The E. M. Stein Lectures on Hardy Spaces

The E. M. Stein Lectures on Hardy Spaces
Author: Steven G. Krantz
Publisher: Springer Nature
Total Pages: 257
Release: 2023-02-09
Genre: Mathematics
ISBN: 303121952X

​The book The E. M. Stein Lectures on Hardy Spaces is based on a graduate course on real variable Hardy spaces which was given by E.M. Stein at Princeton University in the academic year 1973-1974. Stein, along with C. Fefferman and G. Weiss, pioneered this subject area, removing the theory of Hardy spaces from its traditional dependence on complex variables, and to reveal its real-variable underpinnings. This book is based on Steven G. Krantz’s notes from the course given by Stein. The text builds on Fefferman's theorem that BMO is the dual of the Hardy space. Using maximal functions, singular integrals, and related ideas, Stein offers many new characterizations of the Hardy spaces. The result is a rich tapestry of ideas that develops the theory of singular integrals to a new level. The final chapter describes the major developments since 1974. This monograph is of broad interest to graduate students and researchers in mathematical analysis. Prerequisites for the book include a solid understanding of real variable theory and complex variable theory. A basic knowledge of functional analysis would also be useful.

Hardy Spaces on Homogeneous Groups. (MN-28), Volume 28

Hardy Spaces on Homogeneous Groups. (MN-28), Volume 28
Author: Gerald B. Folland
Publisher: Princeton University Press
Total Pages: 302
Release: 2020-12-08
Genre: Mathematics
ISBN: 0691222452

The object of this monograph is to give an exposition of the real-variable theory of Hardy spaces (HP spaces). This theory has attracted considerable attention in recent years because it led to a better understanding in Rn of such related topics as singular integrals, multiplier operators, maximal functions, and real-variable methods generally. Because of its fruitful development, a systematic exposition of some of the main parts of the theory is now desirable. In addition to this exposition, these notes contain a recasting of the theory in the more general setting where the underlying Rn is replaced by a homogeneous group. The justification for this wider scope comes from two sources: 1) the theory of semi-simple Lie groups and symmetric spaces, where such homogeneous groups arise naturally as "boundaries," and 2) certain classes of non-elliptic differential equations (in particular those connected with several complex variables), where the model cases occur on homogeneous groups. The example which has been most widely studied in recent years is that of the Heisenberg group.

Summability of Multi-Dimensional Fourier Series and Hardy Spaces

Summability of Multi-Dimensional Fourier Series and Hardy Spaces
Author: Ferenc Weisz
Publisher: Springer Science & Business Media
Total Pages: 340
Release: 2013-06-29
Genre: Mathematics
ISBN: 9401731837

The history of martingale theory goes back to the early fifties when Doob [57] pointed out the connection between martingales and analytic functions. On the basis of Burkholder's scientific achievements the mar tingale theory can perfectly well be applied in complex analysis and in the theory of classical Hardy spaces. This connection is the main point of Durrett's book [60]. The martingale theory can also be well applied in stochastics and mathematical finance. The theories of the one-parameter martingale and the classical Hardy spaces are discussed exhaustively in the literature (see Garsia [83], Neveu [138], Dellacherie and Meyer [54, 55], Long [124], Weisz [216] and Duren [59], Stein [193, 194], Stein and Weiss [192], Lu [125], Uchiyama [205]). The theory of more-parameter martingales and martingale Hardy spaces is investigated in Imkeller [107] and Weisz [216]. This is the first mono graph which considers the theory of more-parameter classical Hardy spaces. The methods of proofs for one and several parameters are en tirely different; in most cases the theorems stated for several parameters are much more difficult to verify. The so-called atomic decomposition method that can be applied both in the one-and more-parameter cases, was considered for martingales by the author in [216].

Lectures on Hermite and Laguerre Expansions

Lectures on Hermite and Laguerre Expansions
Author: Sundaram Thangavelu
Publisher: Princeton University Press
Total Pages: 218
Release: 1993-05-09
Genre: Mathematics
ISBN: 9780691000480

The interplay between analysis on Lie groups and the theory of special functions is well known. This monograph deals with the case of the Heisenberg group and the related expansions in terms of Hermite, special Hermite, and Laguerre functions. The main thrust of the book is to develop a concrete Littlewood-Paley-Stein theory for these expansions and use the theory to prove multiplier theorems. The questions of almost-everywhere and mean convergence of Bochner-Riesz means are also treated. Most of the results in this monograph appear for the first time in book form.

Hardy Spaces on the Euclidean Space

Hardy Spaces on the Euclidean Space
Author: Akihito Uchiyama
Publisher: Springer Science & Business Media
Total Pages: 328
Release: 2001-07-01
Genre: Mathematics
ISBN: 9784431703198

Uchiyama's decomposition of BMO functions is considered the "Mount Everest of Hardy space theory". This book is based on the draft, which the author completed before his sudden death in 1997. Nowadays, his contributions are extremely influential in various fields of analysis, leading to further breakthroughs.

Convergence and Summability of Fourier Transforms and Hardy Spaces

Convergence and Summability of Fourier Transforms and Hardy Spaces
Author: Ferenc Weisz
Publisher: Birkhäuser
Total Pages: 446
Release: 2017-12-27
Genre: Mathematics
ISBN: 3319568140

This book investigates the convergence and summability of both one-dimensional and multi-dimensional Fourier transforms, as well as the theory of Hardy spaces. To do so, it studies a general summability method known as theta-summation, which encompasses all the well-known summability methods, such as the Fejér, Riesz, Weierstrass, Abel, Picard, Bessel and Rogosinski summations. Following on the classic books by Bary (1964) and Zygmund (1968), this is the first book that considers strong summability introduced by current methodology. A further unique aspect is that the Lebesgue points are also studied in the theory of multi-dimensional summability. In addition to classical results, results from the past 20-30 years – normally only found in scattered research papers – are also gathered and discussed, offering readers a convenient “one-stop” source to support their work. As such, the book will be useful for researchers, graduate and postgraduate students alike.

Cohomology of Quotients in Symplectic and Algebraic Geometry

Cohomology of Quotients in Symplectic and Algebraic Geometry
Author: Frances Clare Kirwan
Publisher: Princeton University Press
Total Pages: 220
Release: 1984-12-21
Genre: Mathematics
ISBN: 9780691083704

These notes describe a general procedure for calculating the Betti numbers of the projective quotient varieties that geometric invariant theory associates to reductive group actions on nonsingular complex projective varieties. These quotient varieties are interesting in particular because of their relevance to moduli problems in algebraic geometry. The author describes two different approaches to the problem. One is purely algebraic, while the other uses the methods of symplectic geometry and Morse theory, and involves extending classical Morse theory to certain degenerate functions.

Anisotropic Hardy Spaces and Wavelets

Anisotropic Hardy Spaces and Wavelets
Author: Marcin Bownik
Publisher: American Mathematical Soc.
Total Pages: 136
Release: 2003
Genre: Mathematics
ISBN: 082183326X

Investigates the anisotropic Hardy spaces associated with very general discrete groups of dilations. This book includes the classical isotropic Hardy space theory of Fefferman and Stein and parabolic Hardy space theory of Calderon and Torchinsky.

Function Spaces and Applications

Function Spaces and Applications
Author: David Eric Edmunds
Publisher: CRC Press
Total Pages: 296
Release: 2000
Genre: Mathematics
ISBN: 9780849309380

Developed from the proceedings an international conference held in 1997, Function Spaces and Applications presents the work of leading mathematicians in the vital and rapidly growing field of functional analysis.

Four Lectures on Real Hp? Spaces

Four Lectures on Real Hp? Spaces
Author: Shanzhen Lu
Publisher: World Scientific
Total Pages: 236
Release: 1995
Genre: Mathematics
ISBN: 9789810221584

This book introduces the real variable theory of HP spaces briefly and concentrates on its applications to various aspects of analysis fields. It consists of four chapters. Chapter 1 introduces the basic theory of Fefferman-Stein on real HP spaces. Chapter 2 describes the atomic decomposition theory and the molecular decomposition theory of real HP spaces. In addition, the dual spaces of real HP spaces, the interpolation of operators in HP spaces, and the interpolation of HP spaces are also discussed in Chapter 2. The properties of several basic operators in HP spaces are discussed in Chapter 3 in detail. Among them, some basic results are contributed by Chinese mathematicians, such as the decomposition theory of weak HP spaces and its applications to the study on the sharpness of singular integrals, a new method to deal with the elliptic Riesz means in HP spaces, and the transference theorem of HP-multipliers etc. The last chapter is devoted to applications of real HP spaces to approximation theory.