Abstract
Since bounded hyperconvex metric spaces have the fixed point property for nonexpansive mappings, it is natural to extend such a powerful result to asymptotically nonexpansive mappings. Our main result states that the approximate fixed point property holds in this case. The proof is based on the use, for the first time, of the ultrapower of a metric space.
Original language | British English |
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Pages (from-to) | 365-373 |
Number of pages | 9 |
Journal | Proceedings of the American Mathematical Society |
Volume | 132 |
Issue number | 2 |
DOIs | |
State | Published - Feb 2004 |
Keywords
- Asymptotically nonexpansive mappings
- Fixed point
- Hyperconvex
- Nonexpansive mappings