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Matrix And Operator Valued Functions
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Book Synopsis Matrix and Operator Valued Functions by : I. Gohberg
Download or read book Matrix and Operator Valued Functions written by I. Gohberg and published by Birkhäuser. This book was released on 2012-12-06 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Matrix and Operator Valued Functions by : Israel Gohberg
Download or read book Matrix and Operator Valued Functions written by Israel Gohberg and published by Birkhauser. This book was released on 1994-01-01 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is dedicated to the memory of an outstanding mathematician and personality, Vladimir Petrovich Potapov, who made important contributions to and exerted considerable influence in the areas of operator theory, complex analysis and their points of juncture. The book commences with insightful biographical material, and then presents a collection of papers on different aspects of operator theory and complex analysis covering those recent achievements of the Odessa-Kharkov school in which Potapov was very active. The papers deal with interrelated problems and methods. The main topics are the multiplicative structure of contractive matrix and operator functions, operators in spaces with indefinite scalar products, inverse problems for systems of differential equations, interpolation and approximation problems for operator and matrix functions. The book will appeal to a wide group of mathematicians and engineers, and much of the material can be used for advanced courses and seminars.
Book Synopsis Norm Estimations for Operator Valued Functions and Their Applications by : Michael Gil
Download or read book Norm Estimations for Operator Valued Functions and Their Applications written by Michael Gil and published by CRC Press. This book was released on 2021-06-30 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intended for specialists in functional analysis and stability theory, this work presents a systematic exposition of estimations for norms of operator-valued functions, and applies the estimates to spectrum perturbations of linear operators and stability theory. The author demonstrates his own approach to spectrum perturbations.
Book Synopsis Norm Estimations for Operator Valued Functions and Their Applications by : Michael Gil
Download or read book Norm Estimations for Operator Valued Functions and Their Applications written by Michael Gil and published by CRC Press. This book was released on 1995-08-16 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intended for specialists in functional analysis and stability theory, this work presents a systematic exposition of estimations for norms of operator-valued functions, and applies the estimates to spectrum perturbations of linear operators and stability theory. The author demonstrates his own approach to spectrum perturbations.
Book Synopsis Operator Functions And Operator Equations by : Michael Gil'
Download or read book Operator Functions And Operator Equations written by Michael Gil' and published by World Scientific. This book was released on 2017-09-08 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is devoted to norm estimates for operator-valued functions of one and two operator arguments, as well as to their applications to spectrum perturbations of operators and to linear operator equations, i.e. to equations whose solutions are linear operators. Linear operator equations arise in both mathematical theory and engineering practice. The norm estimates suggested in the book have applications to the theories of ordinary differential, difference, functional-differential and integro-differential equations, as well as to the theories of integral operators and analytic functions. This book provides new tools for specialists in matrix theory and functional analysis. A significant part of the book covers the theory of triangular representations of operators that was developed by L de Branges, M S Brodskii, I C Gohberg, M G Krein, M S Livsic and other mathematicians.
Book Synopsis J-Contractive Matrix Valued Functions and Related Topics by : Damir Z. Arov
Download or read book J-Contractive Matrix Valued Functions and Related Topics written by Damir Z. Arov and published by Cambridge University Press. This book was released on 2008-11-06 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive introduction to the theory of J-contractive and J-inner matrix valued functions with respect to the open upper half-plane and a number of applications of this theory. It will be of particular interest to those with an interest in operator theory and matrix analysis.
Book Synopsis Operator-Valued Measures and Integrals for Cone-Valued Functions by : Walter Roth
Download or read book Operator-Valued Measures and Integrals for Cone-Valued Functions written by Walter Roth and published by Springer. This book was released on 2008-12-17 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: Integration theory deals with extended real-valued, vector-valued, or operator-valued measures and functions. Different approaches are applied in each of these cases using different techniques. The order structure of the (extended) real number system is used for real-valued functions and measures whereas suprema and infima are replaced with topological limits in the vector-valued case. A novel approach employing more general structures, locally convex cones, which are natural generalizations of locally convex vector spaces, is introduced here. This setting allows developing a general theory of integration which simultaneously deals with all of the above-mentioned cases.
Book Synopsis Operator Theory, Analytic Functions, Matrices, and Electrical Engineering by : J. William Helton
Download or read book Operator Theory, Analytic Functions, Matrices, and Electrical Engineering written by J. William Helton and published by American Mathematical Soc.. This book was released on 1987 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: Expands the lectures given at a regional conference in Lincoln, Nebraska which brought together a wide variety of scientists, pure mathematicians and engineers.
Book Synopsis Operator Functions and Localization of Spectra by : Michael I. Gil
Download or read book Operator Functions and Localization of Spectra written by Michael I. Gil and published by Springer. This book was released on 2003-12-09 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt: Operator Functions and Localization of Spectra is the first book that presents a systematic exposition of bounds for the spectra of various linear nonself-adjoint operators in a Hilbert space, having discrete and continuous spectra. In particular bounds for the spectra of integral, differential and integro-differential operators, as well as finite and infinite matrices are established. The volume also presents a systematic exposition of estimates for norms of operator-valued functions and their applications.
Book Synopsis Topics in Matrix and Operator Theory by : H. Bart
Download or read book Topics in Matrix and Operator Theory written by H. Bart and published by Birkhäuser. This book was released on 2013-11-22 with total page 383 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Completeness Theorems and Characteristic Matrix Functions by : Marinus A. Kaashoek
Download or read book Completeness Theorems and Characteristic Matrix Functions written by Marinus A. Kaashoek and published by Springer Nature. This book was released on 2022-06-13 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph presents necessary and sufficient conditions for completeness of the linear span of eigenvectors and generalized eigenvectors of operators that admit a characteristic matrix function in a Banach space setting. Classical conditions for completeness based on the theory of entire functions are further developed for this specific class of operators. The classes of bounded operators that are investigated include trace class and Hilbert-Schmidt operators, finite rank perturbations of Volterra operators, infinite Leslie operators, discrete semi-separable operators, integral operators with semi-separable kernels, and period maps corresponding to delay differential equations. The classes of unbounded operators that are investigated appear in a natural way in the study of infinite dimensional dynamical systems such as mixed type functional differential equations, age-dependent population dynamics, and in the analysis of the Markov semigroup connected to the recently introduced zig-zag process.
Book Synopsis Eigenvectors of Matrix and Operator Valued Functions and Several Factorization Problems by : Ilya Krupnik
Download or read book Eigenvectors of Matrix and Operator Valued Functions and Several Factorization Problems written by Ilya Krupnik and published by . This book was released on 1994 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Operator Theory and Complex Analysis by : T. Ando
Download or read book Operator Theory and Complex Analysis written by T. Ando and published by Birkhäuser. This book was released on 2012-12-06 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Linear Functional Equations. Operator Approach by : Anatolij Antonevich
Download or read book Linear Functional Equations. Operator Approach written by Anatolij Antonevich and published by Birkhäuser. This book was released on 2012-12-06 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book we shall study linear functional equations of the form m bu(x) == Lak(X)U(Qk(X)) = f(x), (1) k=l where U is an unknown function from a given space F(X) of functions on a set X, Qk: X -+ X are given mappings, ak and f are given functions. Our approach is based on the investigation of the operators given by the left-hand side of equa tion (1). In what follows such operators will be called functional operators. We will pay special attention to the spectral properties of functional operators, first of all, to invertibility and the Noether property. Since the set X, the space F(X), the mappings Qk and the coefficients ak are arbitrary, the class of operators of the form (1) is very rich and some of its individ ual representatives are related with problems arising in various areas of mathemat ics and its applications. In addition to the classical theory of functional equations, among such areas one can indicate the theory of functional-differential equations with deviating argument, the theory of nonlocal problems for partial differential equations, the theory of boundary value problems for the equation of a vibrating string and equations of mixed type, a number of problems of the general theory of operator algebras and the theory of dynamical systems, the spectral theory of au tomorphisms of Banach algebras, and other problems.
Book Synopsis On Boundary Interpolation for Matrix Valued Schur Functions by : Vladimir Bolotnikov
Download or read book On Boundary Interpolation for Matrix Valued Schur Functions written by Vladimir Bolotnikov and published by American Mathematical Soc.. This book was released on 2006 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: A number of interpolation problems are considered in the Schur class of $p\times q$ matrix valued functions $S$ that are analytic and contractive in the open unit disk. The interpolation constraints are specified in terms of nontangential limits and angular derivatives at one or more (of a finite number of) boundary points. Necessary and sufficient conditions for existence of solutions to these problems and a description of all the solutions when these conditions are met is given.The analysis makes extensive use of a class of reproducing kernel Hilbert spaces ${\mathcal{H (S)$ that was introduced by de Branges and Rovnyak. The Stein equation that is associated with the interpolation problems under consideration is analyzed in detail. A lossless inverse scattering problem isalso considered.
Book Synopsis Operator and Matrix Theory, Function Spaces, and Applications by : Marek Ptak
Download or read book Operator and Matrix Theory, Function Spaces, and Applications written by Marek Ptak and published by Springer Nature. This book was released on with total page 423 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Matrix Convolution Operators on Groups by : Cho-Ho Chu
Download or read book Matrix Convolution Operators on Groups written by Cho-Ho Chu and published by Springer. This book was released on 2008-08-15 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the last decade, convolution operators of matrix functions have received unusual attention due to their diverse applications. This monograph presents some new developments in the spectral theory of these operators. The setting is the Lp spaces of matrix-valued functions on locally compact groups. The focus is on the spectra and eigenspaces of convolution operators on these spaces, defined by matrix-valued measures. Among various spectral results, the L2-spectrum of such an operator is completely determined and as an application, the spectrum of a discrete Laplacian on a homogeneous graph is computed using this result. The contractivity properties of matrix convolution semigroups are studied and applications to harmonic functions on Lie groups and Riemannian symmetric spaces are discussed. An interesting feature is the presence of Jordan algebraic structures in matrix-harmonic functions.
