Treatise on the Shift Operator

Treatise on the Shift Operator PDF Author: N.K. Nikol'skii
Publisher: Springer Science & Business Media
ISBN: 3642701515
Category : Mathematics
Languages : en
Pages : 496

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Book Description
This book is an elementary introduction to non-classical spectral theory. Mter the basic definitions and a reduction to the study of the functional model the discussion will be centered around the simplest variant of such a model which, formally speaking, comprises only the class of contraction operators with a one dimensional rank of non-unitarity (rank(I - T*T) = rank(I - TT*) = 1). The main emphasis is on the technical side of the subject, the book being mostly devoted to a development of the analytical machinery of spectral theory rather than to this discipline itself. The functional model of Sz. -Nagy and Foia§ re duces the study of general operators to an investigation of the . compression T=PSIK of the shift operator S, Sf = zf, onto coinvariant subspaces (i. e. subspaces in variant with respect to the adjoint shift S*). In the main body of the book (the "Lectures" in the proper meaning of the word) this operator acts on the Hardy space H2 and is itself a part of the operator of multiplication by the independent variable in the space L2 (in the case at hand L2 means L2(lf), If being the unit circle), this operator again being fundamental for classical spectral theory.

Treatise on the Shift Operator

Treatise on the Shift Operator PDF Author: N.K. Nikol'skii
Publisher: Springer
ISBN: 9783540150213
Category : Mathematics
Languages : en
Pages : 512

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Book Description
This book is an elementary introduction to non-classical spectral theory. Mter the basic definitions and a reduction to the study of the functional model the discussion will be centered around the simplest variant of such a model which, formally speaking, comprises only the class of contraction operators with a one dimensional rank of non-unitarity (rank(I - T*T) = rank(I - TT*) = 1). The main emphasis is on the technical side of the subject, the book being mostly devoted to a development of the analytical machinery of spectral theory rather than to this discipline itself. The functional model of Sz. -Nagy and Foia§ re duces the study of general operators to an investigation of the . compression T=PSIK of the shift operator S, Sf = zf, onto coinvariant subspaces (i. e. subspaces in variant with respect to the adjoint shift S*). In the main body of the book (the "Lectures" in the proper meaning of the word) this operator acts on the Hardy space H2 and is itself a part of the operator of multiplication by the independent variable in the space L2 (in the case at hand L2 means L2(lf), If being the unit circle), this operator again being fundamental for classical spectral theory.

Treatise on the Shift Operator

Treatise on the Shift Operator PDF Author: N.K. Nikol'skii
Publisher: Springer
ISBN: 9783642701528
Category : Mathematics
Languages : en
Pages : 491

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Book Description
This book is an elementary introduction to non-classical spectral theory. Mter the basic definitions and a reduction to the study of the functional model the discussion will be centered around the simplest variant of such a model which, formally speaking, comprises only the class of contraction operators with a one dimensional rank of non-unitarity (rank(I - T*T) = rank(I - TT*) = 1). The main emphasis is on the technical side of the subject, the book being mostly devoted to a development of the analytical machinery of spectral theory rather than to this discipline itself. The functional model of Sz. -Nagy and Foia§ re duces the study of general operators to an investigation of the . compression T=PSIK of the shift operator S, Sf = zf, onto coinvariant subspaces (i. e. subspaces in variant with respect to the adjoint shift S*). In the main body of the book (the "Lectures" in the proper meaning of the word) this operator acts on the Hardy space H2 and is itself a part of the operator of multiplication by the independent variable in the space L2 (in the case at hand L2 means L2(lf), If being the unit circle), this operator again being fundamental for classical spectral theory.

Treatise on the Shift Operator

Treatise on the Shift Operator PDF Author: N.K. Nikol'skii
Publisher: Springer Science & Business Media
ISBN: 3642701515
Category : Mathematics
Languages : en
Pages : 496

Get Book Here

Book Description
This book is an elementary introduction to non-classical spectral theory. Mter the basic definitions and a reduction to the study of the functional model the discussion will be centered around the simplest variant of such a model which, formally speaking, comprises only the class of contraction operators with a one dimensional rank of non-unitarity (rank(I - T*T) = rank(I - TT*) = 1). The main emphasis is on the technical side of the subject, the book being mostly devoted to a development of the analytical machinery of spectral theory rather than to this discipline itself. The functional model of Sz. -Nagy and Foia§ re duces the study of general operators to an investigation of the . compression T=PSIK of the shift operator S, Sf = zf, onto coinvariant subspaces (i. e. subspaces in variant with respect to the adjoint shift S*). In the main body of the book (the "Lectures" in the proper meaning of the word) this operator acts on the Hardy space H2 and is itself a part of the operator of multiplication by the independent variable in the space L2 (in the case at hand L2 means L2(lf), If being the unit circle), this operator again being fundamental for classical spectral theory.

Treatise on the Shift Operator

Treatise on the Shift Operator PDF Author: Nikol'skii Nikolai Kapitonovich
Publisher:
ISBN: 9780387150215
Category :
Languages : en
Pages : 0

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Book Description


Complex Analysis, Operators, and Related Topics

Complex Analysis, Operators, and Related Topics PDF Author: Victor P. Havin
Publisher: Birkhäuser
ISBN: 3034883781
Category : Mathematics
Languages : en
Pages : 407

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Book Description
This volume is devoted to some topical problems and various applications of operator theory and its interplay with modern complex analysis. 30 carefully selected surveys and research papers are united by the "operator theoretic ideology" and systematic use of modern function theoretical techniques.

Recent Advances in Operator Theory, Operator Algebras, and their Applications

Recent Advances in Operator Theory, Operator Algebras, and their Applications PDF Author: Dumitru Gaspar
Publisher: Springer Science & Business Media
ISBN: 3764373148
Category : Mathematics
Languages : en
Pages : 351

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Book Description
This book offers peer-reviewed articles from the 19th International Conference on Operator Theory, Summer 2002. It contains recent developments in a broad range of topics from operator theory, operator algebras and their applications, particularly to differential analysis, complex functions, ergodic theory, mathematical physics, matrix analysis, and systems theory. The book covers a large variety of topics including single operator theory, C*-algebras, diffrential operators, integral transforms, stochastic processes and operators, and more.

Recent Advances in Operator Theory

Recent Advances in Operator Theory PDF Author: A. Dijksma
Publisher: Birkhäuser
ISBN: 3034883234
Category : Mathematics
Languages : en
Pages : 592

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Book Description
A collection of 25 papers dedicated to Israel Gohberg, an outstanding leader in operator theory. Also containing a review of his contributions to mathematics and a complete list of his publications. The book is of interest to a wide audience of pure and applied mathematicians.

Multiplication Operators on the Bergman Space

Multiplication Operators on the Bergman Space PDF Author: Kunyu Guo
Publisher: Springer
ISBN: 366246845X
Category : Mathematics
Languages : en
Pages : 327

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Book Description
This book deals with various aspects of commutants and reducing subspaces of multiplication operators on the Bergman space, along with relevant von Neumann algebras generated by these operators, which have been the focus of considerable attention from the authors and other experts in recent years. The book reviews past developments and offers insights into cutting-edge developments in the study of multiplication operators. It also provides commentary and comparisons to stimulate research in this area.

Matrix and Operator Valued Functions

Matrix and Operator Valued Functions PDF Author: I. Gohberg
Publisher: Birkhäuser
ISBN: 3034885326
Category : Mathematics
Languages : en
Pages : 241

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Book Description
A collection of papers on different aspects of operator theory and complex analysis, covering the recent achievements of the Odessa-Kharkov school, where Potapov was very active. The book appeals to a wide group of mathematicians and engineers, and much of the material can be used for advanced courses and seminars.

Operators, Functions, and Systems - An Easy Reading

Operators, Functions, and Systems - An Easy Reading PDF Author: Nikolai K. Nikolski
Publisher: American Mathematical Soc.
ISBN: 0821849336
Category : Computers
Languages : en
Pages : 482

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Book Description
One of two volumes, this text combines distinct topics of modern analysis and its applications: Hardy classes of holomorphic functions; spectral theory of Hankel and Toeplitz operators. Each topic has important implications for complex analysis.