Minimax theorems on manifolds via Ekeland variational principle.
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Cuesta, Mabel (2003)
Abstract and Applied Analysis
Robert Gulliver, J.-M. Coron (1989)
Journal für die reine und angewandte Mathematik
Han, Zhiqing, Wang, Suqin (2011)
Electronic Journal of Differential Equations (EJDE) [electronic only]
Paolo Caldiroli, Margherita Nolasco (1998)
Annales de l'I.H.P. Analyse non linéaire
Piero Montecchiari (1993)
Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti Lincei. Matematica e Applicazioni
We prove the existence of infinitely many geometrically distinct homoclinic orbits for a class of asymptotically periodic second order Hamiltonian systems.
Dahmane Bouafia, Toufik Moussaoui, Donal O'Regan (2020)
Mathematica Bohemica
We discuss the existence and multiplicity of positive solutions for a class of second order quasilinear equations. To obtain our results we will use the Ekeland variational principle and the Mountain Pass Theorem.
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