Multiplicity results for a class of semilinear elliptic equations on
Piero Montecchiari (1996)
Rendiconti del Seminario Matematico della Università di Padova
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Displaying similar documents to “Some perturbation results for non-linear problems”
Multiplicity results for a class of semilinear elliptic equations on
Prescribing -curvature on higher dimensional spheres
Khalil El Mehdi (2005)
Annales mathématiques Blaise Pascal
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We study the problem of prescribing a fourth order conformal invariant on higher dimensional spheres. Particular attention is paid to the blow-up points, i.e. the critical points at infinity of the corresponding variational problem. Using topological tools and a careful analysis of the gradient flow lines in the neighborhood of such critical points at infinity, we prove some existence results.
Index estimates and critical points of functionals not satisfying Palais-Smale
Vittorio Coti Zelati, Ivar Ekeland, Pierre-Louis Lions (1990)
Annali della Scuola Normale Superiore di Pisa - Classe di Scienze
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Periodic solutions of hamiltonian systems of 3-body type
A. Bahri, P. H. Rabinowitz (1991)
Annales de l'I.H.P. Analyse non linéaire
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The structure of the critical set in the general mountain pass principle
Guangcai Fang (1994)
Annales de la Faculté des sciences de Toulouse : Mathématiques
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Heteroclinic solutions for perturbed second order systems
Massimiliano Berti (1997)
Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti Lincei. Matematica e Applicazioni
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The existence of infinitely many heteroclinic orbits implying a chaotic dynamics is proved for a class of perturbed second order Lagrangian systems possessing at least 2 hyperbolic equilibria.