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A common generalization of metric, ultrametric and topological fixed point theorems

Ein Erratum zu diesem Artikel finden Sie hier: https://doi.org/10.1515/forum-2013-0051
  • Katarzyna Kuhlmann EMAIL logo und Franz-Viktor Kuhlmann
Veröffentlicht/Copyright: 25. September 2012

Abstract

We present a general fixed point theorem which can be seen as the quintessence of the principles of proof for Banach's fixed point theorem, ultrametric and certain topological fixed point theorems. It works in a minimal setting, not involving any metrics. We demonstrate its applications to the metric, ultrametric and topological cases, and to ordered abelian groups and fields.

Funding source: Silesian University at Katowice, Poland

Funding source: Canadian NSERC

The authors wish to thank the referee for his extremely careful reading and several very helpful and essential corrections and suggestions. They also thank Ed Tymchatyn, Murray Marshall and John Martin for inspiring discussions.

Received: 2012-5-2
Revised: 2012-8-3
Published Online: 2012-9-25
Published in Print: 2015-1-1

© 2015 by De Gruyter

Artikel in diesem Heft

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  3. Achievable sets in ℤn
  4. A criterion on oscillation and variation for the commutators of singular integral operators
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  8. Applications of a transcendence criterion for reciprocal sums of binary linear recurrences
  9. BSDE and generalized Dirichlet forms: The infinite dimensional case
  10. Faithful representations of infinite-dimensional nilpotent Lie algebras
  11. Locally finitely presented categories with no flat objects
  12. A common generalization of metric, ultrametric and topological fixed point theorems
  13. Correction to A common generalization of metric, ultrametric and topological fixed point theorems [Forum Math. 27 (2015), 303–327]
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