
Preface  Table of Contents  Supplementary Material 
 This book provides a concrete introduction to a number of topics in harmonic analysis, accessible at the early graduate level or, in some cases, at an upper undergraduate level. Necessary prerequisites to using the text are rudiments of the Lebesgue measure and integration on the real line. It begins with a thorough treatment of Fourier series on the circle and their applications to approximation theory, probability, and plane geometry (the isoperimetric theorem). Frequently, more than one proof is offered for a given theorem to illustrate the multiplicity of approaches. The second chapter treats the Fourier transform on Euclidean spaces, especially the author's results in the threedimensional piecewise smooth case, which is distinct from the classical GibbsWilbraham phenomenon of onedimensional Fourier analysis. The Poisson summation formula treated in Chapter 3 provides an elegant connection between Fourier series on the circle and Fourier transforms on the real line, culminating in Landau's asymptotic formulas for lattice points on a large sphere. Much of modern harmonic analysis is concerned with the behavior of various linear operators on the Lebesgue spaces \(L^p(\mathbb{R}^n)\). Chapter 4 gives a gentle introduction to these results, using the RieszThorin theorem and the Marcinkiewicz interpolation formula. One of the longtime users of Fourier analysis is probability theory. In Chapter 5 the central limit theorem, iterated log theorem, and BerryEsseen theorems are developed using the suitable Fourieranalytic tools. The final chapter furnishes a gentle introduction to wavelet theory, depending only on the \(L_2\) theory of the Fourier transform (the Plancherel theorem). The basic notions of scale and location parameters demonstrate the flexibility of the wavelet approach to harmonic analysis. The text contains numerous examples and more than 200 exercises, each located in close proximity to the related theoretical material. Originally published by Brooks Cole/Cengage Learning as ISBN: 9780534376604. Request an examination or desk copy. Readership Undergraduate and graduate students interested in Fourier transform and harmonic analysis. 


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