Article ID Journal Published Year Pages File Type
842884 Nonlinear Analysis: Theory, Methods & Applications 2009 6 Pages PDF
Abstract

We prove that the fixed point property holds in Banach spaces for which its unit sphere does not contain a triangle with sides of length larger than 4/3.

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Physical Sciences and Engineering Engineering Engineering (General)
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Three-dimensional convexity and the fixed point property for nonexpansive mappings
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