Flat Extensions of Positive Moment Matrices

Flat Extensions of Positive Moment Matrices

Author: Raúl E. Curto

Publisher: American Mathematical Society(RI)

Published: 1998

Total Pages: 73

ISBN-13: 9781470402372

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Develops computational tests for existence and uniqueness of representing measures $\mu$ in the Truncated Complex Moment Problem: $\gamma_{ij}=\int \bar z DEGREESiz DEGREESj\, d\mu$ $(0\1e i+j\1e 2n)$. This book expresses conditions for the existence of finitely atomic representing measures in terms


Book Synopsis Flat Extensions of Positive Moment Matrices by : Raúl E. Curto

Download or read book Flat Extensions of Positive Moment Matrices written by Raúl E. Curto and published by American Mathematical Society(RI). This book was released on 1998 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: Develops computational tests for existence and uniqueness of representing measures $\mu$ in the Truncated Complex Moment Problem: $\gamma_{ij}=\int \bar z DEGREESiz DEGREESj\, d\mu$ $(0\1e i+j\1e 2n)$. This book expresses conditions for the existence of finitely atomic representing measures in terms


Flat Extensions of Positive Moment Matrices: Recursively Generated Relations

Flat Extensions of Positive Moment Matrices: Recursively Generated Relations

Author: Raúl E. Curto

Publisher: American Mathematical Soc.

Published: 1998

Total Pages: 73

ISBN-13: 0821808699

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In this book, the authors develop new computational tests for existence and uniqueness of representing measures $\mu$ in the Truncated Complex Moment Problem: $\gamma {ij}=\int \bar zizj\, d\mu$ $(0\le i+j\le 2n)$. Conditions for the existence of finitely atomic representing measures are expressed in terms of positivity and extension properties of the moment matrix $M(n)(\gamma )$ associated with $\gamma \equiv \gamma {(2n)}$: $\gamma {00}, \dots ,\gamma {0,2n},\dots ,\gamma {2n,0}$, $\gamma {00}>0$. This study includes new conditions for flat (i.e., rank-preserving) extensions $M(n+1)$ of $M(n)\ge 0$; each such extension corresponds to a distinct rank $M(n)$-atomic representing measure, and each such measure is minimal among representing measures in terms of the cardinality of its support. For a natural class of moment matrices satisfying the tests of recursive generation, recursive consistency, and normal consistency, the existence problem for minimal representing measures is reduced to the solubility of small systems of multivariable algebraic equations. In a variety of applications, including cases of the quartic moment problem ($n=2$), the text includes explicit contructions of minimal representing measures via the theory of flat extensions. Additional computational texts are used to prove non-existence of representing measures or the non-existence of minimal representing measures. These tests are used to illustrate, in very concrete terms, new phenomena, associated with higher-dimensional moment problems that do not appear in the classical one-dimensional moment problem.


Book Synopsis Flat Extensions of Positive Moment Matrices: Recursively Generated Relations by : Raúl E. Curto

Download or read book Flat Extensions of Positive Moment Matrices: Recursively Generated Relations written by Raúl E. Curto and published by American Mathematical Soc.. This book was released on 1998 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book, the authors develop new computational tests for existence and uniqueness of representing measures $\mu$ in the Truncated Complex Moment Problem: $\gamma {ij}=\int \bar zizj\, d\mu$ $(0\le i+j\le 2n)$. Conditions for the existence of finitely atomic representing measures are expressed in terms of positivity and extension properties of the moment matrix $M(n)(\gamma )$ associated with $\gamma \equiv \gamma {(2n)}$: $\gamma {00}, \dots ,\gamma {0,2n},\dots ,\gamma {2n,0}$, $\gamma {00}>0$. This study includes new conditions for flat (i.e., rank-preserving) extensions $M(n+1)$ of $M(n)\ge 0$; each such extension corresponds to a distinct rank $M(n)$-atomic representing measure, and each such measure is minimal among representing measures in terms of the cardinality of its support. For a natural class of moment matrices satisfying the tests of recursive generation, recursive consistency, and normal consistency, the existence problem for minimal representing measures is reduced to the solubility of small systems of multivariable algebraic equations. In a variety of applications, including cases of the quartic moment problem ($n=2$), the text includes explicit contructions of minimal representing measures via the theory of flat extensions. Additional computational texts are used to prove non-existence of representing measures or the non-existence of minimal representing measures. These tests are used to illustrate, in very concrete terms, new phenomena, associated with higher-dimensional moment problems that do not appear in the classical one-dimensional moment problem.


Featured Reviews in Mathematical Reviews 1997-1999

Featured Reviews in Mathematical Reviews 1997-1999

Author: Donald G. Babbitt

Publisher: American Mathematical Soc.

Published: 2000-05-05

Total Pages: 762

ISBN-13: 9780821896709

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This second volume of Featured Reviews makes available special detailed reviews of some of the most important mathematical articles and books published from 1997 through 1999. Also included are excellent reviews of several classic books and articles published prior to 1970. Among those reviews, for example, are the following: Homological Algebra by Henri Cartan and Samuel Eilenberg, reviewed by G. Hochschild; Faisceaux algebriques coherents by Jean-Pierre Serre, reviewed by C. Chevalley; and On the Theory of General Partial Differential Operators by Lars Hormander, reviewed by J. L. Lions. In particular, those seeking information on current developments outside their own area of expertise will find the volume very useful. By identifying some of the best publications, papers, and books that have had or are expected to have a significant impact in applied and pure mathematics, this volume will serve as a comprehensive guide to important new research across all fields covered by MR.


Book Synopsis Featured Reviews in Mathematical Reviews 1997-1999 by : Donald G. Babbitt

Download or read book Featured Reviews in Mathematical Reviews 1997-1999 written by Donald G. Babbitt and published by American Mathematical Soc.. This book was released on 2000-05-05 with total page 762 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second volume of Featured Reviews makes available special detailed reviews of some of the most important mathematical articles and books published from 1997 through 1999. Also included are excellent reviews of several classic books and articles published prior to 1970. Among those reviews, for example, are the following: Homological Algebra by Henri Cartan and Samuel Eilenberg, reviewed by G. Hochschild; Faisceaux algebriques coherents by Jean-Pierre Serre, reviewed by C. Chevalley; and On the Theory of General Partial Differential Operators by Lars Hormander, reviewed by J. L. Lions. In particular, those seeking information on current developments outside their own area of expertise will find the volume very useful. By identifying some of the best publications, papers, and books that have had or are expected to have a significant impact in applied and pure mathematics, this volume will serve as a comprehensive guide to important new research across all fields covered by MR.


Moments, Positive Polynomials and Their Applications

Moments, Positive Polynomials and Their Applications

Author: Jean Bernard Lasserre

Publisher: World Scientific

Published: 2009-10-02

Total Pages: 384

ISBN-13: 1908978279

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Many important applications in global optimization, algebra, probability and statistics, applied mathematics, control theory, financial mathematics, inverse problems, etc. can be modeled as a particular instance of the Generalized Moment Problem (GMP). This book introduces a new general methodology to solve the GMP when its data are polynomials and basic semi-algebraic sets. This methodology combines semidefinite programming with recent results from real algebraic geometry to provide a hierarchy of semidefinite relaxations converging to the desired optimal value. Applied on appropriate cones, standard duality in convex optimization nicely expresses the duality between moments and positive polynomials. In the second part, the methodology is particularized and described in detail for various applications, including global optimization, probability, optimal control, mathematical finance, multivariate integration, etc., and examples are provided for each particular application. Errata(s) Errata Contents:Moments and Positive Polynomials:The Generalized Moment ProblemPositive PolynomialsMomentsAlgorithms for Moment ProblemsApplications:Global Optimization over PolynomialsSystems of Polynomial EquationsApplications in ProbabilityMarkov Chains ApplicationsApplication in Mathematical FinanceApplication in ControlConvex Envelope and Representation of Convex SetsMultivariate IntegrationMin-Max Problems and Nash EquilibriaBounds on Linear PDE Readership: Postgraduates, academics and researchers in mathematical programming, control and optimization. Keywords:Optimization;Moments;Applied Mathematics;Polynomials;Sums of Squares;Semidefinite ProgrammingKey Features:The first book ever written that provides timely update on the recent advances in polynomial optimization from the modern perspective of mathematical programmingIllustrates the use of the Generalized Moment Problem (GMP) in various and diverse applicationsThe Matlab-based software GloptiPoly to solve the GMP is also described in this bookReviews:“Beginners in areas related to optimization theory, such as control theory, statistics, mathematical finance, computer science, numerical analysis or even mathematical physics can use the monograph by Lasserre as a textbook, finding there all necessary steps for entering into this new fascinating territory. Experts in real algebra, real algebraic geometry, functional analysis and all other subjects mentioned above can use the book as a desk reference and historical-bibliographical guide … the topics of Lasserre's text are so fresh and explosive because for the first time here the functional analytic positivity met real algebra positivity in a versatile applied framework.”Mihai Putinar University of California at Santa Barbara, USA “This book makes a dynamic entrance into the literature of optimization. It is a self-contained textbook devoted to a modern, rapidly developing area of applied mathematics, characterized by a profuse use of optimization techniques combined with important results of real algebraic geometry, and supporting applications in many other domains. It is undoubtedly a nice piece of work and potentially a valuable reference for future developments.”Mathematical Reviews


Book Synopsis Moments, Positive Polynomials and Their Applications by : Jean Bernard Lasserre

Download or read book Moments, Positive Polynomials and Their Applications written by Jean Bernard Lasserre and published by World Scientific. This book was released on 2009-10-02 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many important applications in global optimization, algebra, probability and statistics, applied mathematics, control theory, financial mathematics, inverse problems, etc. can be modeled as a particular instance of the Generalized Moment Problem (GMP). This book introduces a new general methodology to solve the GMP when its data are polynomials and basic semi-algebraic sets. This methodology combines semidefinite programming with recent results from real algebraic geometry to provide a hierarchy of semidefinite relaxations converging to the desired optimal value. Applied on appropriate cones, standard duality in convex optimization nicely expresses the duality between moments and positive polynomials. In the second part, the methodology is particularized and described in detail for various applications, including global optimization, probability, optimal control, mathematical finance, multivariate integration, etc., and examples are provided for each particular application. Errata(s) Errata Contents:Moments and Positive Polynomials:The Generalized Moment ProblemPositive PolynomialsMomentsAlgorithms for Moment ProblemsApplications:Global Optimization over PolynomialsSystems of Polynomial EquationsApplications in ProbabilityMarkov Chains ApplicationsApplication in Mathematical FinanceApplication in ControlConvex Envelope and Representation of Convex SetsMultivariate IntegrationMin-Max Problems and Nash EquilibriaBounds on Linear PDE Readership: Postgraduates, academics and researchers in mathematical programming, control and optimization. Keywords:Optimization;Moments;Applied Mathematics;Polynomials;Sums of Squares;Semidefinite ProgrammingKey Features:The first book ever written that provides timely update on the recent advances in polynomial optimization from the modern perspective of mathematical programmingIllustrates the use of the Generalized Moment Problem (GMP) in various and diverse applicationsThe Matlab-based software GloptiPoly to solve the GMP is also described in this bookReviews:“Beginners in areas related to optimization theory, such as control theory, statistics, mathematical finance, computer science, numerical analysis or even mathematical physics can use the monograph by Lasserre as a textbook, finding there all necessary steps for entering into this new fascinating territory. Experts in real algebra, real algebraic geometry, functional analysis and all other subjects mentioned above can use the book as a desk reference and historical-bibliographical guide … the topics of Lasserre's text are so fresh and explosive because for the first time here the functional analytic positivity met real algebra positivity in a versatile applied framework.”Mihai Putinar University of California at Santa Barbara, USA “This book makes a dynamic entrance into the literature of optimization. It is a self-contained textbook devoted to a modern, rapidly developing area of applied mathematics, characterized by a profuse use of optimization techniques combined with important results of real algebraic geometry, and supporting applications in many other domains. It is undoubtedly a nice piece of work and potentially a valuable reference for future developments.”Mathematical Reviews


The Moment Problem

The Moment Problem

Author: Konrad Schmüdgen

Publisher: Springer

Published: 2017-11-09

Total Pages: 512

ISBN-13: 3319645463

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This advanced textbook provides a comprehensive and unified account of the moment problem. It covers the classical one-dimensional theory and its multidimensional generalization, including modern methods and recent developments. In both the one-dimensional and multidimensional cases, the full and truncated moment problems are carefully treated separately. Fundamental concepts, results and methods are developed in detail and accompanied by numerous examples and exercises. Particular attention is given to powerful modern techniques such as real algebraic geometry and Hilbert space operators. A wide range of important aspects are covered, including the Nevanlinna parametrization for indeterminate moment problems, canonical and principal measures for truncated moment problems, the interplay between Positivstellensätze and moment problems on semi-algebraic sets, the fibre theorem, multidimensional determinacy theory, operator-theoretic approaches, and the existence theory and important special topics of multidimensional truncated moment problems. The Moment Problem will be particularly useful to graduate students and researchers working on moment problems, functional analysis, complex analysis, harmonic analysis, real algebraic geometry, polynomial optimization, or systems theory. With notes providing useful background information and exercises of varying difficulty illustrating the theory, this book will also serve as a reference on the subject and can be used for self-study.


Book Synopsis The Moment Problem by : Konrad Schmüdgen

Download or read book The Moment Problem written by Konrad Schmüdgen and published by Springer. This book was released on 2017-11-09 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: This advanced textbook provides a comprehensive and unified account of the moment problem. It covers the classical one-dimensional theory and its multidimensional generalization, including modern methods and recent developments. In both the one-dimensional and multidimensional cases, the full and truncated moment problems are carefully treated separately. Fundamental concepts, results and methods are developed in detail and accompanied by numerous examples and exercises. Particular attention is given to powerful modern techniques such as real algebraic geometry and Hilbert space operators. A wide range of important aspects are covered, including the Nevanlinna parametrization for indeterminate moment problems, canonical and principal measures for truncated moment problems, the interplay between Positivstellensätze and moment problems on semi-algebraic sets, the fibre theorem, multidimensional determinacy theory, operator-theoretic approaches, and the existence theory and important special topics of multidimensional truncated moment problems. The Moment Problem will be particularly useful to graduate students and researchers working on moment problems, functional analysis, complex analysis, harmonic analysis, real algebraic geometry, polynomial optimization, or systems theory. With notes providing useful background information and exercises of varying difficulty illustrating the theory, this book will also serve as a reference on the subject and can be used for self-study.


Nonselfadjoint Operator Algebras, Operator Theory, and Related Topics

Nonselfadjoint Operator Algebras, Operator Theory, and Related Topics

Author: H. Bercovicii

Publisher: Birkhäuser

Published: 2012-12-06

Total Pages: 213

ISBN-13: 3034887795

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This volume, dedicated to Carl Pearcy on the occasion of his 60th birthday, presents recent results in operator theory, nonselfadjoint operator algebras, measure theory and the theory of moments. The articles on these subjects have been contributed by leading area experts, many of whom were associated with Carl Pearcy as students or collaborators. The book testifies to his multifaceted interests and includes a biographical sketch and a list of publications.


Book Synopsis Nonselfadjoint Operator Algebras, Operator Theory, and Related Topics by : H. Bercovicii

Download or read book Nonselfadjoint Operator Algebras, Operator Theory, and Related Topics written by H. Bercovicii and published by Birkhäuser. This book was released on 2012-12-06 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume, dedicated to Carl Pearcy on the occasion of his 60th birthday, presents recent results in operator theory, nonselfadjoint operator algebras, measure theory and the theory of moments. The articles on these subjects have been contributed by leading area experts, many of whom were associated with Carl Pearcy as students or collaborators. The book testifies to his multifaceted interests and includes a biographical sketch and a list of publications.


Number Theory and Combinatorics

Number Theory and Combinatorics

Author: Bruce M. Landman

Publisher: Walter de Gruyter GmbH & Co KG

Published: 2022-04-19

Total Pages: 388

ISBN-13: 3110754266

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Over a career that spanned 60 years, Ronald L. Graham (known to all as Ron) made significant contributions to the fields of discrete mathematics, number theory, Ramsey theory, computational geometry, juggling and magical mathematics, and many more. Ron also was a mentor to generations of mathematicians, he gave countless talks and helped bring mathematics to a wider audience, and he held signifi cant leadership roles in the mathematical community. This volume is dedicated to the life and memory of Ron Graham, and includes 20-articles by leading scientists across a broad range of subjects that refl ect some of the many areas in which Ron worked.


Book Synopsis Number Theory and Combinatorics by : Bruce M. Landman

Download or read book Number Theory and Combinatorics written by Bruce M. Landman and published by Walter de Gruyter GmbH & Co KG. This book was released on 2022-04-19 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over a career that spanned 60 years, Ronald L. Graham (known to all as Ron) made significant contributions to the fields of discrete mathematics, number theory, Ramsey theory, computational geometry, juggling and magical mathematics, and many more. Ron also was a mentor to generations of mathematicians, he gave countless talks and helped bring mathematics to a wider audience, and he held signifi cant leadership roles in the mathematical community. This volume is dedicated to the life and memory of Ron Graham, and includes 20-articles by leading scientists across a broad range of subjects that refl ect some of the many areas in which Ron worked.


Handbook of Analytic Operator Theory

Handbook of Analytic Operator Theory

Author: Kehe Zhu

Publisher: CRC Press

Published: 2019-05-10

Total Pages: 360

ISBN-13: 1351045547

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Handbook of Analytic Operator Theory thoroughly covers the subject of holomorphic function spaces and operators acting on them. The spaces covered include Bergman spaces, Hardy spaces, Fock spaces and the Drury-Averson space. Operators discussed in the book include Toeplitz operators, Hankel operators, composition operators, and Cowen-Douglas class operators. The volume consists of eleven articles in the general area of analytic function spaces and operators on them. Each contributor focuses on one particular topic, for example, operator theory on the Drury-Aversson space, and presents the material in the form of a survey paper which contains all the major results in the area and includes all relevant references. The overalp between this volume and existing books in the area is minimal. The material on two-variable weighted shifts by Curto, the Drury-Averson space by Fang and Xia, the Cowen-Douglas class by Misra, and operator theory on the bi-disk by Yang has never appeared in book form before. Features: The editor of the handbook is a widely known and published researcher on this topic The handbook's contributors are a who's=who of top researchers in the area The first contributed volume on these diverse topics


Book Synopsis Handbook of Analytic Operator Theory by : Kehe Zhu

Download or read book Handbook of Analytic Operator Theory written by Kehe Zhu and published by CRC Press. This book was released on 2019-05-10 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Analytic Operator Theory thoroughly covers the subject of holomorphic function spaces and operators acting on them. The spaces covered include Bergman spaces, Hardy spaces, Fock spaces and the Drury-Averson space. Operators discussed in the book include Toeplitz operators, Hankel operators, composition operators, and Cowen-Douglas class operators. The volume consists of eleven articles in the general area of analytic function spaces and operators on them. Each contributor focuses on one particular topic, for example, operator theory on the Drury-Aversson space, and presents the material in the form of a survey paper which contains all the major results in the area and includes all relevant references. The overalp between this volume and existing books in the area is minimal. The material on two-variable weighted shifts by Curto, the Drury-Averson space by Fang and Xia, the Cowen-Douglas class by Misra, and operator theory on the bi-disk by Yang has never appeared in book form before. Features: The editor of the handbook is a widely known and published researcher on this topic The handbook's contributors are a who's=who of top researchers in the area The first contributed volume on these diverse topics


Analysis of Operators on Function Spaces

Analysis of Operators on Function Spaces

Author: Alexandru Aleman

Publisher: Springer

Published: 2019-05-30

Total Pages: 281

ISBN-13: 3030146405

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This book contains both expository articles and original research in the areas of function theory and operator theory. The contributions include extended versions of some of the lectures by invited speakers at the conference in honor of the memory of Serguei Shimorin at the Mittag-Leffler Institute in the summer of 2018. The book is intended for all researchers in the fields of function theory, operator theory and complex analysis in one or several variables. The expository articles reflecting the current status of several well-established and very dynamical areas of research will be accessible and useful to advanced graduate students and young researchers in pure and applied mathematics, and also to engineers and physicists using complex analysis methods in their investigations.


Book Synopsis Analysis of Operators on Function Spaces by : Alexandru Aleman

Download or read book Analysis of Operators on Function Spaces written by Alexandru Aleman and published by Springer. This book was released on 2019-05-30 with total page 281 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains both expository articles and original research in the areas of function theory and operator theory. The contributions include extended versions of some of the lectures by invited speakers at the conference in honor of the memory of Serguei Shimorin at the Mittag-Leffler Institute in the summer of 2018. The book is intended for all researchers in the fields of function theory, operator theory and complex analysis in one or several variables. The expository articles reflecting the current status of several well-established and very dynamical areas of research will be accessible and useful to advanced graduate students and young researchers in pure and applied mathematics, and also to engineers and physicists using complex analysis methods in their investigations.


The Defect Relation of Meromorphic Maps on Parabolic Manifolds

The Defect Relation of Meromorphic Maps on Parabolic Manifolds

Author: George Lawrence Ashline

Publisher: American Mathematical Soc.

Published: 1999

Total Pages: 78

ISBN-13: 0821810693

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This book is intended for graduate students and research mathematicians working in several complex variables and analytic spaces.


Book Synopsis The Defect Relation of Meromorphic Maps on Parabolic Manifolds by : George Lawrence Ashline

Download or read book The Defect Relation of Meromorphic Maps on Parabolic Manifolds written by George Lawrence Ashline and published by American Mathematical Soc.. This book was released on 1999 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is intended for graduate students and research mathematicians working in several complex variables and analytic spaces.