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Proceedings of the American Mathematical Society

Published by the American Mathematical Society since 1950, Proceedings of the American Mathematical Society is devoted to shorter research articles in all areas of pure and applied mathematics.

ISSN 1088-6826 (online) ISSN 0002-9939 (print)

The 2020 MCQ for Proceedings of the American Mathematical Society is 0.85.

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On a conjecture of S. Reich
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by Peter Z. Daffer, Hideaki Kaneko and Wu Li PDF
Proc. Amer. Math. Soc. 124 (1996), 3159-3162 Request permission

Abstract:

Simeon Reich (1974) proved that the fixed point theorem for single-valued mappings proved by Boyd and Wong can be generalized to multivalued mappings which map points into compact sets. He then asked (1983) whether his theorem can be extended to multivalued mappings whose range consists of bounded closed sets. In this note, we provide an affirmative answer for a certain subclass of Boyd-Wong contractive mappings.
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Additional Information
  • Peter Z. Daffer
  • Affiliation: Department of Mathematics, Macon College, Macon, Georgia 31297
  • Email: pdaffer@cennet.mc.peachnet.edu
  • Hideaki Kaneko
  • Affiliation: Department of Mathematics and Statistics, Old Dominion University, Norfolk, Virginia 23529-0077
  • Email: kaneko@math.odu.edu
  • Wu Li
  • Affiliation: Department of Mathematics and Statistics, Old Dominion University, Norfolk, Virginia 23529-0077
  • Email: wuli@math.odu.edu
  • Received by editor(s): April 5, 1995
  • Communicated by: Dale Alspach
  • © Copyright 1996 American Mathematical Society
  • Journal: Proc. Amer. Math. Soc. 124 (1996), 3159-3162
  • MSC (1991): Primary 47H10
  • DOI: https://doi.org/10.1090/S0002-9939-96-03659-3
  • MathSciNet review: 1363454