Acta mathematica scientia,Series A

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Existence of Positive Solutions for Fourth-Order Boundary

Value Problem with Variable Coefficients

Chai Guoqing;Huang Chaoyan   

  1. Department of Mathematics, Hubei Normal University, Huangshi 435002
  • Received:2005-08-18 Revised:2006-10-24 Online:2007-12-25 Published:2007-12-25
  • Contact: Chai Guoqing

Abstract: In this paper, by use of the fixed point
theorem, combining spectral theory of operator, the authors
establish the theorem on existence of positive solutions for
fourth-order boundary value problem with variable coefficient as
follows

{u(4)+B(t)uA(t)u=f(t,u),0<t<1,u(0)=u(1)=u(0)=u(1)=0

\noindent where A(t),B(t)C[0,1] and f(t,u):[0,1]×[0,)[0,) is continuous.

Key words: Positive solutions, Fixed point theorem, Operator spectra

CLC Number: 

  • 34B15
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