Chinese Quarterly Journal of Mathematics ›› 2015, Vol. 30 ›› Issue (3): 358-365.doi: 10.13371/j.cnki.chin.q.j.m.2015.03.006

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Symmetric Positive Solutions of Nonlinear Singular Second-order Three-point Boundary Value Problem

  

  1. College of Mathematics and Statistics, Northwest Normal University
  • Received:2014-03-13 Online:2015-09-30 Published:2020-11-20
  • About author:WU Hong-ping(1970-), female, native of Qingyang, Gansu, an associate professor of Northwest Normal University, engages in nonlinear analysis.
  • Supported by:
    Supported by the National Natural Science Foundation of China(11261053); Supported by the Natural Science Foundation of Gansu Province of China(1308RJZA125);

Abstract: In this paper, the second-order three-point boundary value problem {u"(t)+λa(t)f(t,u(t))=0,0<t<1,u(t)=u(1-t),u′(0)-u′(1)=u(1/2)is studied,where λ is a positive parameter,under various assumption on a and f,we establish intervals of the parameter λ,which yield the existence of positive solution,our proof based on Krasnosel’skii fixed-point theorem in cone. 

Key words: three-point boundary value problem, fuxed-point theorem, singular positive; solutions

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