Optimization Theory and Applications 160 (3) (2014), 949-964.

◆ N. Cindea, S. Micu, I. Rovența, M. Tucsnak, Numerical aspects and controllability of a one dimensional fluid-structure model, IFAC Proceedings Volumes Volume 46, Issue 26, 2013, Pages 19-24, 1st IFAC Workshop on Control of Systems Governed by Partial Differential Equations, Elsevier, DOI: 10.3182/20130925-3-FR-4043.00035. (ISI Proceedings)

◆ C. P. Niculescu, I. Rovența, An extension of Chebyshev's algebraic inequality, Math. Reports 15 (65) (2013), No. 1, 91-95.

◆ S. Micu, I. Rovența, M. Tucsnak, Time optimal boundary controls for the heat equation, Journal of Functional Analysis, 263 (2012), 25-49.

◆ S. Micu, I. Rovența, Uniform controllability of the linear one dimensional Schrodinger equation with vanishing viscosity, ESAIM: Control, Optimisation and Calculus of Variations, 18 (2012), 277-293.

◆ I. Rovența, A note on Schur-concave functions, Journal of Inequalities and Applications, Volume 2012, No. 1, 2012:159.

◆ C. P. Niculescu, I. Rovența, Generalized convexity and the existence of finite time blow-up solutions for an evolutionary problem, Nonlinear Analysis: Theory, Methods & Applications, 75 (2012), 270-277.

◆ N. Cindea, S. Micu, I. Rovența, M. Tucsnak, Controllability of a nonlinear hybrid system, Annals of the University of Craiova - Mathematics and Computer Science Series, Vol 38, No 1 (2011), 35-48.

◆ I. Rovența, Large solutions to a singular weighted quasi-linear equations involving the p-Laplacian operator, Proceedings of ISCOPAM 2010, Editors: Ovidiu Carja and Ionel-Dumitrel Ghiba, Editura Universitatii "Alexandru Ioan Cuza" Iasi, 2011, pp. 209-220, ISBN 978-973-703-602-5 .

◆ A. Florea, I. Rovența, Some extensions of optimal Hardy's inequality using estimates of p-Laplacian, Journal of Computational Analysis and Applications 12 (2010), No. 3, 586-592.

◆ I. Rovența, Schur-convexity of a class of symmetric functions, Annals of the University of Craiova - Mathematics and Computer Science Series 37 (2010), No. 1, 12-18.

◆ C. P. Niculescu, I. Rovența, Large Solutions for Semilinear Parabolic Equations Involving Some Special Classes of Nonlinearities, Discrete Dynamics in Nature and Society, Volume 2010, Article ID 491023, 11 pages.

◆ C. P. Niculescu, I. Rovența, The Fan's inequality in metric spaces with non-positive curvature, Applied Mathematics Letters, 22 (2009), 1529-1533.

◆ C. P. Niculescu, I. Rovența, Schauder fixed point theorem in metric spaces with non-positive curvature, Fixed Point Theory and Applications, volume 2009 , article ID 906727, 8 pages, ISSN 1687-1820.

◆ C. P. Niculescu, I. Rovența, The existence of a global attractor for a class of rational maps, Annals of the Academy of the Romanian Scientists, Series on Mathematics and its Applications 1, No. 2, 2009.

◆ I. Rovența, Boundary asymptotic and uniqueness of solution for a problem with p(x)-Laplacian, Journal of Inequalities and Applications, Journal of Inequalities and Applications, Volume 2008, 14 pages.

◆ M. Mihailescu, I. Rovența, Existence and multiplicity of radial solutions for an elliptic boundary value problem on an annulus, Bull. Math. Soc. Sci. Math. Roumanie 50 (2007), No. 4, 331-341.

◆ C. P. Niculescu, I. Rovența, Fan's inequality in the context of Mp-convexity, in vol. Applied Analysis and Differential Equations, Proc. ICAADE 2006, pp. 267-274, World Scientific, Singapore, 2007 (Editors, Ovidiu Carja and Ioan I. Vrabie) ISBN 978-981-270-594-5, ISSN 981-270-594-5.

◆ I. Rovența, A generalization of Ky Fan's theorem, Proceedings of the International Conference of Young Scientists, afiliated to the International Conference "Computer Algebra in Scientific Computing-2006" (CASC 2006), Chisinau, Proc. CASC 2006, pp 181-186, ISBN 978- 9975-70-677-3.

◆ I. D. Ghiba, C. P. Niculescu, I. Rovența, A finite difference approach of Korn’s inequalities, work in progress.

Books

◆ I. Rovența, Recent trends in majorization theory. Applications to wireless communications, Editura Universitaria Craiova, 2015, 111 pages.

Researh Stages

◆ Invited professor at University of Clermont Auvergne, February 2025.

◆ Invited professor at City University of Hong Kong, February – March 2023.

◆ Professeur invité CEREMADE Université Paris Dauphine,  August -September  2021.

◆ Stage to Universite de Bordeaux, Institut de Mathematiques de Bordeaux, August 26- September 1, 2018, supported by CNCS-UEFISCDI research project PN-III-P1-1.1-MC-2018-1443.

◆ Stage at Universite Clermont Auvergne, Laboratoire de mathematiques Blaise Pascal, February 1- 18, 2018, supported by CNCS-UEFISCDI research project PN-III-P1-1.1-MC-2017-2433.

◆ Stage at Universite Paris Dauphine, CEREMADE, UMR CNRS 7534, June 25 - July 1, 2016, supported by CNCS-UEFISCDI research project PN-II-RU-TE-2014–1109.

◆ Stage at Universite Clermont Auvergne, Laboratoire de mathematiques Blaise Pascal, February 7- 20, 2017, supported by CNCS-UEFISCDI research project PN-II-RU-TE-2014–1109.

◆ Stage at Universite Blaise Pascal, Laboratoire de Mathematiques de Clermont-Ferrand, February 4-18, 2016, supported by „Programme des Professeur Invites Courts Sejours”.

◆ Stage at Universitat Duisburg-Essen, Fakultat fur Mathematik, Nichtlineare Analysis und Modellierung, January 31- February 28, 2015, supported by research project "Burse Universitare în România prin Sprijin European pentru Doctoranzi si Post-doctoranzi (DOC-POSDOC)”, ID CONTRACT POSDRU/159/1.5/S/133255.

◆ Stage at Universite Blaise Pascal, Laboratoire de Mathematiques de Clermont-Ferrand, November 9-18, 2014, suported by CNCS-UEFISCDI bilateral research project, PNII Capacitati Brancusi, Romania-France, PN-II-CT-RO-FR 2012-1-1005.

◆ Stage at Universite Blaise Pascal, Laboratoire de Mathematiques de Clermont-Ferrand, November 4-11, 2013, suported by CNCS-UEFISCDI bilateral research project, PNII Capacitati Brancusi, Romania-France, PN-II-CT-RO-FR 2012-1-1005.

◆ Stage at Universite Blaise Pascal, Laboratoire de Mathematiques de Clermont-Ferrand, May 25-30, 2012, suported by CNCS-UEFISCDI research project PN-II-RU-TE-2011-3-0223.

◆ Stage at Universite Henri Poincare Nancy 1, Institute Elie Cartan, Nancy, France, September 20 - October 2, 2011, suported by Laboratoire Europeen Associe CNRS Franco-Roumain, LEA MATH-MODE Mathematiques and Modelisation, 2011.

◆ Stage at Universite Henri Poincare Nancy 1, Institute Elie Cartan, Nancy, France, June 6-15, 2010, suported by CNCSIS Grant, PNII, Capacitati Brancusi, Modul III, bilateral project Romania-France, Nr. 206/2009.

◆ Stage at Control of Partial and Differential Equations and Applications Trimester, Centre Emile Borel, Institute Henri Poincare, Paris, France, November 2-26, 2010, suported by CNCSIS Grant, PNII, IDEI, Nr. 420/2008.

◆ Stage at Universite Henri Poincare Nancy 1, Institute Elie Cartan, Nancy, France, June 6-15, 2010, suported by CNCSIS Grant, PNII, Capacitati Brancusi, Modul III, bilateral project Romania-France, Nr. 206/2009.

◆ Stage at Universite Henri Poincare Nancy 1, Institute Elie Cartan, Nancy, France, June 8-20, 2009, suported by CNCSIS Grant, PNII, Capacitati Brancusi, Modul III, bilateral project Romania-France, Nr. 206/2009.

◆ Stage at Mathematik Fakultat of Dortmund, Dortmund, Germany, suported by Socrates Erasmus program, October 2003 -February 2004.

Conferences, Workshops and Summer Schools, Plenary Lectures

◆ Seminarul Stiintific: Analiza Neliniara, EDP si Modelare Matematica, Universitatea Al. I. Cuza din Iasi,  The approximation of boundary controls for wave equation via moments problem and Ingham’s inequalitiy, 24 noiembrie 2025, invited talk.

◆ 10th Regional French-Romanian Summer School on Applied Mathematics, Sinaia, Romania,  Fourier Techniques and Observability Properties for Partial Differential Equations, 14-17 July 2025, invited lectures.

◆ Complexity in Mathematics, Physics, Mechanics, Automation, Across workshop serios on science and society aimed at promoting the role of science in society, Transdisciplinary approaches to complex systems, Craiova, June 19-21, 2025, On the approximation of boundary control for the wave equation, invited talk.

◆ Laboratoire de Mathematique Blaise Pascal, Seminaire EDPAN (Équipe Équations aux dérivées partielles et analyse numérique), 13 February 2025, On the approximation of boundary controls for 2D wave equation in a rectangle, invited talk.

◆ Third edition of the NA-NM-AT conference series organized by Tiberiu Popoviciu Institute of Numerical Analysis (Romanian Academy), November 4-7, as part of the 2024 edition of the Cluj Academic Days, Uniform boundary controllability property of the semi-discrete 1D wave equation,  invited talk.

◆ XVIeme COLLOQUE FRANCO-ROUMAIN DE MATHÉMATIQUES APPLIQUÉES, organizarea minisimpozionului „Contrôle des EDP”, UPB Bucharest, 26-30 august 2024.

◆ International Conference on Elliptic and Parabolic Problems: GAETA 2024, 20-24 mai 2024, Approximation of the boundary controls for the 2 − D wave equation in a rectangle, participare la conferinta, invited talk.

◆ The International Conference on Mathematics and Computer Science (MACOS), FACULTY OF MATHEMATICS AND COMPUTER SCIENCE, TRANSILVANIA UNIVERSITY OF BRASOV,  Brasov, 13-15 June 2024, Boundary controls approximation for the 2D wave equation in rectangular domains, invited talk.

◆ The tenth Congress of Romanian Mathematicians, Pitesti, June 30 - July 5, 2023, The approximation of the controls for the wave equation with a lower rate numerical vanishing viscosity, invited talk.

◆ MACOS 2022, University Transilvania of Brasov, September 16-18, 2022, The approximation of controls using moment problems, contributed talk.

◆ 24th International Conference on System Theory, Control and Computing (ICSTCC) October 8-10, 2020, A note on weighted Ingham's inequality for families of exponentials with no gap, contributed talk.

◆ Dynamics, Equations and Applications (DEA 2019), AGH University of Science and Technology, September 16 - 20, 2019, Krakow, Poland, Optimal approximation of internal controls for a wave-type problem with fractional laplacian using finite-difference method, invited talk, DEA 2019.

◆ 8th Workshop on Partial Differential Equations, Optimal Design and Numerics, August 16 - 30, 2019, Benasque, Spain, Optimal approximation of internal controls for a wave-type problem with fractional Laplacian, Thematic session on Numerics and control, contributed talk.

◆ XIV-ème colloque franco-roumain de mathématiques appliquées, August 27-31, 2018, Université de Bordeaux, France, organiser (with Pierre Lissy) of the session: Contrôle des EDP.

◆ Atelier de travail en Théorie du potentiel et EDP non-linéaires, l’Institut de Mathématique "Simion Stoilow" de l'Académie Roumaine, November 22 - 23 (2018), Approximation optimale des contrôles internes pour une problème de type hyperbolique ave Laplacien fractionnel, invited talk.

◆ First Romanian Itinerant Seminar on Mathematical Analysis and its Applications (RISMAA), Babes-Bolyai University, Romania, 19-21 April, 2018, Optimal filtration for the approximation of controls, invited talk.

◆ 7th Workshop on Partial Differential Equations, Optimal Design and Numerics, August 20 - September 1, 2017, Benasque, Spain, Approximation of boundary controls for the wave equation, contributed talk.

◆ 23rd International Conference on Difference Equations and Applications (ICDEA 2017), West University of Timisoara, Romania, 24-28 July, 2017, The approximation of boundary controls for the one-dimensional wave equation, invited talk.

◆ Plenary lecture at Laboratoire de Mathematiques de Clermont-Ferrand, Universite Blaise Pascal, Optimal filtration for approximation of boundary controls for the one-dimensional wave equation using finite differences, February 14, 2017.

◆ XIII − eme Colloque Franco − Roumain de Mathematiques Appliquees, Iasi, August, 25-29, 2016, Session: Analysis and control for PDE’s, Approximation of the controls for hinged and clamped beam equations, invited talk.

◆ Conference of Applied and Industrial Mathematics, CAIM 2016, Section: PDE’s with applications in Mechanics, Biology, Craiova, September 17-19, 2016, Approximation of the boundary controls for the wave equation, contributed talk.

◆ Emerging trends in Applied Mathematics and Mechanics, ETAMM 2016, May 30 – June 3, Perpigan France, Approximation of the controls for hinged and clamped beam equations, contributed talk.

◆ Diaspora in Cercetarea Stiintifica ̧si Invatamantul Superior din Romania - Diaspora ̧si prietenii sai 2016 Workshop: Sisteme Dinamice. Teoria ̧si aplicatii. Timisoara, April 25-27, 2016, Approximation of the controls for the beam equation, invited plenary talk.

◆ ICAMNM 2016, Craiova 15-17 April, Approximation of the controls for beam equation with different boundary conditions, contributed talk.

◆ Conférence Contrôle des EDP et applications, CIRM, Marseille, November 9-13, 2015.

◆ Journées EDP Rhône-Alpes-Auvergne, Université Blaise Pascal, Clermont-Ferrand, November 19-20, 2015.

◆ Plenary lecture at Universitat Duisburg-Essen, Fakultat fur Mathematik, Nichtlineare Analysis und Modellierung, Oberseminar analysis, Majorization in spaces with global nonpositive curvature, February 19, 2015.

◆ Plenary lecture at Universitat Duisburg-Essen, Fakultat fur Mathematik, Nichtlineare Analysis und Modellierung, Oberseminar analysis, Relative convexity and relative Schur convexity with applications, February 13, 2015.

◆ 19th World Congress of the International Federation on Automatic Control, Cape Town, South Africa, August 24-29, 2014, communication with the title "Controllability of the semi discrete space approximation for the beam equation", contributed talk.

◆ Mathematical Inequalities and Applications, Trogir, Croatia, June 22-26, 2014, communication with the title "An Approach of Schur convex-concave functions", contributed talk.

◆ The Twelfth Conference on Nonlinear Analysis and Applied Mathematics, Targoviste, Romania, June 13-14, 2014, communication with the title "A new approach on weak majorization and applications", contributed talk.

◆ The Joint Meeting on Quantum Field Theory and Nonlinear Dynamics, communication with the title "The controllability of a system modeling the motion of a swimmer moving in a viscous fluid", Sinaia September, 24-27, 2014, contributed talk in Nonlinear Dynamics session.

◆ Joint International Conference of Doctoral and Post-Doctoral Researchers, communication with the title "The convex functions on spiders", Craiova September, 12-13, 2014, contributed talk in Exact Sciences session.

◆ Plenary lecture at Laboratoire de Mathematiques de Clermont-Ferrand, Universite Blaise Pascal, Controllability of a one dimensional fluid-structure model, November 9, 2013.

◆ Ist IFAC Workshop on Control Systems Modeled by Partial Differential Equations, CPDE 2013, September 25-27, Institute Henri Poincare, Paris, France, comunication with the title "Numerical aspects and controllability of a one dimensional fluid-structure model", regular talk in Controllability and observability session.

◆ 21th Conference on Applied and Industrial Mathematics, September19-22, Bucharest 2013, communication with the title "Generalized equilibrium problems related to Ky-Fan's inequalities", regular talk in Operational research session.

◆ 5th Workshop on Partial Differential Equations, Optimal Design and Numerics, August 25 - September 5, 2013, Benasque, Spain, comunication with the title "Controllability of a fluid-structure model", regular talk in Fluid-structure interaction thematic session.

◆ Thematic school of the GDRE ConEDP: Control of PDE's interactions and applications challenges, November 5-9, Centre International de Rencontres Mathematiques (CIRM), Luminy, France.

◆ Spring School in Nonlinear Partial Differential Equations, Universite Libre de Bruxelles, May 30–June 6, 2012.

◆ 33th International Summer School of Automatic Control, Modeling and Control of Distributed Parameter Systems, Gipsa-Lab Departament Automatique, Grenoble, France, September 10-14, 2012.

◆ 41th Congres d’Analyse Numerique CANUM 2012, Superbesse, Puy-de-Dome May 21-25, Laboratoire de Mathematiques de Clermont-Ferrand, communication with the title "On the solvability of an abstract variational system”.

◆ 10th International Symposium on Generalized Convexity/Monotonicity, Cluj, August 22-27, 2011, communication with the title "An Applications of generalized convexity to the existence of finite time blow-up solutions for an evolutionary problem".

◆ Workshop on "Partial differential equations, optimal design and numerics" 2011, August 28- September 09, 2011, Centro de Ciencias de Benasque Pedro Pasqual, Organizers: G. Buttazzo (U. Pisa) and E. Zuazua (BCAM).

◆ 7th Congress of Romanian Mathematicians, Brasov, June 29 - July 5, 2011, communication with the title "Generalized convexity and the existence of finite time blow-up solutions for semilinear parabolic equations".

◆ International Student Conference on pure and Applied Mathematics, ISCOPAM 2010, Iasi, July 12-16, 2010, communication with the title "Uniform controllability of the linear one dimensional Schrodinger equation with viscosity".

◆ Sesiunea stiintifica de toamna 2010 a Academiei Oamenilor de Stiinta din Romania, Universul stiintei acasa la romani, Mioveni, 22-24 septembrie, 2010, comunicarea cu titlul "Controlabilitatea uniforma a ecuatiei liniare de tip Schrodinger cu un termen de vascozitate".

◆ National Mathematics Conference for University Students, Iasi, July 2009, communication with the title "Schauder fixed point theorem in global NPC spaces".

◆ Mathematics and Informatics Technologies: Research and Education, MITRE-2008, Chisinau, October 1-4, 2008, communication with the title "Fixed point theorems in context of spaces with non-positive curvature ".

◆ National Mathematics Conference for University Students, Iasi, July 2008, communication with the title "Functii Schur-convexe. Inegalitati simetrice".

◆ 10th International Conference on Discrete Mathematics Convexity and Graph Theory, Universitat Dortmund, Germany, July 14-18, 2007, communication with the title "Fan's inequality in metric spaces with nonpositive curvature".

◆ 6th Congress of Romanian Mathematicians, Bucharest, June 28 - July 4, 2007, communication with the title "The existence of a global atractor for a class of rational maps".

◆ National Mathematics Conference for University Students, Iasi, July, 2007, communication with the title "Existenta unui atractor global pentru o clasa de aplicatii rationale".

◆ International Conference on Applied Analisys and Differential Equations, (ICAADE-2006), Iasi, September 4-9, 2006, communication with the title " Fan's inequality in the context of Mp-convexity".

◆ International Conference on Applied Analisys and Differential Equations, (ICAADE-2006), Iasi, September 4-9, 2006, communication with the title "Existence and multiplicity of radial solutions for an elliptic boundary value problem on an annulus".

◆ CERCMS International Conference of Young Scientist affiliated to the International Conference Computer Algebra in Scientific Computing-2006, Proc. CASC 2006, communication with the title "A Generalization of Ky Fan's Theorem".

◆ National Mathematics Conference for University Students, Iasi, July, 2006, communication with the title "O geneneralizare a Teoremei Ky Fan in cazul Mp Convexitatii".

◆ National Mathematics Conference for University Students, Iasi, May,2005, communication with the title "Echilibrul Nash si Algoritmul Lemke-Howson".