Geometric Nonlinear Functional Analysis, Part 1

Front Cover
American Mathematical Soc., 1998 - Mathematics - 488 pages
This book presents a systematic and unified study of geometric nonlinear functional analysis. This area has its classical roots in the beginning of the twentieth century and is now a very active research area, having close connections to geometric measure theory, probability, classical analysis, combinatorics, and Banach space theory. The main theme of the book is the study of uniformly continuous and Lipschitz functions between Banach spaces (e.g., differentiability, stability, approximation, existence of extensions, fixed points, etc.). This study leads naturally also to the classification of Banach spaces and of their important subsets (mainly spheres) in the uniform and Lipschitz categories. Many recent rather deep theorems and delicate examples are included with complete and detailed proofs. Challenging open problems are described and explained, and promising new research directions are indicated.
 

Contents

Introduction
1
Fixed Points
51
Differentiation of Convex Functions
83
The RadonNikodým Property
99
11
114
21
122
31
144
40
153
Nonlinear Quotient Maps
261
Oscillation of Uniformly Continuous Functions on Unit
281
Oscillation of Uniformly Continuous Functions on Unit
301
Perturbations of Local Isometries
341
Perturbations of Global Isometries
359
Twisted Sums
373
Group Structure on Banach Spaces
391
Appendices
409

48
159
Lipschitz Classification of Banach Spaces
169
Uniform Embeddings into Hilbert Space
185
Uniform Classification of Spheres
197
Uniform Classification of Banach Spaces
219

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Page 9 - This research was supported by the Fund for the Promotion of Research at the Technion and by the Technion VPR Fund - L.
Page 464 - Petrie and JD Randall, Transformation Groups on Manifolds (1984) 83. K. Goebel and S. Reich, Uniform Convexity, Hyperbolic Geometry, and Nonexpansive Mappings (1984) 84.
Page 456 - Bruck and S. Reich, On the asymptotic behavior of nonexpansive mappings and semigroups in Banach spaces, Houston J.
Page 465 - DH Hyers, On the stability of the linear functional equation. Proc. Nat. Acad. Sci. USA 27 (1941), 222-224.

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