Forward and Inverse Problems for Hyperbolic, Elliptic and Mixed Type Equations

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Publisher : Walter de Gruyter
ISBN 13 : 3110944987
Total Pages : 244 pages
Book Rating : 4.1/5 (19 download)

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Book Synopsis Forward and Inverse Problems for Hyperbolic, Elliptic and Mixed Type Equations by : Alexander G. Megrabov

Download or read book Forward and Inverse Problems for Hyperbolic, Elliptic and Mixed Type Equations written by Alexander G. Megrabov and published by Walter de Gruyter. This book was released on 2012-05-24 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inverse problems are an important and rapidly developing direction in mathematics, mathematical physics, differential equations, and various applied technologies (geophysics, optic, tomography, remote sensing, radar-location, etc.). In this monograph direct and inverse problems for partial differential equations are considered. The type of equations focused are hyperbolic, elliptic, and mixed (elliptic-hyperbolic). The direct problems arise as generalizations of problems of scattering plane elastic or acoustic waves from inhomogeneous layer (or from half-space). The inverse problems are those of determination of medium parameters by giving the forms of incident and reflected waves or the vibrations of certain points of the medium. The method of research of all inverse problems is spectral-analytical, consisting in reducing the considered inverse problems to the known inverse problems for the Sturm-Liouville equation or the string equation. Besides the book considers discrete inverse problems. In these problems an arbitrary set of point sources (emissive sources, oscillators, point masses) is determined.

Forward and Inverse Problems for Hyperbolic, Elliptic and Mixed Type Equations

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Author :
Publisher :
ISBN 13 : 9783110628135
Total Pages : pages
Book Rating : 4.6/5 (281 download)

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Book Synopsis Forward and Inverse Problems for Hyperbolic, Elliptic and Mixed Type Equations by : A. G. Megrabov

Download or read book Forward and Inverse Problems for Hyperbolic, Elliptic and Mixed Type Equations written by A. G. Megrabov and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Direct Methods of Solving Multidimensional Inverse Hyperbolic Problems

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Author :
Publisher : Walter de Gruyter
ISBN 13 : 3110960710
Total Pages : 188 pages
Book Rating : 4.1/5 (19 download)

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Book Synopsis Direct Methods of Solving Multidimensional Inverse Hyperbolic Problems by : Sergey I. Kabanikhin

Download or read book Direct Methods of Solving Multidimensional Inverse Hyperbolic Problems written by Sergey I. Kabanikhin and published by Walter de Gruyter. This book was released on 2013-04-09 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors consider dynamic types of inverse problems in which the additional information is given by the trace of the direct problem on a (usually time-like) surface of the domain. They discuss theoretical and numerical background of the finite-difference scheme inversion, the linearization method, the method of Gel'fand-Levitan-Krein, the boundary control method, and the projection method and prove theorems of convergence, conditional stability, and other properties of the mentioned methods.

Linear Sobolev Type Equations and Degenerate Semigroups of Operators

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Publisher : Walter de Gruyter
ISBN 13 : 3110915502
Total Pages : 224 pages
Book Rating : 4.1/5 (19 download)

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Book Synopsis Linear Sobolev Type Equations and Degenerate Semigroups of Operators by : Georgy A. Sviridyuk

Download or read book Linear Sobolev Type Equations and Degenerate Semigroups of Operators written by Georgy A. Sviridyuk and published by Walter de Gruyter. This book was released on 2012-06-04 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focusing on the mathematics, and providing only a minimum of explicatory comment, this volume contains six chapters covering auxiliary material, relatively p-radial operators, relatively p-sectorial operators, relatively σ-bounded operators, Cauchy problems for inhomogenous Sobolev-type equations, bounded solutions to Sobolev-type equations, and optimal control.

Inverse Problems of Mathematical Physics

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Author :
Publisher : Walter de Gruyter
ISBN 13 : 3110915529
Total Pages : 288 pages
Book Rating : 4.1/5 (19 download)

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Book Synopsis Inverse Problems of Mathematical Physics by : Mikhail M. Lavrent'ev

Download or read book Inverse Problems of Mathematical Physics written by Mikhail M. Lavrent'ev and published by Walter de Gruyter. This book was released on 2012-05-07 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph deals with the theory of inverse problems of mathematical physics and applications of such problems. Besides it considers applications and numerical methods of solving the problems under study. Descriptions of particular numerical experiments are also included.

Carleman Estimates for Coefficient Inverse Problems and Numerical Applications

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Author :
Publisher : Walter de Gruyter
ISBN 13 : 3110915545
Total Pages : 292 pages
Book Rating : 4.1/5 (19 download)

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Book Synopsis Carleman Estimates for Coefficient Inverse Problems and Numerical Applications by : Michael V. Klibanov

Download or read book Carleman Estimates for Coefficient Inverse Problems and Numerical Applications written by Michael V. Klibanov and published by Walter de Gruyter. This book was released on 2012-04-17 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this monograph, the main subject of the author's considerations is coefficient inverse problems. Arising in many areas of natural sciences and technology, such problems consist of determining the variable coefficients of a certain differential operator defined in a domain from boundary measurements of a solution or its functionals. Although the authors pay strong attention to the rigorous justification of known results, they place the primary emphasis on new concepts and developments.

Well-posed, Ill-posed, and Intermediate Problems with Applications

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Author :
Publisher : Walter de Gruyter
ISBN 13 : 3110195305
Total Pages : 245 pages
Book Rating : 4.1/5 (11 download)

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Book Synopsis Well-posed, Ill-posed, and Intermediate Problems with Applications by : Petrov Yuri P.

Download or read book Well-posed, Ill-posed, and Intermediate Problems with Applications written by Petrov Yuri P. and published by Walter de Gruyter. This book was released on 2011-12-22 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with one of the key problems in applied mathematics, namely the investigation into and providing for solution stability in solving equations with due allowance for inaccuracies in set initial data, parameters and coefficients of a mathematical model for an object under study, instrumental function, initial conditions, etc., and also with allowance for miscalculations, including roundoff errors. Until recently, all problems in mathematics, physics and engineering were divided into two classes: well-posed problems and ill-posed problems. The authors introduce a third class of problems: intermediate ones, which are problems that change their property of being well- or ill-posed on equivalent transformations of governing equations, and also problems that display the property of being either well- or ill-posed depending on the type of the functional space used. The book is divided into two parts: Part one deals with general properties of all three classes of mathematical, physical and engineering problems with approaches to solve them; Part two deals with several stable models for solving inverse ill-posed problems, illustrated with numerical examples.

Operator Theory and Ill-Posed Problems

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Author :
Publisher : Walter de Gruyter
ISBN 13 : 3110960729
Total Pages : 697 pages
Book Rating : 4.1/5 (19 download)

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Book Synopsis Operator Theory and Ill-Posed Problems by : Mikhail M. Lavrent'ev

Download or read book Operator Theory and Ill-Posed Problems written by Mikhail M. Lavrent'ev and published by Walter de Gruyter. This book was released on 2011-12-22 with total page 697 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book consists of three major parts. The first two parts deal with general mathematical concepts and certain areas of operator theory. The third part is devoted to ill-posed problems. It can be read independently of the first two parts and presents a good example of applying the methods of calculus and functional analysis. The first part "Basic Concepts" briefly introduces the language of set theory and concepts of abstract, linear and multilinear algebra. Also introduced are the language of topology and fundamental concepts of calculus: the limit, the differential, and the integral. A special section is devoted to analysis on manifolds. The second part "Operators" describes the most important function spaces and operator classes for both linear and nonlinear operators. Different kinds of generalized functions and their transformations are considered. Elements of the theory of linear operators are presented. Spectral theory is given a special focus. The third part "Ill-Posed Problems" is devoted to problems of mathematical physics, integral and operator equations, evolution equations and problems of integral geometry. It also deals with problems of analytic continuation. Detailed coverage of the subjects and numerous examples and exercises make it possible to use the book as a textbook on some areas of calculus and functional analysis. It can also be used as a reference textbook because of the extensive scope and detailed references with comments.

Operator Theory and Differential Equations

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Author :
Publisher : Springer Nature
ISBN 13 : 3030497631
Total Pages : 337 pages
Book Rating : 4.0/5 (34 download)

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Book Synopsis Operator Theory and Differential Equations by : Anatoly G. Kusraev

Download or read book Operator Theory and Differential Equations written by Anatoly G. Kusraev and published by Springer Nature. This book was released on 2021-01-13 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume features selected papers from The Fifteenth International Conference on Order Analysis and Related Problems of Mathematical Modeling, which was held in Vladikavkaz, Russia, on 15 - 20th July 2019. Intended for mathematicians specializing in operator theory, functional spaces, differential equations or mathematical modeling, the book provides a state-of-the-art account of various fascinating areas of operator theory, ranging from various classes of operators (positive operators, convolution operators, backward shift operators, singular and fractional integral operators, partial differential operators) to important applications in differential equations, inverse problems, approximation theory, metric theory of surfaces, the Hubbard model, social stratification models, and viscid incompressible fluids.

Ill-Posed Boundary-Value Problems

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Publisher : Walter de Gruyter
ISBN 13 : 3110915510
Total Pages : 152 pages
Book Rating : 4.1/5 (19 download)

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Book Synopsis Ill-Posed Boundary-Value Problems by : Serikkali E. Temirbolat

Download or read book Ill-Posed Boundary-Value Problems written by Serikkali E. Temirbolat and published by Walter de Gruyter. This book was released on 2012-06-04 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph extends well-known facts to new classes of problems and works out novel approaches to the solution of these problems. It is devoted to the questions of ill-posed boundary-value problems for systems of various types of the first-order differential equations with constant coefficients and the methods for their solution.

Characterisation of Bio-Particles from Light Scattering

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Publisher : Walter de Gruyter
ISBN 13 : 3110915553
Total Pages : 144 pages
Book Rating : 4.1/5 (19 download)

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Book Synopsis Characterisation of Bio-Particles from Light Scattering by : Valeri P. Maltsev

Download or read book Characterisation of Bio-Particles from Light Scattering written by Valeri P. Maltsev and published by Walter de Gruyter. This book was released on 2013-03-01 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary aim of this monograph is to provide a systematic state-of-the-art summary of the light scattering of bioparticles, including a brief consideration of analytical and numerical methods for computing electromagnetic scattering by single particles, a detailed discussion of the instrumental approach used in measurement of light scattering, an analysis of the methods used in solution of the inverse light scattering problem, and an introduction of the results dealing with practical analysis of biosamples. Considering the widespread need for this information in optics, remote sensing, engineering, medicine, and biology, the book is useful to many graduate students, scientists, and engineers working on various aspects of electromagnetic scattering and its applications.

Counterexamples in Optimal Control Theory

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Publisher : Walter de Gruyter
ISBN 13 : 3110915537
Total Pages : 185 pages
Book Rating : 4.1/5 (19 download)

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Book Synopsis Counterexamples in Optimal Control Theory by : Semen Ya. Serovaiskii

Download or read book Counterexamples in Optimal Control Theory written by Semen Ya. Serovaiskii and published by Walter de Gruyter. This book was released on 2011-12-01 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph deals with cases where optimal control either does not exist or is not unique, cases where optimality conditions are insufficient of degenerate, or where extremum problems in the sense of Tikhonov and Hadamard are ill-posed, and other situations. A formal application of classical optimisation methods in such cases either leads to wrong results or has no effect. The detailed analysis of these examples should provide a better understanding of the modern theory of optimal control and the practical difficulties of solving extremum problems.

Ill-Posed and Non-Classical Problems of Mathematical Physics and Analysis

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Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 3110936526
Total Pages : 216 pages
Book Rating : 4.1/5 (19 download)

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Book Synopsis Ill-Posed and Non-Classical Problems of Mathematical Physics and Analysis by : Mikhail M. Lavrent'ev

Download or read book Ill-Posed and Non-Classical Problems of Mathematical Physics and Analysis written by Mikhail M. Lavrent'ev and published by Walter de Gruyter GmbH & Co KG. This book was released on 2014-07-24 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: These proceedings of the international Conference "Ill-Posed and Non-Classical Problems of Mathematical Physics and Analysis", held at the Samarkand State University, Uzbekistan in September 2000 bring together fundamental research articles in the major areas of the numerated fields of analysis and mathematical physics. The book covers the following topics: theory of ill-posed problems inverse problems for differential equations boundary value problems for equations of mixed type integral geometry mathematical modelling and numerical methods in natural sciences

Composite Type Equations and Inverse Problems

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Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 3110943271
Total Pages : 184 pages
Book Rating : 4.1/5 (19 download)

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Book Synopsis Composite Type Equations and Inverse Problems by : A. I. Kozhanov

Download or read book Composite Type Equations and Inverse Problems written by A. I. Kozhanov and published by Walter de Gruyter GmbH & Co KG. This book was released on 2014-07-24 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Inverse and Ill-Posed Problems Series is a series of monographs publishing postgraduate level information on inverse and ill-posed problems for an international readership of professional scientists and researchers. The series aims to publish works which involve both theory and applications in, e.g., physics, medicine, geophysics, acoustics, electrodynamics, tomography, and ecology.

Inverse Problems for Fractional Partial Differential Equations

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Publisher : American Mathematical Society
ISBN 13 : 1470472775
Total Pages : 522 pages
Book Rating : 4.4/5 (74 download)

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Book Synopsis Inverse Problems for Fractional Partial Differential Equations by : Barbara Kaltenbacher

Download or read book Inverse Problems for Fractional Partial Differential Equations written by Barbara Kaltenbacher and published by American Mathematical Society. This book was released on 2023-07-13 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the title of the book indicates, this is primarily a book on partial differential equations (PDEs) with two definite slants: toward inverse problems and to the inclusion of fractional derivatives. The standard paradigm, or direct problem, is to take a PDE, including all coefficients and initial/boundary conditions, and to determine the solution. The inverse problem reverses this approach asking what information about coefficients of the model can be obtained from partial information on the solution. Answering this question requires knowledge of the underlying physical model, including the exact dependence on material parameters. The last feature of the approach taken by the authors is the inclusion of fractional derivatives. This is driven by direct physical applications: a fractional derivative model often allows greater adherence to physical observations than the traditional integer order case. The book also has an extensive historical section and the material that can be called "fractional calculus" and ordinary differential equations with fractional derivatives. This part is accessible to advanced undergraduates with basic knowledge on real and complex analysis. At the other end of the spectrum, lie nonlinear fractional PDEs that require a standard graduate level course on PDEs.

Elliptic, Hyperbolic and Mixed Complex Equations with Parabolic Degeneracy

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Publisher : World Scientific
ISBN 13 : 9812779434
Total Pages : 453 pages
Book Rating : 4.8/5 (127 download)

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Book Synopsis Elliptic, Hyperbolic and Mixed Complex Equations with Parabolic Degeneracy by : Guo Chun Wen

Download or read book Elliptic, Hyperbolic and Mixed Complex Equations with Parabolic Degeneracy written by Guo Chun Wen and published by World Scientific. This book was released on 2008 with total page 453 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the recent half-century, many mathematicians have investigated various problems on several equations of mixed type and obtained interesting results, with important applications to gas dynamics. However, the Tricomi problem of general mixed type equations of second order with parabolic degeneracy has not been completely solved, particularly the Tricomi and Frankl problems for general Chaplygin equation in multiply connected domains posed by L Bers, and the existence, regularity of solutions of the above problems for mixed equations with non-smooth degenerate curve in several domains posed by J M Rassias. The method revealed in this book is unlike any other, in which the hyperbolic number and hyperbolic complex function in hyperbolic domains, and the complex number and complex function in elliptic domains are used. The corresponding problems for first order complex equations with singular coefficients are first discussed, and then the problems for second order complex equations are considered, where we pose the new partial derivative notations and complex analytic methods such that the forms of the above first order complex equations in hyperbolic and elliptic domains are wholly identical. In the meantime, the estimates of solutions for the above problems are obtained, hence many open problems including the above TricomiOCo Bers and TricomiOCoFranklOCoRassias problems can be solved. Sample Chapter(s). Chapter 1: Elliptic Complex Equations of First Order (247 KB). Contents: Elliptic Complex Equations of First Order; Elliptic Complex Equations of Second Order; Hyperbolic Complex Equations of First and Second Orders; First Order Complex Equations of Mixed Type; Second Order Linear Equations of Mixed Type; Second Order Quasilinear Equations of Mixed Type. Readership: Graduate students and academics in analysis, differential equations and applied mathematics.

Mathematical Reviews

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Publisher :
ISBN 13 :
Total Pages : 860 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Mathematical Reviews by :

Download or read book Mathematical Reviews written by and published by . This book was released on 2007 with total page 860 pages. Available in PDF, EPUB and Kindle. Book excerpt: