Harmonic Functions on Groups and Fourier Algebras

Harmonic Functions on Groups and Fourier Algebras
Author: Cho-Ho Chu
Publisher: Springer
Total Pages: 113
Release: 2004-10-11
Genre: Mathematics
ISBN: 3540477934

This research monograph introduces some new aspects to the theory of harmonic functions and related topics. The authors study the analytic algebraic structures of the space of bounded harmonic functions on locally compact groups and its non-commutative analogue, the space of harmonic functionals on Fourier algebras. Both spaces are shown to be the range of a contractive projection on a von Neumann algebra and therefore admit Jordan algebraic structures. This provides a natural setting to apply recent results from non-associative analysis, semigroups and Fourier algebras. Topics discussed include Poisson representations, Poisson spaces, quotients of Fourier algebras and the Murray-von Neumann classification of harmonic functionals.

Fourier and Fourier-Stieltjes Algebras on Locally Compact Groups

Fourier and Fourier-Stieltjes Algebras on Locally Compact Groups
Author: Eberhard Kaniuth
Publisher: American Mathematical Soc.
Total Pages: 321
Release: 2018-07-05
Genre: Mathematics
ISBN: 0821853651

The theory of the Fourier algebra lies at the crossroads of several areas of analysis. Its roots are in locally compact groups and group representations, but it requires a considerable amount of functional analysis, mainly Banach algebras. In recent years it has made a major connection to the subject of operator spaces, to the enrichment of both. In this book two leading experts provide a road map to roughly 50 years of research detailing the role that the Fourier and Fourier-Stieltjes algebras have played in not only helping to better understand the nature of locally compact groups, but also in building bridges between abstract harmonic analysis, Banach algebras, and operator algebras. All of the important topics have been included, which makes this book a comprehensive survey of the field as it currently exists. Since the book is, in part, aimed at graduate students, the authors offer complete and readable proofs of all results. The book will be well received by the community in abstract harmonic analysis and will be particularly useful for doctoral and postdoctoral mathematicians conducting research in this important and vibrant area.

Fourier Analysis on Finite Abelian Groups

Fourier Analysis on Finite Abelian Groups
Author: Bao Luong
Publisher: Springer Science & Business Media
Total Pages: 167
Release: 2009-08-14
Genre: Mathematics
ISBN: 0817649166

This unified, self-contained book examines the mathematical tools used for decomposing and analyzing functions, specifically, the application of the [discrete] Fourier transform to finite Abelian groups. With countless examples and unique exercise sets at the end of each section, Fourier Analysis on Finite Abelian Groups is a perfect companion to a first course in Fourier analysis. This text introduces mathematics students to subjects that are within their reach, but it also has powerful applications that may appeal to advanced researchers and mathematicians. The only prerequisites necessary are group theory, linear algebra, and complex analysis.

Harmonic Function Theory

Harmonic Function Theory
Author: Sheldon Axler
Publisher: Springer Science & Business Media
Total Pages: 266
Release: 2013-11-11
Genre: Mathematics
ISBN: 1475781377

This book is about harmonic functions in Euclidean space. This new edition contains a completely rewritten chapter on spherical harmonics, a new section on extensions of Bochers Theorem, new exercises and proofs, as well as revisions throughout to improve the text. A unique software package supplements the text for readers who wish to explore harmonic function theory on a computer.

Fourier Analysis on Groups

Fourier Analysis on Groups
Author: Walter Rudin
Publisher: Courier Dover Publications
Total Pages: 305
Release: 2017-04-19
Genre: Mathematics
ISBN: 0486821013

Self-contained treatment by a master mathematical expositor ranges from introductory chapters on basic theorems of Fourier analysis and structure of locally compact Abelian groups to extensive appendixes on topology, topological groups, more. 1962 edition.

Harmonic Analysis on the Heisenberg Group

Harmonic Analysis on the Heisenberg Group
Author: Sundaram Thangavelu
Publisher: Springer Science & Business Media
Total Pages: 204
Release: 2012-12-06
Genre: Mathematics
ISBN: 1461217725

The Heisenberg group plays an important role in several branches of mathematics, such as representation theory, partial differential equations, number theory, several complex variables and quantum mechanics. This monograph deals with various aspects of harmonic analysis on the Heisenberg group, which is the most commutative among the non-commutative Lie groups, and hence gives the greatest opportunity for generalizing the remarkable results of Euclidean harmonic analysis. The aim of this text is to demonstrate how the standard results of abelian harmonic analysis take shape in the non-abelian setup of the Heisenberg group. Thangavelu’s exposition is clear and well developed, and leads to several problems worthy of further consideration. Any reader who is interested in pursuing research on the Heisenberg group will find this unique and self-contained text invaluable.

Clifford Algebras in Analysis and Related Topics

Clifford Algebras in Analysis and Related Topics
Author: John Ryan
Publisher: CRC Press
Total Pages: 384
Release: 1995-10-23
Genre: Mathematics
ISBN: 9780849384813

This new book contains the most up-to-date and focused description of the applications of Clifford algebras in analysis, particularly classical harmonic analysis. It is the first single volume devoted to applications of Clifford analysis to other aspects of analysis. All chapters are written by world authorities in the area. Of particular interest is the contribution of Professor Alan McIntosh. He gives a detailed account of the links between Clifford algebras, monogenic and harmonic functions and the correspondence between monogenic functions and holomorphic functions of several complex variables under Fourier transforms. He describes the correspondence between algebras of singular integrals on Lipschitz surfaces and functional calculi of Dirac operators on these surfaces. He also discusses links with boundary value problems over Lipschitz domains. Other specific topics include Hardy spaces and compensated compactness in Euclidean space; applications to acoustic scattering and Galerkin estimates; scattering theory for orthogonal wavelets; applications of the conformal group and Vahalen matrices; Newmann type problems for the Dirac operator; plus much, much more! Clifford Algebras in Analysis and Related Topics also contains the most comprehensive section on open problems available. The book presents the most detailed link between Clifford analysis and classical harmonic analysis. It is a refreshing break from the many expensive and lengthy volumes currently found on the subject.

A Course in Abstract Harmonic Analysis

A Course in Abstract Harmonic Analysis
Author: Gerald B. Folland
Publisher: CRC Press
Total Pages: 317
Release: 2016-02-03
Genre: Mathematics
ISBN: 1498727158

A Course in Abstract Harmonic Analysis is an introduction to that part of analysis on locally compact groups that can be done with minimal assumptions on the nature of the group. As a generalization of classical Fourier analysis, this abstract theory creates a foundation for a great deal of modern analysis, and it contains a number of elegant resul