Existence of solutions for a fully nonlinear fourth-order two-point boundary value problem |
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Authors: | Minghe Pei Sung Kag Chang |
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Institution: | 1. Department of Mathematics, Beihua University, JiLin City, 132013, P.R. China 2. Department of Mathematics, Yeungnam University, Kyongsan, 712-749, South Korea
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Abstract: | In this paper, we investigate the existence of solutions of a fully nonlinear fourth-order differential equation $$x^{(4)}=f(t,x,x',x'',x'''),\quad t\in 0,1]$$ with one of the following sets of boundary value conditions; $$x'(0)=x(1)=a_{0}x''(0)-b_{0}x'''(0)=a_{1}x''(1)+b_{1}x'''(1)=0,$$ $$x(0)=x'(1)=a_{0}x''(0)-b_{0}x'''(0)=a_{1}x''(1)+b_{1}x'''(1)=0.$$ By using the Leray-Schauder degree theory, the existence of solutions for the above boundary value problems are obtained. Meanwhile, as an application of our results, an example is given. |
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