Elementary Functional Analysis

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Large number of high-quality exercises Concise and gentle approach with a unique set of topics Historical details are spread throughout the book This book has been thoroughly class-tested This text is intended for a one-semester introductory course in functional analysis for graduate students and well-prepared advanced undergraduates in mathematics and related fields. It is also suitable for self-study, and could be used for an independent reading course for undergraduates preparing to start graduate school. While this book is relatively short, the author has not sacrificed detail. Arguments are presented in full, and many examples are discussed, making the book ideal for the reader who may be learning the material on his or her own, without the benefit of a formal course or instructor. Each chapter concludes with an extensive collection of exercises. The choice of topics presented represents not only the author's preferences, but also her desire to start with the basics and still travel a lively path through some significant parts of modern functional analysis. The text includes some historical commentary, reflecting the author's belief that some understanding of the historical context of the development of any field in mathematics both deepens and enlivens one's appreciation of the subject. The prerequisites for this book include undergraduate courses in real analysis and linear algebra, and some acquaintance with the basic notions of point set topology. An Appendix provides an expository discussion of the more advanced real analysis prerequisites, which play a role primarily in later sections of the book. Barbara MacCluer is Professor of Mathematics at University of Virginia. She also co-authored a book with Carl Cowen, Composition Operators on Spaces of Analytic Functions (CRC 1995). Content Level » Graduate Related subjects » Analysis

Author(s): Barbara MacCluer
Series: Graduate Texts in Mathematics, Vol. 253
Edition: 1st Edition. 2nd Printing. 2008
Publisher: Springer
Year: 2009

Language: English
Pages: C, ix+207, B

Cover


Front Matter

Graduate Texts in Mathematics 253

Elementary Functional Analysis

Copyright

Springer Science+Business Media, LLC 2009

ISBN 978-0-387-85528-8

e-ISBN 978-0-387-855295

DOI: 10.1007/978-0-387-855295

Library of Congress Control Number: 2008937759

Dedicated To Tom, Josh, and David

Preface

Content


Chapter 1 Hilbert Space Preliminaries

1.1 Normed Linear Spaces

1.2 Orthogonality

1.3 Hilbert Space Geometry

1.4 Linear Functionals

1.5 Orthonormal Bases

1.6 Exercises


Chapter 2 Operator Theory Basics

2.1 Bounded Linear Operators

2.2 Adjoints of Hilbert Space Operators

2.3 Adjoints of Banach Space Operators

2.4 Exercises


Chapter 3 The Big Three

3.1 The Hahn–Banach Theorem

3.2 Principle of Uniform Boundedness

3.3 Open Mapping and Closed Graph Theorems

3.4 Quotient Spaces

3.5 Banach and the Scottish Caf´e

3.6 Exercises


Chapter 4 Compact Operators

4.1 Finite-Dimensional Spaces

4.2 Compact Operators

4.3 A Preliminary Spectral Theorem

4.4 The Invariant Subspace Problem

4.5 Introduction to the Spectrum

4.6 The Fredholm Alternative

4.7 Exercises


Chapter 5 Banach and C*-Algebras

5.1 First Examples

5.2 Results on Spectra

5.3 Ideals and Homomorphisms

5.4 Commutative Banach Algebras

5.5 Weak Topologies

5.6 The Gelfand Transform

5.7 The Continuous Functional Calculus

5.8 Fredholm Operators

5.9 Exercises


Chapter 6 The Spectral Theorem

6.1 Normal Operators Are Multiplication Operators

6.2 Spectral Measures

6.3 Exercises


Back Matter

Appendix A Real Analysis Topics

A.1 Measures

A.2 Integration

A.3 Lp Spaces

A.4 The Stone–Weierstrass Theorem

A.5 Positive Linear Functionals on C(X)

References

Index


Back Cover