Functional Analysis and the Feynman Operator Calculus

Functional Analysis and the Feynman Operator Calculus PDF

Author: Tepper Gill

Publisher: Springer

Published: 2016-03-30

Total Pages: 370

ISBN-13: 331927595X

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This book provides the mathematical foundations for Feynman's operator calculus and for the Feynman path integral formulation of quantum mechanics as a natural extension of analysis and functional analysis to the infinite-dimensional setting. In one application, the results are used to prove the last two remaining conjectures of Freeman Dyson for quantum electrodynamics. In another application, the results are used to unify methods and weaken domain requirements for non-autonomous evolution equations. Other applications include a general theory of Lebesgue measure on Banach spaces with a Schauder basis and a new approach to the structure theory of operators on uniformly convex Banach spaces. This book is intended for advanced graduate students and researchers.

Feynman's Operational Calculus and Beyond

Feynman's Operational Calculus and Beyond PDF

Author: Gerald W. Johnson

Publisher: Oxford Mathematical Monographs

Published: 2015

Total Pages: 385

ISBN-13: 0198702493

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This book is aimed at providing a coherent, essentially self-contained, rigorous and comprehensive abstract theory of Feynman's operational calculus for noncommuting operators. Although it is inspired by Feynman's original heuristic suggestions and time-ordering rules in his seminal 1951 paper An operator calculus having applications in quantum electrodynamics, as will be made abundantly clear in the introduction (Chapter 1) and elsewhere in the text, the theory developed in this book also goes well beyond them in a number of directions which were not anticipated in Feynman's work. Hence, the second part of the main title of this book. The basic properties of the operational calculus are developed and certain algebraic and analytic properties of the operational calculus are explored. Also, the operational calculus will be seen to possess some pleasant stability properties. Furthermore, an evolution equation and a generalized integral equation obeyed by the operational calculus are discussed and connections with certain analytic Feynman integrals are noted. This volume is essentially self-contained and we only assume that the reader has a reasonable, graduate level, background in analysis, measure theory and functional analysis or operator theory. Much of the necessary remaining background is supplied in the text itself.

The Feynman Integral and Feynman's Operational Calculus

The Feynman Integral and Feynman's Operational Calculus PDF

Author: Gerald W. Johnson

Publisher: Clarendon Press

Published: 2000-03-16

Total Pages: 790

ISBN-13: 0191546267

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This book provides the most comprehensive mathematical treatment to date of the Feynman path integral and Feynman's operational calculus. It is accessible to mathematicians, mathematical physicists and theoretical physicists. Including new results and much material previously only available in the research literature, this book discusses both the mathematics and physics background that motivate the study of the Feynman path integral and Feynman's operational calculus, and also provides more detailed proofs of the central results.

Lectures and Exercises on Functional Analysis

Lectures and Exercises on Functional Analysis PDF

Author: Александр Яковлевич Хелемский

Publisher: American Mathematical Society(RI)

Published: 2006

Total Pages: 468

ISBN-13: 9780821835524

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This book contains a unique exposition intended to serve as an introduction to functional analysis. The topics covered include: normed spaces and bounded operators, Banach spaces, polynormed spaces and distributions, compact operators, $C*$ algebra, spectral theorems, Fourier transform, and more. A distinguishing feature of the book is the wide use of the language and elementary constructions of category theory, which are explained in the opening chapter of the book. Among nonstandard topics discussed in the book are the theory of Banach tensor products, basics of quantum functional analysis, and Borel operator calculus. General definitions and main results are supplemented with many examples and exercises. Prerequisites for the main part of the book include standard undergraduate courses in algebra and analysis. It is suitable for graduate students and researchers interested in functional analysis.

Applications of Functional Analysis and Operator Theory

Applications of Functional Analysis and Operator Theory PDF

Author: V. Hutson

Publisher: Elsevier Science Limited

Published: 2005

Total Pages: 426

ISBN-13: 9780444517906

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Functional analysis is a powerful tool when applied to mathematical problems arising from physical situations. The present book provides, by careful selection of material, a collection of concepts and techniques essential for the modern practitioner. Emphasis is placed on the solution of equations (including nonlinear and partial differential equations). The assumed background is limited to elementary real variable theory and finite-dimensional vector spaces. Key Features - Provides an ideal transition between introductory math courses and advanced graduate study in applied mathematics, the physical sciences, or engineering. - Gives the reader a keen understanding of applied functional analysis, building progressively from simple background material to the deepest and most significant results. - Introduces each new topic with a clear, concise explanation. - Includes numerous examples linking fundamental principles with applications. - Solidifies the reader's understanding with numerous end-of-chapter problems. · Provides an ideal transition between introductory math courses and advanced graduate study in applied mathematics, the physical sciences, or engineering. · Gives the reader a keen understanding of applied functional analysis, building progressively from simple background material to the deepest and most significant results. · Introduces each new topic with a clear, concise explanation. · Includes numerous examples linking fundamental principles with applications. · Solidifies the reader's understanding with numerous end-of-chapter problems.

Functional Analysis

Functional Analysis PDF

Author: Yurij M. Berezansky

Publisher: Birkhäuser

Published: 2012-12-06

Total Pages: 443

ISBN-13: 3034891857

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"Functional Analysis" is a comprehensive, 2-volume treatment of a subject lying at the core of modern analysis and mathematical physics. The first volume reviews basic concepts such as the measure, the integral, Banach spaces, bounded operators and generalized functions. Volume II moves on to more advanced topics including unbounded operators, spectral decomposition, expansion in generalized eigenvectors, rigged spaces, and partial differential operators. This text provides students of mathematics and physics with a clear introduction into the above concepts, with the theory well illustrated by a wealth of examples. Researchers will appreciate it as a useful reference manual.

Applied Functional Analysis

Applied Functional Analysis PDF

Author: J. Tinsley Oden

Publisher: CRC Press

Published: 2017-12-01

Total Pages: 695

ISBN-13: 1498761151

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Applied Functional Analysis, Third Edition provides a solid mathematical foundation for the subject. It motivates students to study functional analysis by providing many contemporary applications and examples drawn from mechanics and science. This well-received textbook starts with a thorough introduction to modern mathematics before continuing with detailed coverage of linear algebra, Lebesque measure and integration theory, plus topology with metric spaces. The final two chapters provides readers with an in-depth look at the theory of Banach and Hilbert spaces before concluding with a brief introduction to Spectral Theory. The Third Edition is more accessible and promotes interest and motivation among students to prepare them for studying the mathematical aspects of numerical analysis and the mathematical theory of finite elements.

Functional Analysis

Functional Analysis PDF

Author: Prahlad Vaidyanathan

Publisher: Cambridge University Press

Published: 2023-08-31

Total Pages: 557

ISBN-13: 100924390X

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This textbook guides graduate students and researchers through the basics of Functional Analysis and the theory of Operator Algebras.

An Introduction to Functional Analysis

An Introduction to Functional Analysis PDF

Author: Charles Swartz

Publisher: CRC Press

Published: 1992-01-28

Total Pages: 624

ISBN-13: 9780824786434

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Based on an introductory, graduate-level course given by Swartz at New Mexico State U., this textbook, written for students with a moderate knowledge of point set topology and integration theory, explains the principles and theories of functional analysis and their applications, showing the interpla