Interpolation and Sidon Sets for Compact Groups

Interpolation and Sidon Sets for Compact Groups PDF Author: Colin Graham
Publisher:
ISBN: 9781461453932
Category :
Languages : en
Pages : 268

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Book Description

Interpolation and Sidon Sets for Compact Groups

Interpolation and Sidon Sets for Compact Groups PDF Author: Colin Graham
Publisher:
ISBN: 9781461453932
Category :
Languages : en
Pages : 268

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Book Description


Interpolation and Sidon Sets for Compact Groups

Interpolation and Sidon Sets for Compact Groups PDF Author: Colin Graham
Publisher: Springer Science & Business Media
ISBN: 1461453925
Category : Mathematics
Languages : en
Pages : 262

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Book Description
Understanding special sets of integers was classically of interest to Hadamard, Zygmund and others, and continues to be of interest today. This book is a modern treatment of the subject of interpolation and Sidon sets. It is a unique book, aimed at both new and experienced researchers. In particular, this is the only book in English which features a complete treatment of the Pisier-Bourgain results on Sidon sets, many of which were originally in French, in hard to access publications. Applications of the P-B results, due to Pisier, Bourgain, Ramsey, and the authors are included. The book introduces the reader to a wealth of methods important in mathematics today: topological, probabilistic, algebraic, combinatoric and analytic. It prepares students to perform research in the area and provides both exercises and open problems. The book also provides direction to the literature for topics it does not fully cover. The book is self-contained, with appendices covering results that are required, but not necessarily in the pre-requisite background of a student ready to choose an area for research in harmonic analysis. ​

50 Years with Hardy Spaces

50 Years with Hardy Spaces PDF Author: Anton Baranov
Publisher: Birkhäuser
ISBN: 3319590782
Category : Mathematics
Languages : en
Pages : 477

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Book Description
Written in honor of Victor Havin (1933–2015), this volume presents a collection of surveys and original papers on harmonic and complex analysis, function spaces and related topics, authored by internationally recognized experts in the fields. It also features an illustrated scientific biography of Victor Havin, one of the leading analysts of the second half of the 20th century and founder of the Saint Petersburg Analysis Seminar. A complete list of his publications, as well as his public speech "Mathematics as a source of certainty and uncertainty", presented at the Doctor Honoris Causa ceremony at Linköping University, are also included.

Nigel J. Kalton Selecta

Nigel J. Kalton Selecta PDF Author: Fritz Gesztesy
Publisher: Birkhäuser
ISBN: 3319187996
Category : Mathematics
Languages : en
Pages : 778

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Book Description
This is the second part of a two volume anthology comprising a selection of 49 articles that illustrate the depth, breadth and scope of Nigel Kalton’s research. Each article is accompanied by comments from an expert on the respective topic, which serves to situate the article in its proper context, to successfully link past, present and hopefully future developments of the theory and to help readers grasp the extent of Kalton’s accomplishments. Kalton’s work represents a bridge to the mathematics of tomorrow, and this book will help readers to cross it. Nigel Kalton (1946-2010) was an extraordinary mathematician who made major contributions to an amazingly diverse range of fields over the course of his career.

Sidon and Kronecker-like Sets in Compact Abelian Groups

Sidon and Kronecker-like Sets in Compact Abelian Groups PDF Author: Xu Yang
Publisher:
ISBN:
Category : Compact Abelian groups
Languages : en
Pages : 129

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Book Description
Let $G$ be a compact abelian group and $\Ga$ be its discrete dual group. In this thesis we study various types of interpolation sets. A subset $E \subset \Ga$ is Sidon if every bounded function on $E$ can be interpolated by the Fourier transform of a finite complex measure. Sidon sets have been extensively studied, and one significant breakthrough, that Sidonicity is equivalent to proportional quasi-independence, was proved by Bourgain and Pisier during the early 80s. In this thesis we will give a detailed demonstration of Pisier's approach. We also seek for possible extensions of Pisier's theorems. Based on Pisier's techniques, we will show Sidonicity is equivalent to proportional independence of higher degrees and minimal constants. A subset $E \subset \Ga$ is $\e$-Kronecker if every function on $E$ with range in the unit circle can be interpolated by a continuous character on $\Ga$ with an error of $\e$. We will prove some interesting properties of $\e$-Kronecker sets and give an estimation of the Sidon constant of such sets. Generalizations of Kronecker sets include binary Kronecker sets and $N$-pseudo-Rademacher sets. We compute the binary Kronecker constants of some interesting examples. For $N$-pseudo-Rademacher sets, we give a characterization of such sets, describe their structures and prove the existence of large $N$-pseudo-Rademacher sets.

Extension Problems and Stable Ranks

Extension Problems and Stable Ranks PDF Author: Raymond Mortini
Publisher: Springer Nature
ISBN: 3030738728
Category : Mathematics
Languages : en
Pages : 2197

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Book Description
This self-contained encyclopedic monograph gives a detailed introduction to Bézout equations and stable ranks, encompassing and explaining needed topological, analytical, and algebraic tools and methods. Some of the highlights included are Carleson's corona theorem and the Bass, topological, and matricial stable ranks. The first volume focusses on topological structures, Banach algebras, and advanced function theory, thus preparing the stage for the algebraic structures in the second volume towards examining stable ranks with analytic methods. The main emphasis is laid on algebras of holomorphic functions. Often a new approach is presented or at least a different angle of sight, which makes the book attractive both for researchers and students interested in these active fields of research.

Analysis in Banach Spaces

Analysis in Banach Spaces PDF Author: Tuomas Hytönen
Publisher: Springer Nature
ISBN: 3031465989
Category : Mathematics
Languages : en
Pages : 839

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Book Description
This third volume of Analysis in Banach Spaces offers a systematic treatment of Banach space-valued singular integrals, Fourier transforms, and function spaces. It further develops and ramifies the theory of functional calculus from Volume II and describes applications of these new notions and tools to the problem of maximal regularity of evolution equations. The exposition provides a unified treatment of a large body of results, much of which has previously only been available in the form of research papers. Some of the more classical topics are presented in a novel way using modern techniques amenable to a vector-valued treatment. Thanks to its accessible style with complete and detailed proofs, this book will be an invaluable reference for researchers interested in functional analysis, harmonic analysis, and the operator-theoretic approach to deterministic and stochastic evolution equations.

Open Problems in Topology II

Open Problems in Topology II PDF Author: Elliott M. Pearl
Publisher: Elsevier
ISBN: 0080475299
Category : Mathematics
Languages : en
Pages : 777

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Book Description
This volume is a collection of surveys of research problems in topology and its applications. The topics covered include general topology, set-theoretic topology, continuum theory, topological algebra, dynamical systems, computational topology and functional analysis.* New surveys of research problems in topology* New perspectives on classic problems* Representative surveys of research groups from all around the world

Conference on Harmonic Analysis

Conference on Harmonic Analysis PDF Author: D. Gulick
Publisher: Springer
ISBN: 3540374795
Category : Mathematics
Languages : en
Pages : 324

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Book Description


Interpolation Sets for Compact Abelian Groups

Interpolation Sets for Compact Abelian Groups PDF Author: Xu Yang
Publisher:
ISBN:
Category :
Languages : en
Pages : 44

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Book Description
We will study various properties of I_0 and \epsilon-Kronecker sets. We show that most infinite sets in the discrete dual group contain infinite interpolation sets.