Multiplicity for Symmetric Indefinite Functionals : Application to Hamiltonian and Elliptic Systems

@inproceedings{Felmer2008MultiplicityFS,
  title={Multiplicity for Symmetric Indefinite Functionals : Application to Hamiltonian and Elliptic Systems},
  author={Patricio Felmer and Zhi-qiang Wang},
  year={2008}
}
In this article we study the existence of critical points for certain superquadratic strongly indefinite even functionals appearing in the study of periodic solutions of Hamiltonian systems and solutions of certain class of Elliptic Systems. We first present two abstract critical point theorems for even functionals. These results are well suited for our applications, but they are interesting by their own. These theorems are then applied to the specific problems we mentioned, when the… CONTINUE READING

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