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>> Românã

Cristian Bereanu

Institutul de Matematica " Simion Stoilow" al Academiei Romane, Bucuresti, Romania

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Born: 1977

Interests: nonlinear analysis, topological degree, periodic solutions

My research papers are about topological degree and variational methods in the study of
some nonlinear problems.

Jean Mawhin was my thesis advisor, 2003-2006 at Univ.
Catholique de Louvain

Selected publications:
• C. Bereanu, D. Gheorghe, M. Zamora. Non-resonant boundary value problems with singular phi-Laplacian operators. NoDEA, 20, pp. 1365-1377, 2013.
• C. Bereanu, P. jebelean, P. J. Torres. Multiple positive radial solutions for a Dirichlet problem involving the mean curvature operator in Minkowski space . J. Functional Analysis, 265, pp. 644-659, 2013.
• C. Bereanu, P. Jebelean, J. Mawhin. Radial solutions for Neumann problems involving mean extrinsic curvature and periodic nonlinearities. Calc. Var. PDE, 46, pp. 113-122, 2013.
• C. Bereanu, P. Jebelean. Multiple critical points for a class of periodic lower semicontinuous functionals. Discrete Cont. Dynamical Syst. , 33, pp. 47-66, 2013.
• C. Bereanu, P. Jebelean, P. J. Torres. Positive radial solutions for Dirichlet problems with mean curvature operators in Minkowski space. J. Functional Analysis, 264, pp. 270-287, 2013.
• C. Bereanu, P. J. Torres. Existence of at least two solutions of the forced relativistic pendulum. Proc. Amer. Math. Soc. , 140, pp. 2713-2719, 2012.
• C. Bereanu, P. Jebelean, J. Mawhin. Multiple solutions for Neumann and periodic problems with singular phi-Laplacians. J. Functional Analysis, 261, pp. 3226-3246, 2011.
• C. Bereanu, P. Jebelean, J. Mawhin. Periodic solutions of pendulum-like perturbations of singular and bounded phi-Laplacians. J Dyn Diff Equat., , 22, pp. 463-471, 2010.
• C. Bereanu, P. Jebelean, J. Mawhin. Radial solutions for Neumann problems with phi-Laplacians and pendulum-like nonlinearities. Discrete Cont. Dynamical Systems, 28, pp. 637-648, 2010.
• C. Bereanu, P. Jebelean, J. Mawhin. Radial solutions for some nonlinear problems involving mean curvature operators in Euclidean and Minkowski spaces. Proc. Amer. Math. Soc. , 137, pp. 171-178, 2009.
• C. Bereanu. An Ambrosetti-Prodi-type result for periodic solutions of the telegraph equation. Proc. Roy. Soc. Edinburgh: Section A, 138, pp. 719-724, 2008.
• C. Bereanu, J. Mawhin. Multiple periodic solutions of ordinary differential equations with bounded nonlinearities and $phi$-Laplacian. NoDEA Nonlin. Diff. Eq. Appl. , 15, pp. 159-168, 2008.
• C. Bereanu, J. Mawhin. Existence and multiplicity results for some nonlinear problems with singular $phi$-Laplacian. J. Differential Equations, 243, pp. 536-557, 2007.
• C. Bereanu. Periodic solutions for delay competition systems and delay prey-predator systems. Adv. Nonlinear Stud. , 5, pp. 393-410, 2005.


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