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EXISTENCE AND MULTIPLICITY OF POSITIVE SOLUTIONS TO NONLINEAR SEMIPOSITONE NEUMANN BOUNDARY VALUE PROBLEM |
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| Institution: | Ruipeng Chen , Yanqiong Lu (Dept. of Math., Northwest Normal University, Lanzhou 730070) |
| Abstract: | In this paper, we study a nonlinear semipositone Neumann boundary value problem. Under some suitable conditions, we prove the existence and multiplicity of positive solutions to the problem, based on Krasnosel’skii’s fixed point theorem in cones. |
| Keywords: | Krasnosel’skii’s fixed point theorem in cones semipositone Neumann boundary value problems positive solutions multiplicity |
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