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Proceedings of the American Mathematical Society
Proceedings of the American Mathematical Society
ISSN 1088-6826(online) ISSN 0002-9939(print)

 

Stability of the fixed point property in Hilbert spaces


Author: Eva María Mazcuñán-Navarro
Journal: Proc. Amer. Math. Soc. 134 (2006), 129-138
MSC (2000): Primary 47H10; Secondary 46B20
Published electronically: August 16, 2005
MathSciNet review: 2170552
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Abstract: In this paper we prove that if $X$ is a Banach space whose Banach-Mazur distance to a Hilbert space is less than $\sqrt{\frac{5+\sqrt{17}}{2}}$, then $X$ has the fixed point property for nonexpansive mappings.


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Additional Information

Eva María Mazcuñán-Navarro
Affiliation: Departamento de Análisis Matemático, Universidad de Valencia, Doctor Moliner 50, 46100 Burjassot, Valencia, Spain
Address at time of publication: Departamento de Matemáticas, Escuela de Ingenierías Industrial e Informática, Universidad de León, Campus de Vegazana, 24071 León, Spain
Email: Eva.M.Mazcunan@uv.es, dememn@unileon.es

DOI: http://dx.doi.org/10.1090/S0002-9939-05-08344-9
PII: S 0002-9939(05)08344-9
Received by editor(s): December 17, 2003
Published electronically: August 16, 2005
Communicated by: Jonathan M. Borwein
Article copyright: © Copyright 2005 American Mathematical Society
The copyright for this article reverts to public domain 28 years after publication.