Acta mathematica scientia,Series A

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MULTIPLICITY OF POSITIVE PERIODIC SOLUTIONS TO SECOND ORDER SINGULAR DIFFERENTIAL SYSTEMS

Lin Xiaoning   

  1. School of Business, Northeast Normal University, Changchun 130024, China;
    School of Mathematics and Statistics, Northeast Normal University, Changchun 130024, China
  • Received:2005-06-10 Revised:1900-01-01 Online:2006-12-25 Published:2006-12-25
  • Contact: Lin Xiaoning

Abstract: In this article, the author is devoted to establish the multiplicity of positive periodic solutions to second-order singular differential systems. It isproved that such a problem has at least two positive solutions under our reasonable conditions. The proof relies on a nonlinear alternative of Leray--Schauder type and Krasnoselskii fixed point theorem in cones.

Key words: Singular, Periodic solution, Leray-Schauder alternative, Fixed point theorem in cones

CLC Number: 

  • 34B16
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