The Fuglede-Putnam Theory

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Publisher : Springer Nature
ISBN 13 : 3031177827
Total Pages : 164 pages
Book Rating : 4.0/5 (311 download)

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Book Synopsis The Fuglede-Putnam Theory by : Mohammed Hichem Mortad

Download or read book The Fuglede-Putnam Theory written by Mohammed Hichem Mortad and published by Springer Nature. This book was released on 2022-11-14 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is essentially a survey of results on the Fuglede-Putnam theorem and its generalizations in a wide variety of directions. Presenting a broad overview of the results obtained in the field since the early 1950s, this is the first monograph to be dedicated to this powerful tool and its variants. Starting from historical notes and classical versions with their different proofs, the book then explores asymptotic versions, generalizations to non-normal operators, generalizations to unbounded operators, counterexamples, applications, intertwining relations, and conjectures. A rich collection of applications is included. Aimed at postgraduate students as well as researchers interested in operator theory, this book could also be taught as a specialized course.

An Operator Theory Problem Book

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Publisher : World Scientific
ISBN 13 : 9813236272
Total Pages : 656 pages
Book Rating : 4.8/5 (132 download)

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Book Synopsis An Operator Theory Problem Book by : Mortad Mohammed Hichem

Download or read book An Operator Theory Problem Book written by Mortad Mohammed Hichem and published by World Scientific. This book was released on 2018-10-15 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is for third and fourth year university mathematics students (and Master students) as well as lecturers and tutors in mathematics and anyone who needs the basic facts on Operator Theory (e.g. Quantum Mechanists). The main setting for bounded linear operators here is a Hilbert space. There is, however, a generous part on General Functional Analysis (not too advanced though). There is also a chapter on Unbounded Closed Operators.The book is divided into two parts. The first part contains essential background on all of the covered topics with the sections: True or False Questions, Exercises, Tests and More Exercises. In the second part, readers may find answers and detailed solutions to the True or False Questions, Exercises and Tests.Another virtue of the book is the variety of the topics and the exercises and the way they are tackled. In many cases, the approaches are different from what is known in the literature. Also, some very recent results from research papers are included.

Counterexamples in Operator Theory

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Publisher : Springer Nature
ISBN 13 : 3030978141
Total Pages : 613 pages
Book Rating : 4.0/5 (39 download)

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Book Synopsis Counterexamples in Operator Theory by : Mohammed Hichem Mortad

Download or read book Counterexamples in Operator Theory written by Mohammed Hichem Mortad and published by Springer Nature. This book was released on 2022-05-03 with total page 613 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text is the first of its kind exclusively devoted to counterexamples in operator theory and includes over 500 problems on bounded and unbounded linear operators in Hilbert spaces. This volume is geared towards graduate students studying operator theory, and the author has designated the difficulty level for each counterexample, indicating which ones are also suitable for advanced undergraduate students. The first half of the book focuses on bounded linear operators, including counterexamples in the areas of operator topologies, matrices of bounded operators, square roots, the spectrum, operator exponentials, and non-normal operators. The second part of the book is devoted to unbounded linear operators in areas such as closedness and closability, self-adjointness, normality, commutativity, and the spectrum, concluding with a chapter that features some open problems. Chapters begin with a brief “Basics” section for the readers’ reference, and many of the counterexamples included are the author’s original work. Counterexamples in Operator Theory can be used by students in graduate courses on operator theory and advanced matrix theory. Previous coursework in advanced linear algebra, operator theory, and functional analysis is assumed. Researchers, quantum physicists, and undergraduate students studying functional analysis and operator theory will also find this book to be a useful reference.

Operator Approximant Problems Arising from Quantum Theory

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Publisher : Birkhäuser
ISBN 13 : 3319611704
Total Pages : 106 pages
Book Rating : 4.3/5 (196 download)

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Book Synopsis Operator Approximant Problems Arising from Quantum Theory by : Philip J. Maher

Download or read book Operator Approximant Problems Arising from Quantum Theory written by Philip J. Maher and published by Birkhäuser. This book was released on 2017-07-31 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers an account of a number of aspects of operator theory, mainly developed since the 1980s, whose problems have their roots in quantum theory. The research presented is in non-commutative operator approximation theory or, to use Halmos' terminology, in operator approximants. Focusing on the concept of approximants, this self-contained book is suitable for graduate courses.

Complex Proofs of Real Theorems

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Publisher : American Mathematical Soc.
ISBN 13 : 0821875590
Total Pages : 106 pages
Book Rating : 4.8/5 (218 download)

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Book Synopsis Complex Proofs of Real Theorems by : Peter D. Lax

Download or read book Complex Proofs of Real Theorems written by Peter D. Lax and published by American Mathematical Soc.. This book was released on 2011-12-21 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: Complex Proofs of Real Theorems is an extended meditation on Hadamard's famous dictum, ``The shortest and best way between two truths of the real domain often passes through the imaginary one.'' Directed at an audience acquainted with analysis at the first year graduate level, it aims at illustrating how complex variables can be used to provide quick and efficient proofs of a wide variety of important results in such areas of analysis as approximation theory, operator theory, harmonic analysis, and complex dynamics. Topics discussed include weighted approximation on the line, Muntz's theorem, Toeplitz operators, Beurling's theorem on the invariant spaces of the shift operator, prediction theory, the Riesz convexity theorem, the Paley-Wiener theorem, the Titchmarsh convolution theorem, the Gleason-Kahane-Zelazko theorem, and the Fatou-Julia-Baker theorem. The discussion begins with the world's shortest proof of the fundamental theorem of algebra and concludes with Newman's almost effortless proof of the prime number theorem. Four brief appendices provide all necessary background in complex analysis beyond the standard first year graduate course. Lovers of analysis and beautiful proofs will read and reread this slim volume with pleasure and profit.

The Elements of Operator Theory

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Publisher : Springer Science & Business Media
ISBN 13 : 0817649980
Total Pages : 556 pages
Book Rating : 4.8/5 (176 download)

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Book Synopsis The Elements of Operator Theory by : Carlos S. Kubrusly

Download or read book The Elements of Operator Theory written by Carlos S. Kubrusly and published by Springer Science & Business Media. This book was released on 2011-03-01 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second edition of Elements of Operator Theory is a concept-driven textbook that includes a significant expansion of the problems and solutions used to illustrate the principles of operator theory. Written in a user-friendly, motivating style intended to avoid the formula-computational approach, fundamental topics are presented in a systematic fashion, i.e., set theory, algebraic structures, topological structures, Banach spaces, and Hilbert spaces, culminating with the Spectral Theorem. Included in this edition: more than 150 examples, with several interesting counterexamples that demonstrate the frontiers of important theorems, as many as 300 fully rigorous proofs, specially tailored to the presentation, 300 problems, many with hints, and an additional 20 pages of problems for the second edition. *This self-contained work is an excellent text for the classroom as well as a self-study resource for researchers.

Introduction to Operator Theory

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Author :
Publisher : CRC Press
ISBN 13 : 9780582237438
Total Pages : 168 pages
Book Rating : 4.2/5 (374 download)

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Book Synopsis Introduction to Operator Theory by : Takashi Yoshino

Download or read book Introduction to Operator Theory written by Takashi Yoshino and published by CRC Press. This book was released on 1993-12-05 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: An introductory exposition of the study of operator theory, presenting an interesting and rapid approach to some results which are not normally treated in an introductory source. The volume includes recent results and coverage of the current state of the field.

Spectral Theory and Quantum Mechanics

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Publisher : Springer Science & Business Media
ISBN 13 : 8847028353
Total Pages : 742 pages
Book Rating : 4.8/5 (47 download)

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Book Synopsis Spectral Theory and Quantum Mechanics by : Valter Moretti

Download or read book Spectral Theory and Quantum Mechanics written by Valter Moretti and published by Springer Science & Business Media. This book was released on 2013-04-02 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book pursues the accurate study of the mathematical foundations of Quantum Theories. It may be considered an introductory text on linear functional analysis with a focus on Hilbert spaces. Specific attention is given to spectral theory features that are relevant in physics. Having left the physical phenomenology in the background, it is the formal and logical aspects of the theory that are privileged. Another not lesser purpose is to collect in one place a number of useful rigorous statements on the mathematical structure of Quantum Mechanics, including some elementary, yet fundamental, results on the Algebraic Formulation of Quantum Theories. In the attempt to reach out to Master's or PhD students, both in physics and mathematics, the material is designed to be self-contained: it includes a summary of point-set topology and abstract measure theory, together with an appendix on differential geometry. The book should benefit established researchers to organise and present the profusion of advanced material disseminated in the literature. Most chapters are accompanied by exercises, many of which are solved explicitly.

Spectral Theory of Bounded Linear Operators

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Publisher : Springer Nature
ISBN 13 : 3030331490
Total Pages : 249 pages
Book Rating : 4.0/5 (33 download)

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Book Synopsis Spectral Theory of Bounded Linear Operators by : Carlos S. Kubrusly

Download or read book Spectral Theory of Bounded Linear Operators written by Carlos S. Kubrusly and published by Springer Nature. This book was released on 2020-01-30 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook introduces spectral theory for bounded linear operators by focusing on (i) the spectral theory and functional calculus for normal operators acting on Hilbert spaces; (ii) the Riesz-Dunford functional calculus for Banach-space operators; and (iii) the Fredholm theory in both Banach and Hilbert spaces. Detailed proofs of all theorems are included and presented with precision and clarity, especially for the spectral theorems, allowing students to thoroughly familiarize themselves with all the important concepts. Covering both basic and more advanced material, the five chapters and two appendices of this volume provide a modern treatment on spectral theory. Topics range from spectral results on the Banach algebra of bounded linear operators acting on Banach spaces to functional calculus for Hilbert and Banach-space operators, including Fredholm and multiplicity theories. Supplementary propositions and further notes are included as well, ensuring a wide range of topics in spectral theory are covered. Spectral Theory of Bounded Linear Operators is ideal for graduate students in mathematics, and will also appeal to a wider audience of statisticians, engineers, and physicists. Though it is mostly self-contained, a familiarity with functional analysis, especially operator theory, will be helpful.

Analytic Theory of Subnormal Operators

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Publisher : World Scientific
ISBN 13 : 9814641359
Total Pages : 228 pages
Book Rating : 4.8/5 (146 download)

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Book Synopsis Analytic Theory of Subnormal Operators by : Daoxing Xia

Download or read book Analytic Theory of Subnormal Operators written by Daoxing Xia and published by World Scientific. This book was released on 2014-12-18 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains an important progress on the theory of subnormal operators in the past thirty years, which was developed by the author and his collaborators. It serves as a guide and basis to students and researchers on understanding and exploring further this new direction in operator theory. The volume expounds lucidly on analytic model theory, mosaics, trace formulas of the subnormal operators, and subnormal tuples of operators on the Hilbert spaces. Contents:Subnormal OperatorsSubnormal Operators with Finite Rank Self-CommutatorsAnalytic Model for Subnormal k-Tuple of OperatorsSubnormal Tuple of Operators with Finite Dimension Defect SpaceHyponormal Operators with Finite Rank Self-CommutatorsAppendices:The Singular Integral Model, Mosaic and Trace Formula of Hyponormal OperatorQuadrature Domain Readership: Undergraduates, graduates and researchers in operator theory, complex analysis and mathematical physics. Key Features:The text takes an insight-oriented approach that gives immediacy and flexibilityThis monograph lays the basic foundation for these topics, making it beneficial to mathematicians and possible also to those who are working in mathematical physicsComprehensible treatment of modern subjects in operator theoryWritten by one of the foremost experts in operator theory and functional analysisKeywords:Analytic Model;Subnormal Operator;Hyponormal Operator;Mosaic;Principal Function;Quadrature Domain

Encyclopaedia of Mathematics

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Publisher : Springer Science & Business Media
ISBN 13 : 9401512795
Total Pages : 639 pages
Book Rating : 4.4/5 (15 download)

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Book Synopsis Encyclopaedia of Mathematics by : Michiel Hazewinkel

Download or read book Encyclopaedia of Mathematics written by Michiel Hazewinkel and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 639 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the second supplementary volume to Kluwer's highly acclaimed eleven-volume Encyclopaedia of Mathematics. This additional volume contains nearly 500 new entries written by experts and covers developments and topics not included in the previous volumes. These entries are arranged alphabetically throughout and a detailed index is included. This supplementary volume enhances the existing eleven volumes, and together these twelve volumes represent the most authoritative, comprehensive and up-to-date Encyclopaedia of Mathematics available.

Invitation to Linear Operators

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Publisher : CRC Press
ISBN 13 : 1482262940
Total Pages : 262 pages
Book Rating : 4.4/5 (822 download)

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Book Synopsis Invitation to Linear Operators by : Takayuki Furuta

Download or read book Invitation to Linear Operators written by Takayuki Furuta and published by CRC Press. This book was released on 2001-07-26 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most books on linear operators are not easy to follow for students and researchers without an extensive background in mathematics. Self-contained and using only matrix theory, Invitation to Linear Operators: From Matricies to Bounded Linear Operators on a Hilbert Space explains in easy-to-follow steps a variety of interesting recent results on linear operators on a Hilbert space. The author first states the important properties of a Hilbert space, then sets out the fundamental properties of bounded linear operators on a Hilbert space. The final section presents some of the more recent developments in bounded linear operators.

Introduction To The Theory Of

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Publisher : CRC Press
ISBN 13 : 9789058230423
Total Pages : 272 pages
Book Rating : 4.2/5 (34 download)

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Book Synopsis Introduction To The Theory Of by : Vasyl Ostrovskyi

Download or read book Introduction To The Theory Of written by Vasyl Ostrovskyi and published by CRC Press. This book was released on 2004-11-11 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides the fundamentals of representations of finitely presented *-algebras by bounded operators. The theory is illustrated with numerous examples of *-algebra. The examples, in particular, include *-algebra with two self-adjoint generators that satisfy a quadratic or a more general relation, *-algebra with three or four generators, *-algebra that arise from one- and many-dimensional discrete dynamical systems. Wick *-algebra various; *-wild algebras. This book is intended for graduate students as well as researchers.

The Theory of Subnormal Operators

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Publisher : American Mathematical Soc.
ISBN 13 : 0821815369
Total Pages : 454 pages
Book Rating : 4.8/5 (218 download)

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Book Synopsis The Theory of Subnormal Operators by : John B. Conway

Download or read book The Theory of Subnormal Operators written by John B. Conway and published by American Mathematical Soc.. This book was released on 1991 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: "In a certain sense, subnormal operators were introduced too soon because the theory of function algebras and rational approximation was also in its infancy and could not be properly used to examine the class of operators. The progress in the last several years grew out of applying the results of rational approximation." from the Preface. This book is the successor to the author's 1981 book on the same subject. In addition to reflecting the great strides in the development of subnormal operator theory since the first book, the present work is oriented towards rational functions rather than polynomials. Although the book is a research monograph, it has many of the traits of a textbook including exercises. The book requires background in function theory and functional analysis, but is otherwise fairly self-contained. The first few chapters cover the basics about subnormal operator theory and present a study of analytic functions on the unit disk. Other topics included are: some results on hypernormal operators, an exposition of rational approximation interspersed with applications to operator theory, a study of weak-star rational approximation, a set of results that can be termed structure theorems for subnormal operators, and a proof that analytic bounded point evaluations exist.

General Theory of C*-Algebras

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Author :
Publisher : Elsevier
ISBN 13 : 0080528341
Total Pages : 440 pages
Book Rating : 4.0/5 (85 download)

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Book Synopsis General Theory of C*-Algebras by :

Download or read book General Theory of C*-Algebras written by and published by Elsevier. This book was released on 2001-07-11 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: General Theory of C*-Algebras

Algebraic Methods in Functional Analysis

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Publisher : Springer Science & Business Media
ISBN 13 : 3034805020
Total Pages : 294 pages
Book Rating : 4.0/5 (348 download)

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Book Synopsis Algebraic Methods in Functional Analysis by : Ivan G. Todorov

Download or read book Algebraic Methods in Functional Analysis written by Ivan G. Todorov and published by Springer Science & Business Media. This book was released on 2013-10-25 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume comprises the proceedings of the Conference on Operator Theory and its Applications held in Gothenburg, Sweden, April 26-29, 2011. The conference was held in honour of Professor Victor Shulman on the occasion of his 65th birthday. The papers included in the volume cover a large variety of topics, among them the theory of operator ideals, linear preservers, C*-algebras, invariant subspaces, non-commutative harmonic analysis, and quantum groups, and reflect recent developments in these areas. The book consists of both original research papers and high quality survey articles, all of which were carefully refereed. ​

On a Theorem of Fuglede and Putnam

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Publisher :
ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis On a Theorem of Fuglede and Putnam by : Marvin Rosenblum

Download or read book On a Theorem of Fuglede and Putnam written by Marvin Rosenblum and published by . This book was released on 1957 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: