Costa, David G.Tehrani, HosseinYang, Jianfu2021-07-142021-07-142006-01-24Costa, D. G., Tehrani, H., & Yang, J. (2006). On a variational approach to existence and multiplicity results for semipositone problems. <i>Electronic Journal of Differential Equations, 2006</i>(11), pp. 1-10.1072-6691https://hdl.handle.net/10877/13884In this paper we present a novel variational approach to the question of existence and multiplicity of positive solutions to semipositone problems in a bounded smooth domain of ℝN. We consider both the sublinear and superlinear cases.Text10 pages1 file (.pdf)enAttribution 4.0 InternationalVariational approachSemipositone problemsArticleThis work is licensed under a Creative Commons Attribution 4.0 International License.