Linear Differential Operators

Linear Differential Operators PDF Author: Cornelius Lanczos
Publisher: SIAM
ISBN: 9781611971187
Category : Mathematics
Languages : en
Pages : 581

Get Book Here

Book Description
Originally published in 1961, this Classics edition continues to be appealing because it describes a large number of techniques still useful today. Although the primary focus is on the analytical theory, concrete cases are cited to forge the link between theory and practice. Considerable manipulative skill in the practice of differential equations is to be developed by solving the 350 problems in the text. The problems are intended as stimulating corollaries linking theory with application and providing the reader with the foundation for tackling more difficult problems. Lanczos begins with three introductory chapters that explore some of the technical tools needed later in the book, and then goes on to discuss interpolation, harmonic analysis, matrix calculus, the concept of the function space, boundary value problems, and the numerical solution of trajectory problems, among other things. The emphasis is constantly on one question: "What are the basic and characteristic properties of linear differential operators?" In the author's words, this book is written for those "to whom a problem in ordinary or partial differential equations is not a problem of logical acrobatism, but a problem in the exploration of the physical universe. To get an explicit solution of a given boundary value problem is in this age of large electronic computers no longer a basic question. But of what value is the numerical answer if the scientist does not understand the peculiar analytical properties and idiosyncrasies of the given operator? The author hopes that this book will help in this task by telling something about the manifold aspects of a fascinating field."

Linear Differential Operators

Linear Differential Operators PDF Author: Cornelius Lanczos
Publisher: SIAM
ISBN: 9781611971187
Category : Mathematics
Languages : en
Pages : 581

Get Book Here

Book Description
Originally published in 1961, this Classics edition continues to be appealing because it describes a large number of techniques still useful today. Although the primary focus is on the analytical theory, concrete cases are cited to forge the link between theory and practice. Considerable manipulative skill in the practice of differential equations is to be developed by solving the 350 problems in the text. The problems are intended as stimulating corollaries linking theory with application and providing the reader with the foundation for tackling more difficult problems. Lanczos begins with three introductory chapters that explore some of the technical tools needed later in the book, and then goes on to discuss interpolation, harmonic analysis, matrix calculus, the concept of the function space, boundary value problems, and the numerical solution of trajectory problems, among other things. The emphasis is constantly on one question: "What are the basic and characteristic properties of linear differential operators?" In the author's words, this book is written for those "to whom a problem in ordinary or partial differential equations is not a problem of logical acrobatism, but a problem in the exploration of the physical universe. To get an explicit solution of a given boundary value problem is in this age of large electronic computers no longer a basic question. But of what value is the numerical answer if the scientist does not understand the peculiar analytical properties and idiosyncrasies of the given operator? The author hopes that this book will help in this task by telling something about the manifold aspects of a fascinating field."

Fundamental Solutions of Linear Partial Differential Operators

Fundamental Solutions of Linear Partial Differential Operators PDF Author: Norbert Ortner
Publisher: Springer
ISBN: 3319201409
Category : Mathematics
Languages : en
Pages : 407

Get Book Here

Book Description
This monograph provides the theoretical foundations needed for the construction of fundamental solutions and fundamental matrices of (systems of) linear partial differential equations. Many illustrative examples also show techniques for finding such solutions in terms of integrals. Particular attention is given to developing the fundamentals of distribution theory, accompanied by calculations of fundamental solutions. The main part of the book deals with existence theorems and uniqueness criteria, the method of parameter integration, the investigation of quasihyperbolic systems by means of Fourier and Laplace transforms, and the representation of fundamental solutions of homogeneous elliptic operators with the help of Abelian integrals. In addition to rigorous distributional derivations and verifications of fundamental solutions, the book also shows how to construct fundamental solutions (matrices) of many physically relevant operators (systems), in elasticity, thermoelasticity, hexagonal/cubic elastodynamics, for Maxwell’s system and others. The book mainly addresses researchers and lecturers who work with partial differential equations. However, it also offers a valuable resource for students with a solid background in vector calculus, complex analysis and functional analysis.

Linear Differential Operators: Elementary theory of linear differential operators

Linear Differential Operators: Elementary theory of linear differential operators PDF Author: Mark Aronovich Naĭmark
Publisher:
ISBN:
Category : Differential equations, Linear
Languages : en
Pages : 168

Get Book Here

Book Description


Unbounded Linear Operators

Unbounded Linear Operators PDF Author: Seymour Goldberg
Publisher: Courier Corporation
ISBN: 0486453316
Category : Mathematics
Languages : en
Pages : 212

Get Book Here

Book Description
This volume presents a systematic treatment of the theory of unbounded linear operators in normed linear spaces with applications to differential equations. Largely self-contained, it is suitable for advanced undergraduates and graduate students, and it only requires a familiarity with metric spaces and real variable theory. After introducing the elementary theory of normed linear spaces--particularly Hilbert space, which is used throughout the book--the author develops the basic theory of unbounded linear operators with normed linear spaces assumed complete, employing operators assumed closed only when needed. Other topics include strictly singular operators; operators with closed range; perturbation theory, including some of the main theorems that are later applied to ordinary differential operators; and the Dirichlet operator, in which the author outlines the interplay between functional analysis and "hard" classical analysis in the study of elliptic partial differential equations. In addition to its readable style, this book's appeal includes numerous examples and motivations for certain definitions and proofs. Moreover, it employs simple notation, eliminating the need to refer to a list of symbols.

Linear Differential Operators: Linear differential operators in Hilbert space

Linear Differential Operators: Linear differential operators in Hilbert space PDF Author: Mark Aronovich Naĭmark
Publisher:
ISBN:
Category : Differential equations, Linear
Languages : en
Pages : 372

Get Book Here

Book Description


Linear Differential Operators: Elementary theory of linear differential operators

Linear Differential Operators: Elementary theory of linear differential operators PDF Author: Mark Aronovich Naĭmark
Publisher:
ISBN:
Category : Differential equations, Linear
Languages : en
Pages : 168

Get Book Here

Book Description


Unified Theory for Fractional and Entire Differential Operators

Unified Theory for Fractional and Entire Differential Operators PDF Author: Arnaud Rougirel
Publisher: Springer Nature
ISBN: 3031583566
Category :
Languages : en
Pages : 502

Get Book Here

Book Description


Lectures on Linear Partial Differential Equations

Lectures on Linear Partial Differential Equations PDF Author: Grigoriĭ Ilʹich Eskin
Publisher: American Mathematical Soc.
ISBN: 0821852841
Category : Mathematics
Languages : en
Pages : 432

Get Book Here

Book Description
This is a reader-friendly, relatively short introduction to the modern theory of linear partial differential equations. An effort has been made to present complete proofs in an accessible and self-contained form. The first three chapters are on elementary distribution theory and Sobolev spaces. The following chapters study the Cauchy problem for parabolic and hyperbolic equations, boundary value problems for elliptic equations, heat trace asymptotics, and scattering theory.

Linear Differential Operators

Linear Differential Operators PDF Author: Mark Aronovich Naĭmark
Publisher: Burns & Oates
ISBN:
Category : Mathematics
Languages : en
Pages : 378

Get Book Here

Book Description


Elementary Introduction to the Theory of Pseudodifferential Operators

Elementary Introduction to the Theory of Pseudodifferential Operators PDF Author: Xavier Saint Raymond
Publisher: Routledge
ISBN: 1351452924
Category : Mathematics
Languages : en
Pages : 118

Get Book Here

Book Description
In the 19th century, the Fourier transformation was introduced to study various problems of partial differential equations. Since 1960, this old tool has been developed into a well-organized theory called microlocal analysis that is based on the concept of the pseudo-differential operator. This book provides the fundamental knowledge non-specialists need in order to use microlocal analysis. It is strictly mathematical in the sense that it contains precise definitions, statements of theorems and complete proofs, and follows the usual method of pure mathematics. The book explains the origin of the theory (i.e., Fourier transformation), presents an elementary construcion of distribution theory, and features a careful exposition of standard pseudodifferential theory. Exercises, historical notes, and bibliographical references are included to round out this essential book for mathematics students; engineers, physicists, and mathematicians who use partial differential equations; and advanced mathematics instructors.