1.

Record Nr.

UNINA9910299772403321

Autore

Dai Feng

Titolo

Analysis on h-Harmonics and Dunkl Transforms / / by Feng Dai, Yuan Xu ; edited by Sergey Tikhonov

Pubbl/distr/stampa

Basel : , : Springer Basel : , : Imprint : Birkhäuser, , 2015

ISBN

3-0348-0887-9

Edizione

[1st ed. 2015.]

Descrizione fisica

1 online resource (VIII, 118 p.)

Collana

Advanced Courses in Mathematics - CRM Barcelona, , 2297-0304

Disciplina

515.2433

Soggetti

Approximation theory

Harmonic analysis

Integral transforms

Operational calculus

Functional analysis

Approximations and Expansions

Abstract Harmonic Analysis

Integral Transforms, Operational Calculus

Functional Analysis

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Bibliographic Level Mode of Issuance: Monograph

Nota di contenuto

Preface -- Spherical harmonics and Fourier transform -- Dunkl operators associated with reflection groups -- h-Harmonics and analysis on the sphere -- Littlewood–Paley theory and the multiplier theorem -- Sharp Jackson and sharp Marchaud inequalities -- Dunkl transform -- Multiplier theorems for the Dunkl transform -- Bibliography.

Sommario/riassunto

As a unique case in this Advanced Courses book series, the authors have jointly written this introduction to h-harmonics and Dunkl transforms. These are extensions of the ordinary spherical harmonics and Fourier transforms, in which the usual Lebesgue measure is replaced by a reflection-invariant weighted measure. The theory, originally introduced by C. Dunkl, has been expanded on by many authors over the last 20 years. These notes provide an overview of what has been developed so far. The first chapter gives a brief recount of the



basics of ordinary spherical harmonics and the Fourier transform. The Dunkl operators, the intertwining operators between partial derivatives and the Dunkl operators are introduced and discussed in the second chapter. The next three chapters are devoted to analysis on the sphere, and the final two chapters to the Dunkl transform. The authors’ focus is on the analysis side of both h-harmonics and Dunkl transforms. The need for background knowledge on reflection groups is kept to a bare minimum.