Electron. J. Diff. Equ., Vol. 2012 (2012), No. 17, pp. 1-8.

Sing-changing solutions for nonlinear problems with strong resonance

Aixia Qian

Abstract:
Using critical point theory and index theory, we prove the existence and multiplicity of sign-changing solutions for some elliptic problems with strong resonance at infinity, under weaker conditions than in the references.

Submitted June 14, 2011. Published January 26, 2012.
Math Subject Classifications: 35J65, 58E05.
Key Words: Critical point theory; strong resonance; index theory; Cerami condition.

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Aixia Qian
School of Mathematic Sciences, Qufu Normal University
Qufu, Shandong 273165, China
email: qaixia@amss.ac.cn

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