Multiplicity of sign-changing solutions for some four-point boundary value problem |
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| Authors: | Xian Xu,Donal O&rsquo Regan |
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| Affiliation: | 1. Department of Mathematics, Xuzhou Normal University, Xuzhou, Jiangsu, 221116, PR China;2. Department of Mathematics, National University of Ireland, Galway, Ireland |
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| Abstract: | ![]()
In this paper we obtain using Leray–Schauder degree theory some multiplicity results for sign-changing solutions of a four-point boundary value problem. We assume the existence of a pair of strict lower and upper solutions and some additional conditions on the nonlinear term f. |
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| Keywords: | 34B15 34B25 |
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