Journal of the
Korean Mathematical Society
JKMS

ISSN(Print) 0304-9914 ISSN(Online) 2234-3008

Article

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J. Korean Math. Soc. 2017; 54(3): 821-833

Online first article December 27, 2016      Printed May 1, 2017

https://doi.org/10.4134/JKMS.j160276

Copyright © The Korean Mathematical Society.

Infinitely many solutions for a class of the elliptic systems with even functionals

Q-Heung Choi and Tacksun Jung

Inha University, Kunsan National University

Abstract

We get a result that shows the existence of infinitely many solutions for a class of the elliptic systems involving subcritical Sobolev exponents nonlinear terms with even functionals on the bounded domain with smooth boundary. We get this result by variational method and critical point theory induced from invariant subspaces and invariant functional.

Keywords: elliptic system, deformation lemma, $(P.S.)^{*}$ condition, subcritical Sobolev exponents, variational method, critical point theory, invariant functional, invariant subspaces

MSC numbers: 35J47, 35J50, 35J57