Integral boundary value problems with causal operators

  • Authors:
  • Yian Zhao;Guangxing Song;Xiaoyan Sun

  • Affiliations:
  • Department of Mathematics, China University of Petroleum, Qingdao, Shandong 266555, PR China;Department of Mathematics, China University of Petroleum, Qingdao, Shandong 266555, PR China;Department of Mathematics, China University of Petroleum, Qingdao, Shandong 266555, PR China

  • Venue:
  • Computers & Mathematics with Applications
  • Year:
  • 2010

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Abstract

This paper considers the existence of solutions for a class of integral boundary value problems with causal operators. We build a new comparison theorem. By utilizing the monotone iterative technique and the method of lower and upper solutions, we formulate sufficient conditions under which such problems have extremal or quasisolutions in a corresponding sector.