EXISTENCE OF PERIODIC SOLUTIONS FOR QUASILINEAR ORDINARY DIFFERENTIAL EQUATIONS WITH DISCONTINUITIES

DOI10.1515/DEMA-2000-0408zbMath0985.34012OpenAlexW2783296794MaRDI QIDQ2708128

Nikolaos Matzakos, Nikolaos S. Papageorgiou

Publication date: 10 May 2002

Published in: Demonstratio Mathematica (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1515/dema-2000-0408

zbMATH Keywords

Sobolev spacePalais-Smale conditionupper and lower solutionscritical pointPoincaré inequalitytruncation functionsaddle point theoremlocally Lipschitz functiongeneralized subdifferentialpenalization functionPoincarẂittinger inequality

Mathematics Subject Classification ID

Nonlinear boundary value problems for ordinary differential equations (34B15)

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