Boundary Value Problems, Weyl Functions, and Differential Operators

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Publisher : Springer Nature
ISBN 13 : 3030367142
Total Pages : 772 pages
Book Rating : 4.45/5 ( download)

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Book Synopsis Boundary Value Problems, Weyl Functions, and Differential Operators by : Jussi Behrndt

Download or read book Boundary Value Problems, Weyl Functions, and Differential Operators written by Jussi Behrndt and published by Springer Nature. This book was released on 2020-01-03 with total page 772 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book presents a comprehensive survey of modern operator techniques for boundary value problems and spectral theory, employing abstract boundary mappings and Weyl functions. It includes self-contained treatments of the extension theory of symmetric operators and relations, spectral characterizations of selfadjoint operators in terms of the analytic properties of Weyl functions, form methods for semibounded operators, and functional analytic models for reproducing kernel Hilbert spaces. Further, it illustrates these abstract methods for various applications, including Sturm-Liouville operators, canonical systems of differential equations, and multidimensional Schrödinger operators, where the abstract Weyl function appears as either the classical Titchmarsh-Weyl coefficient or the Dirichlet-to-Neumann map. The book is a valuable reference text for researchers in the areas of differential equations, functional analysis, mathematical physics, and system theory. Moreover, thanks to its detailed exposition of the theory, it is also accessible and useful for advanced students and researchers in other branches of natural sciences and engineering.

Understanding Boundary Value Problems, Weyl Functions and Differential Operators: Volume 3

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Publisher : Murphy & Moore Publishing
ISBN 13 : 9781639875498
Total Pages : 275 pages
Book Rating : 4.92/5 ( download)

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Book Synopsis Understanding Boundary Value Problems, Weyl Functions and Differential Operators: Volume 3 by : Williams Gerald

Download or read book Understanding Boundary Value Problems, Weyl Functions and Differential Operators: Volume 3 written by Williams Gerald and published by Murphy & Moore Publishing. This book was released on 2021-11-16 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt: Boundary value problems are differential equations with a set of additional constraints, called the boundary conditions. A solution which satisfies the boundary conditions is a solution to the boundary value problem and the differential equation. The Weyl distance function behaves in some ways like the distance function of a metric space. It takes values in a group of reflections, instead of taking values in the positive real numbers. This group of reflections is called the Weyl group. A differential operator is a function of the differentiation operator, also known as the derivative. Differentiation can be considered as an abstract operation that accepts a function and returns another function. This book provides significant information of this discipline to help develop a good understanding of boundary value problems, Weyl functions, differential operators and related fields. It presents this complex subject in the most comprehensible and easy to understand language. Constant effort has been made in this book, using case studies and examples, to make the understanding of these difficult concepts of mathematics as easy and informative as possible to the readers.

Understanding Boundary Value Problems, Weyl Functions and Differential Operators: Volume 1

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Author :
Publisher : Murphy & Moore Publishing
ISBN 13 : 9781639875474
Total Pages : 233 pages
Book Rating : 4.76/5 ( download)

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Book Synopsis Understanding Boundary Value Problems, Weyl Functions and Differential Operators: Volume 1 by : Williams Gerald

Download or read book Understanding Boundary Value Problems, Weyl Functions and Differential Operators: Volume 1 written by Williams Gerald and published by Murphy & Moore Publishing. This book was released on 2021-11-16 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: Boundary value problems are differential equations with a set of additional constraints, called the boundary conditions. A solution which satisfies the boundary conditions is a solution to the boundary value problem and the differential equation. The Weyl distance function behaves in some ways like the distance function of a metric space. It takes values in a group of reflections, instead of taking values in the positive real numbers. This group of reflections is called the Weyl group. A differential operator is a function of the differentiation operator, also known as the derivative. Differentiation can be considered as an abstract operation that accepts a function and returns another function. This book provides significant information of this discipline to help develop a good understanding of boundary value problems, Weyl functions, differential operators and related fields. It presents this complex subject in the most comprehensible and easy to understand language. Constant effort has been made in this book, using case studies and examples, to make the understanding of these difficult concepts of mathematics as easy and informative as possible to the readers.

Understanding Boundary Value Problems, Weyl Functions and Differential Operators: Volume 2

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Author :
Publisher : Murphy & Moore Publishing
ISBN 13 : 9781639875481
Total Pages : 286 pages
Book Rating : 4.84/5 ( download)

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Book Synopsis Understanding Boundary Value Problems, Weyl Functions and Differential Operators: Volume 2 by : Williams Gerald

Download or read book Understanding Boundary Value Problems, Weyl Functions and Differential Operators: Volume 2 written by Williams Gerald and published by Murphy & Moore Publishing. This book was released on 2021-11-16 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: Boundary value problems are differential equations with a set of additional constraints, called the boundary conditions. A solution which satisfies the boundary conditions is a solution to the boundary value problem and the differential equation. The Weyl distance function behaves in some ways like the distance function of a metric space. It takes values in a group of reflections, instead of taking values in the positive real numbers. This group of reflections is called the Weyl group. A differential operator is a function of the differentiation operator, also known as the derivative. Differentiation can be considered as an abstract operation that accepts a function and returns another function. This book provides significant information of this discipline to help develop a good understanding of boundary value problems, Weyl functions, differential operators and related fields. It presents this complex subject in the most comprehensible and easy to understand language. Constant effort has been made in this book, using case studies and examples, to make the understanding of these difficult concepts of mathematics as easy and informative as possible to the readers.

Operator Methods for Boundary Value Problems

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Author :
Publisher : Cambridge University Press
ISBN 13 : 1139561316
Total Pages : 297 pages
Book Rating : 4.10/5 ( download)

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Book Synopsis Operator Methods for Boundary Value Problems by : Seppo Hassi

Download or read book Operator Methods for Boundary Value Problems written by Seppo Hassi and published by Cambridge University Press. This book was released on 2012-10-11 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presented in this volume are a number of new results concerning the extension theory and spectral theory of unbounded operators using the recent notions of boundary triplets and boundary relations. This approach relies on linear single-valued and multi-valued maps, isometric in a Krein space sense, and offers a basic framework for recent developments in system theory. Central to the theory are analytic tools such as Weyl functions, including Titchmarsh-Weyl m-functions and Dirichlet-to-Neumann maps. A wide range of topics is considered in this context from the abstract to the applied, including boundary value problems for ordinary and partial differential equations; infinite-dimensional perturbations; local point-interactions; boundary and passive control state/signal systems; extension theory of accretive, sectorial and symmetric operators; and Calkin's abstract boundary conditions. This accessible treatment of recent developments, written by leading researchers, will appeal to a broad range of researchers, students and professionals.

Boundary Value Problems with Global Projection Conditions

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Publisher : Birkhäuser
ISBN 13 : 3319701142
Total Pages : 410 pages
Book Rating : 4.41/5 ( download)

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Book Synopsis Boundary Value Problems with Global Projection Conditions by : Xiaochun Liu

Download or read book Boundary Value Problems with Global Projection Conditions written by Xiaochun Liu and published by Birkhäuser. This book was released on 2018-10-30 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents boundary value problems for arbitrary elliptic pseudo-differential operators on a smooth compact manifold with boundary. In this regard, every operator admits global projection boundary conditions, giving rise to analogues of Toeplitz operators in subspaces of Sobolev spaces on the boundary associated with pseudo-differential projections. The book describes how these operator classes form algebras, and establishes the concept for Boutet de Monvel’s calculus, as well as for operators on manifolds with edges, including the case of operators without the transmission property. Further, it shows how the calculus contains parametrices of elliptic elements. Lastly, the book describes natural connections to ellipticity of Atiyah-Patodi-Singer type for Dirac and other geometric operators, in particular spectral boundary conditions with Calderón-Seeley projections and the characterization of Cauchy data spaces.

Boundary Value Problems of Mathematical Physics

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Publisher : SIAM
ISBN 13 : 0898714567
Total Pages : 1156 pages
Book Rating : 4.62/5 ( download)

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Book Synopsis Boundary Value Problems of Mathematical Physics by : Ivar Stakgold

Download or read book Boundary Value Problems of Mathematical Physics written by Ivar Stakgold and published by SIAM. This book was released on 2000-06-30 with total page 1156 pages. Available in PDF, EPUB and Kindle. Book excerpt: For more than 30 years, this two-volume set has helped prepare graduate students to use partial differential equations and integral equations to handle significant problems arising in applied mathematics, engineering, and the physical sciences. Originally published in 1967, this graduate-level introduction is devoted to the mathematics needed for the modern approach to boundary value problems using Green's functions and using eigenvalue expansions. Now a part of SIAM's Classics series, these volumes contain a large number of concrete, interesting examples of boundary value problems for partial differential equations that cover a variety of applications that are still relevant today. For example, there is substantial treatment of the Helmholtz equation and scattering theory?subjects that play a central role in contemporary inverse problems in acoustics and electromagnetic theory.

Boundary Value Problems for Operator Differential Equations

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Author :
Publisher : Springer Science & Business Media
ISBN 13 : 9401137145
Total Pages : 359 pages
Book Rating : 4.40/5 ( download)

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Book Synopsis Boundary Value Problems for Operator Differential Equations by : Myroslav L. Gorbachuk

Download or read book Boundary Value Problems for Operator Differential Equations written by Myroslav L. Gorbachuk and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Boundary Value Problems for Elliptic Systems

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Publisher : Cambridge University Press
ISBN 13 : 0521430119
Total Pages : 659 pages
Book Rating : 4.11/5 ( download)

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Book Synopsis Boundary Value Problems for Elliptic Systems by : J. T. Wloka

Download or read book Boundary Value Problems for Elliptic Systems written by J. T. Wloka and published by Cambridge University Press. This book was released on 1995-07-28 with total page 659 pages. Available in PDF, EPUB and Kindle. Book excerpt: The theory of boundary value problems for elliptic systems of partial differential equations has many applications in mathematics and the physical sciences. The aim of this book is to "algebraize" the index theory by means of pseudo-differential operators and new methods in the spectral theory of matrix polynomials. This latter theory provides important tools that will enable the student to work efficiently with the principal symbols of the elliptic and boundary operators on the boundary. Because many new methods and results are introduced and used throughout the book, all the theorems are proved in detail, and the methods are well illustrated through numerous examples and exercises. This book is ideal for use in graduate level courses on partial differential equations, elliptic systems, pseudo-differential operators, and matrix analysis.

An Introduction to Nonlinear Boundary Value Problems

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Publisher : Academic Press
ISBN 13 : 0080956181
Total Pages : 399 pages
Book Rating : 4.83/5 ( download)

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Book Synopsis An Introduction to Nonlinear Boundary Value Problems by : Lakshmikantham

Download or read book An Introduction to Nonlinear Boundary Value Problems written by Lakshmikantham and published by Academic Press. This book was released on 1974-05-31 with total page 399 pages. Available in PDF, EPUB and Kindle. Book excerpt: A book on an advanced level that exposes the reader to the fascinating field of differential equations and provides a ready access to an up-to-date state of this art is of immense value. This book presents a variety of techniques that are employed in the theory of nonlinear boundary value problems. For example, the following are discussed: methods that involve differential inequalities; shooting and angular function techniques; functional analytic approaches; topological methods.