Advances in Difference Equations
Volume 2008 (2008), Article ID 840458, 15 pages
doi:10.1155/2008/840458
Positive solutions for multiparameter semipositone discrete boundary value problems via variational method
Jianshe Yu1
, Benshi Zhu1
and Zhiming Guo3
1College of Mathematics and Econometrics, Hunan University, Changsha 410082, China
3College of Mathematics and Information Sciences, Guangzhou University, Guangzhou 510006, China
Abstract
We study the existence, multiplicity, and nonexistence of positive solutions for multiparameter semipositone discrete boundary value problems by using nonsmooth critical point theory and subsuper solutions method.