College of Physics and Mathematics, Changzhou University, Changzhou, Jiangsu 213164, China
Copyright © 2010 Chunmei Yuan et al. 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.
This paper deals with the existence of positive solutions for the elliptic problems with sublinear and superlinear nonlinearities in , in , on , where is a real parameter, . is a bounded domain in , and
and are some given functions. By means of variational method and super-subsolution method, we obtain some results about existence of positive solutions.