Boundary Value Problems
Volume 2008 (2008), Article ID 217636, 10 pages
Existence Result for a Class of Elliptic Systems with Indefinite Weights in
1College of Sciences, University of Shanghai for Science and Technology, Shanghai 200093, China
2Department of Applied Mathematics, Xidian University, Xi'an 710071, China
Received 31 October 2007; Accepted 4 March 2008
Academic Editor: Zhitao Zhang
Copyright © 2008 Guoqing Zhang and Sanyang Liu. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
We obtain the existence of a nontrivial solution for a class of subcritical elliptic systems with indefinite weights in . The proofs base on Trudinger-Moser inequality and a generalized linking theorem introduced by Kryszewski and Szulkin.