Ding Xieping, He Yiran. Best Approximation Theorem for Set-Valued Mappings without Convex Values and Continuity[J]. Applied Mathematics and Mechanics, 1998, 19(9): 773-778.
Citation: Ding Xieping, He Yiran. Best Approximation Theorem for Set-Valued Mappings without Convex Values and Continuity[J]. Applied Mathematics and Mechanics, 1998, 19(9): 773-778.

Best Approximation Theorem for Set-Valued Mappings without Convex Values and Continuity

  • Received Date: 1997-01-30
  • Publish Date: 1998-09-15
  • In this paper,a new concept of weakly convex graph for set-valued mappings is introduced and studied.By using the concept,some new coincidence,the best approximation and fixed point theorems are obtained.
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