Department of Natural Sciences, Center for General Education, Chang Gung University, Taoyuan 333, Taiwan
Academic Editor: Martin D. Schechter
Copyright © 2010 Huei-li Lin. 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.
Assume that is a positive continuous function in and satisfies some suitable conditions. We prove that the quasilinear elliptic equation in admits at least two solutions in (one is a positive ground-state solution and the other is a sign-changing solution).