Multiple positive solutions of a singular gelfand type problem for second-order impulsive differential systems

  • Authors:
  • Eun Kyoung Lee;Yong-Hoon Lee

  • Affiliations:
  • -;-

  • Venue:
  • Mathematical and Computer Modelling: An International Journal
  • Year:
  • 2004

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Abstract

We study the existence of multiple positive solutions of a singular boundary valueproblem for second-order impulsive differential systems with real multiparameters. The existence phenomenon of positive solutions depends on the parameters and we give a full analysis about multiplicity, existence, and nonexistence with respect to the parameters. Proofs are mainly employed by the upper and lower solutions method for systems and the fixed-point index argument.