English

Existence and multiplicity of solutions for double-phase Robin problems

Analysis of PDEs 2020-06-03 v1

Abstract

We consider a double phase Robin problem with a Carath\'{e}odory nonlinearity. When the reaction is superlinear but without satisfying the Ambrosetti-Rabinowitz condition, we prove an existence theorem. When the reaction is resonant, we prove a multiplicity theorem. Our approach is Morse theoretic, using the notion of homological local linking.

Cite

@article{arxiv.2006.01454,
  title  = {Existence and multiplicity of solutions for double-phase Robin problems},
  author = {Nikolaos S. Papageorgiou and Vicenţiu D. Rădulescu and Dušan D. Repovš},
  journal= {arXiv preprint arXiv:2006.01454},
  year   = {2020}
}
R2 v1 2026-06-23T15:59:08.083Z