Discrete Fourier Analysis

This textbook presents basic notions and techniques of Fourier analysis in discrete settings. Written in a concise style, it is interlaced with remarks, discussions and motivations from signal analysis. The first part is dedicated to topics related t

  • PDF / 2,399,007 Bytes
  • 175 Pages / 475.944 x 680.426 pts Page_size
  • 104 Downloads / 276 Views

DOWNLOAD

REPORT


Managing Editor M.W. Wong (York University, Canada)

Editorial Board Luigi Rodino (Università di Torino, Italy) Bert-Wolfgang Schulze (Universität Potsdam, Germany) Johannes Sjöstrand (Université de Bourgogne, Dijon, France) Sundaram Thangavelu (Indian Institute of Science at Bangalore, India) Maciej Zworski (University of California at Berkeley, USA)

Pseudo-Differential Operators: Theory and Applications is a series of moderately priced graduate-level textbooks and monographs appealing to students and experts alike. Pseudo-differential operators are understood in a very broad sense and include such topics as harmonic analysis, PDE, geometry, mathematical physics, microlocal analysis, time-frequency analysis, imaging and computations. Modern trends and novel applications in mathematics, natural sciences, medicine, scientific computing, and engineering are highlighted.

M.W. Wong

Discrete Fourier Analysis

M.W. Wong Department of Mathematics and Statistics York University 4700 Keele Street Toronto, Ontario M3J 1P3 Canada [email protected]

2010 Mathematics Subject Classification: 42-01, 47-01, 42A45, 47G30, 65T50, 65T60 ISBN 978-3-0348-0115-7 e-ISBN 978-3-0348-0116-4 DOI 10.1007/978-3-0348-0116-4 Library of Congress Control Number: 2011929860 © Springer Basel AG 2011 This work is subject to copyright. All rights are reserved, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, re-use of illustrations, broadcasting, reproduction on microfilms or in other ways, and storage in data banks. For any kind of use whatsoever, permission from the copyright owner must be obtained.

Cover design: deblik Printed on acid-free paper Springer Basel AG is part of Springer Science+Business Media www.birkhauser-science.com

Contents

Preface 1 The Finite Fourier Transform

vii 1

2 Translation-Invariant Linear Operators

17

3 Circulant Matrices

23

4 Convolution Operators

27

5 Fourier Multipliers

33

6 Eigenvalues and Eigenfunctions

37

7 The Fast Fourier Transform

41

8 Time-Frequency Analysis

45

9 Time-Frequency Localized Bases

53

10 Wavelet Transforms and Filter Banks

61

11 Haar Wavelets

67

12 Daubechies Wavelets

79

13 The Trace

87

14 Hilbert Spaces

95

15 Bounded Linear Operators

107

16 Self-Adjoint Operators

113

17 Compact Operators

117

vi

Contents

18 The Spectral Theorem

121

19 Schatten–von Neumann Classes

125

20 Fourier Series

129

21 Fourier Multipliers on S1

141

22 Pseudo-Differential Operators on S1

151

23 Pseudo-Differential Operators on Z

163

Bibliography

171

Index

175

Preface Fourier analysis is a prototype of beautiful mathematics with many-faceted applications not only in mathematics, but also in science and engineering. Since the work on heat flow of Jean Baptiste Joseph Fourier (March 21, 1768–May 16, 1830) in the treatise entitled “Th´eorie Analytique de la Chaleur”, Fourier series and Fourier transforms have gone from triumph to triumph, permeating mathematics such as partial differential equations, harmo