Fixed point theory in distance spaces

Resource Information

The work Fixed point theory in distance spaces represents a distinct intellectual or artistic creation found in University of Missouri Libraries. This resource is a combination of several types including: Work, Language Material, Books.

Label

Fixed point theory in distance spaces

Statement of responsibility

William Kirk, Naseer Shahzad

Creator

• Kirk, W. A

Contributor

• Shahzad, Naseer

Author

• Kirk, W. A
• Shahzad, Naseer

Subject

• Fixed point theory
• Topology

Language

eng

Summary

This is a monograph on fixed point theory, covering the purely metric aspects of the theory-particularly results that do not depend on any algebraic structure of the underlying space. Traditionally, a large body of metric fixed point theory has been couched in a functional analytic framework. This aspect of the theory has been written about extensively. There are four classical fixed point theorems against which metric extensions are usually checked. These are, respectively, the Banach contraction mapping principal, Nadler?s well known set-valued extension of that theorem, the extension of Banach's theorem to nonexpansive mappings, and Caristi?s theorem. These comparisons form a significant component of this book. This book is divided into three parts. Part I contains some aspects of the purely metric theory, especially Caristi's theorem and a few of its many extensions. There is also a discussion of nonexpansive mappings, viewed in the context of logical foundations. Part I also contains certain results in hyperconvex metric spaces and ultrametric spaces. Part II treats fixed point theory in classes of spaces which, in addition to having a metric structure, also have geometric structure. These specifically include the geodesic spaces, length spaces and CAT(0) spaces. Part III focuses on distance spaces that are not necessarily metric. These include certain distance spaces which lie strictly between the class of semimetric spaces and the class of metric spaces, in that they satisfy relaxed versions of the triangle inequality, as well as other spaces whose distance properties do not fully satisfy the metric axioms

Cataloging source

BTCTA

Index

index present

LC call number

QA329.9

LC item number

.K57 2014

Literary form

non fiction

Nature of contents

bibliography