School of Mathematical Sciences, Xuzhou Normal University, Xuzhou, Jiangsu 221116, China
Copyright © 2011 Xiaojie Lin. This is an open access article distributed under the
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Abstract
This paper deals with the existence of solutions for the following differential equation: , , subject to the boundary conditions: , , where , , is a continuous function, is a nondecreasing function with . Under the resonance condition , some existence results are given for the boundary value problems. Our method is based upon the coincidence degree theory of Mawhin. We also give an example to illustrate our results.