Publication date
January 2000
DOI Publisher
communications on pure and applied mathematics ISSN
0010-3640 Journal
0010-3640Abstract
In this paper, by introducing some new conditions, we study the nontrivial (multiple) solutions for resonant noncooperative elliptic systems. Our main ingredients are using a new version of Morse theory for strongly indefinite functionals and precisely computing the critical groups of the associated variational functionals at zero and at infinity. (C) 2000 John Wiley & Sons, Inc.Mathematics, AppliedMathematicsSCI(E)6ARTICLE111335-13495
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