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    A necessary and sufficient condition of positive solutions for nonlinear singular differential systems with four-point boundary conditions

    Access Status
    Fulltext not available
    Authors
    Zhang, Xinguang
    Liu, L.
    Date
    2010
    Type
    Journal Article
    
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    Citation
    Zhang, X. and Liu, L. 2010. A necessary and sufficient condition of positive solutions for nonlinear singular differential systems with four-point boundary conditions. Applied Mathematics and Computation. 215: pp. 3501-3508.
    Source Title
    Applied Mathematics and Computation
    DOI
    10.1016/j.amc.2009.10.044
    ISSN
    0096-3003
    URI
    http://hdl.handle.net/20.500.11937/30685
    Collection
    • Curtin Research Publications
    Abstract

    In this paper, we concert with the existence of positive solution for the following nonlinear singular differential system with four-point boundary conditions{-x''=f(t,y),ax(0)-ßx'(0)=dx(1)+?x'(1)=0,-y''=g(t,x),y(0)=ay(?1),y(1)=by(?2),where 0<?1<?2<1,a,ß,d,?,a,b are nonnegative constants such that ?=ß?+a?+ad>0. By structuring upper and lower solution and using Schauder fixed point theorem, a necessary and sufficient condition for the existence of positive solutions is established. An example is worked out to illustrate our main result.

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