Pseudo-differential Operators with Discontinuous Symbols

Pseudo-differential Operators with Discontinuous Symbols PDF Author: Aleksandr Vladimirovich Sobolev
Publisher:
ISBN: 9780821895092
Category : Pseudodifferential operators
Languages : en
Pages : 104

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Pseudo-differential Operators with Discontinuous Symbols

Pseudo-differential Operators with Discontinuous Symbols PDF Author: Aleksandr Vladimirovich Sobolev
Publisher:
ISBN: 9780821895092
Category : Pseudodifferential operators
Languages : en
Pages : 104

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Book Description


Pseudo-Differential Operators with Discontinuous Symbols: Widom's Conjecture

Pseudo-Differential Operators with Discontinuous Symbols: Widom's Conjecture PDF Author: Aleksandr Vladimirovich Sobolev
Publisher: American Mathematical Soc.
ISBN: 0821884875
Category : Mathematics
Languages : en
Pages : 116

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Book Description
Relying on the known two-term quasiclassical asymptotic formula for the trace of the function $f(A)$ of a Wiener-Hopf type operator $A$ in dimension one, in 1982 H. Widom conjectured a multi-dimensional generalization of that formula for a pseudo-differential operator $A$ with a symbol $a(\mathbf{x}, \boldsymbol{\xi})$ having jump discontinuities in both variables. In 1990 he proved the conjecture for the special case when the jump in any of the two variables occurs on a hyperplane. The present paper provides a proof of Widom's Conjecture under the assumption that the symbol has jumps in both variables on arbitrary smooth bounded surfaces.

Spectral Theory, Function Spaces and Inequalities

Spectral Theory, Function Spaces and Inequalities PDF Author: B. Malcolm Brown
Publisher: Springer Science & Business Media
ISBN: 3034802633
Category : Mathematics
Languages : en
Pages : 264

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Book Description
This is a collection of contributed papers which focus on recent results in areas of differential equations, function spaces, operator theory and interpolation theory. In particular, it covers current work on measures of non-compactness and real interpolation, sharp Hardy-Littlewood-Sobolev inequalites, the HELP inequality, error estimates and spectral theory of elliptic operators, pseudo differential operators with discontinuous symbols, variable exponent spaces and entropy numbers. These papers contribute to areas of analysis which have been and continue to be heavily influenced by the leading British analysts David Edmunds and Des Evans. This book marks their respective 80th and 70th birthdays.

An Introduction to Pseudo-Differential Operators

An Introduction to Pseudo-Differential Operators PDF Author: M W Wong
Publisher: World Scientific Publishing Company
ISBN: 9814583103
Category : Mathematics
Languages : en
Pages : 196

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Book Description
The aim of this third edition is to give an accessible and essentially self-contained account of pseudo-differential operators based on the previous edition. New chapters notwithstanding, the elementary and detailed style of earlier editions is maintained in order to appeal to the largest possible group of readers. The focus of this book is on the global theory of elliptic pseudo-differential operators on Lp(Rn). The main prerequisite for a complete understanding of the book is a basic course in functional analysis up to the level of compact operators. It is an ideal introduction for graduate students in mathematics and mathematicians who aspire to do research in pseudo-differential operators and related topics.

Introduction To Pseudo-differential Operators, An (2nd Edition)

Introduction To Pseudo-differential Operators, An (2nd Edition) PDF Author: Man-wah Wong
Publisher: World Scientific Publishing Company
ISBN: 9813105429
Category : Mathematics
Languages : en
Pages : 150

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Book Description
In this new edition of An Introduction to Pseudo-Differential Operators, the style and scope of the original book are retained. A chapter on the interchange of order of differentiation and integration is added at the beginning to make the book more self-contained, and a chapter on weak solutions of pseudo-differential equations is added at the end to enhance the value of the book as a work on partial differential equations. Several chapters are provided with additional exercises. The bibliography is slightly expanded and an index is added.

Pseudodifferential Operators and Applications

Pseudodifferential Operators and Applications PDF Author: Francois Treves
Publisher: American Mathematical Soc.
ISBN: 0821814699
Category : Mathematics
Languages : en
Pages : 311

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Book Description
"Proceedings of the Symposium on Pseudodifferential Operators and Fourier Integral Operators with Applications to Partial Differential Equations held at the University of Notre Dame, Notre Dame, Indiana, April 2-5, 1984"--T.p. verso.

Toeplitz Operators and Random Matrices

Toeplitz Operators and Random Matrices PDF Author: Estelle Basor
Publisher: Springer Nature
ISBN: 3031138511
Category : Mathematics
Languages : en
Pages : 606

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Book Description
This volume is dedicated to the memory of Harold Widom (1932–2021), an outstanding mathematician who has enriched mathematics with his ideas and ground breaking work since the 1950s until the present time. It contains a biography of Harold Widom, personal notes written by his former students or colleagues, and also his last, previously unpublished paper on domain walls in a Heisenberg–Ising chain. Widom's most famous contributions were made to Toeplitz operators and random matrices. While his work on random matrices is part of almost all the present-day research activities in this field, his work in Toeplitz operators and matrices was done mainly before 2000 and is therefore described in a contribution devoted to his achievements in just this area. The volume contains 18 invited and refereed research and expository papers on Toeplitz operators and random matrices. These present new results or new perspectives on topics related to Widom's work.

Analysis of Pseudo-Differential Operators

Analysis of Pseudo-Differential Operators PDF Author: Shahla Molahajloo
Publisher: Springer
ISBN: 3030051684
Category : Mathematics
Languages : en
Pages : 257

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Book Description
This volume, like its predecessors, is based on the special session on pseudo-differential operators, one of the many special sessions at the 11th ISAAC Congress, held at Linnaeus University in Sweden on August 14-18, 2017. It includes research papers presented at the session and invited papers by experts in fields that involve pseudo-differential operators. The first four chapters focus on the functional analysis of pseudo-differential operators on a spectrum of settings from Z to Rn to compact groups. Chapters 5 and 6 discuss operators on Lie groups and manifolds with edge, while the following two chapters cover topics related to probabilities. The final chapters then address topics in differential equations.

Elementary Introduction to the Theory of Pseudodifferential Operators

Elementary Introduction to the Theory of Pseudodifferential Operators PDF Author: Xavier Saint Raymond
Publisher: Routledge
ISBN: 1351452932
Category : Mathematics
Languages : en
Pages : 120

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Book Description
In the 19th century, the Fourier transformation was introduced to study various problems of partial differential equations. Since 1960, this old tool has been developed into a well-organized theory called microlocal analysis that is based on the concept of the pseudo-differential operator. This book provides the fundamental knowledge non-specialists need in order to use microlocal analysis. It is strictly mathematical in the sense that it contains precise definitions, statements of theorems and complete proofs, and follows the usual method of pure mathematics. The book explains the origin of the theory (i.e., Fourier transformation), presents an elementary construcion of distribution theory, and features a careful exposition of standard pseudodifferential theory. Exercises, historical notes, and bibliographical references are included to round out this essential book for mathematics students; engineers, physicists, and mathematicians who use partial differential equations; and advanced mathematics instructors.

Pseudo Differential Operators

Pseudo Differential Operators PDF Author: M. Taylor
Publisher: Springer
ISBN: 3540372660
Category : Mathematics
Languages : en
Pages : 160

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Book Description
These notes are based on the lectures given on partial differential equations at the University of Michigan during the winter semester of 1972, with some extensions. The students to whom these lectures were addressed were assumed to have knowledge of elementary functional analysis, the Fourier transform, distribution theory, and Sobolev spaces, and such tools are used without comment. In this monography, we develop one tool, the calculus of pseudo differential operators, and apply it to several of the main problems of partial differential equations.