"Nonlinear Neumann equations driven by a nonhomogeneous differential op" by Shouchuan Hu and Nikolaos S. Papageorgiou
 

Nonlinear Neumann equations driven by a nonhomogeneous differential operator

Abstract

We consider a nonlinear Neumann problem driven by a nonhomogeneous nonlinear differential operator and with a reaction which is (p-1)-superlinear without necessarily satisfying the Ambrosetti-Rabinowitz condition. A particular case of our differential operator is the p-Laplacian. By combining variational methods based on critical point theory with truncation techniques and Morse theory, we show that the problem has at least three nontrivial smooth solutions, two of which have constant sign (one positive and the other negative).

Document Type

Article

DOI

https://doi.org/10.3934/cpaa.2011.10.1055

Keywords

nonlinear regularity, morse relation, moser iteration method., Mountain Pass theorem, critical group, C-condition

Publication Date

2011

Journal Title

Communications on Pure & Applied Analysis

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