Positive solutions to superlinear semipositone periodic boundary value problems with repulsive weak singular forces

  • Authors:
  • Lin Xiaoning;Li Xiaoyue;Jiang Daqing

  • Affiliations:
  • School of Business Northeast Normal University Changchun 130024, P.R. China and School of Mathematics and Statistics Northeast Normal University Changchun 130024, P.R. China;-;-

  • Venue:
  • Computers & Mathematics with Applications
  • Year:
  • 2006

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Abstract

This paper is devoted to study the existence of positive solutions to the second-order semipositone periodic boundary value problem x'' + a(t)x = f(t,x), x(0) = x(1), x'(0) = x'(1). Here, f (t, x) may be singular at x = 0 and may be superlinear at x = +~. Our analysis relies on a fixed-point theorem in cones.