FIXED POINTS OF SUMS OF NONEXPANSIVE MAPS AND COMPACT MAPS

  • Bae, Jongsook (Department of Mathematics College of Science Myong Ji University) ;
  • An, Daejong (Department of Mathematics College of Science Myong Ji University)
  • Received : 2001.12.22
  • Published : 2002.02.28

Abstract

Let X be a Banach space satisfying Opial's condition, C a weakly compact convex subset of $X,F:C{\rightarrow}X$ a nonexpansive map, and let $G:C{\rightarrow}X$ be a compact and demiclosed map. We prove that F + G has a fixed point in C if $F+G:C{\rightarrow}X$ is a weakly inward map.

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