Download or read book Transient Tunnel Effect and Sommerfeld Problem written by Felix Ali Mehmeti and published by Wiley-VCH. This book was released on 1996-10-24 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: The author investigates the ∠n-time decay of solutions of the Klein-Gordon equation in one space dimension with a semi-infinite potential step and derives a limiting absorption principle for the wave equation in two space dimensions with zero Dirichlet conditions imposed on a half axis. These are model cases for transient waves in media with semi-infinite geometry involving interfaces and cracktips.

Download or read book Transient waves in semi infinite structures written by Felix Ali Mehmeti and published by . This book was released on 1995 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Differential Equations Asymptotic Analysis and Mathematical Physics written by Michael Demuth and published by John Wiley & Sons. This book was released on 1997 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains a collection of original papers, associated with the International Conference on Partial Differential Equations, held in Potsdam, July 29 to August 2, 1996. The conference has taken place every year on a high scientific level since 1991; this event is connected with the activities of the Max Planck Research Group for Partial Differential Equations at Potsdam. Outstanding researchers and specialists from Armenia, Belarus, Belgium, Bulgaria, Canada, China, France, Germany, Great Britain, India, Israel, Italy, Japan, Poland, Romania, Russia, Spain, Sweden, Switzerland, Ukraine, and the USA contribute to this volume. The main topics concern recent progress in partial differential equations, microlocal analysis, pseudo-differential operators on manifolds with singularities, aspects in differential geometry and index theory, operator theory and operator algebras, stochastic spectral analysis, semigroups, Dirichlet forms, Schrodinger operators, semiclassical analysis, and scattering theory.

Download or read book Complex Interval Arithmetic and Its Applications written by Miodrag Petković and published by John Wiley & Sons. This book was released on 1998 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this book is to present formulas and methods developed using complex interval arithmetic. While most of numerical methods described in the literature deal with real intervals and real vectors, there is no systematic study of methods in complex interval arithmetic. The book fills this gap. Several main subjects are considered: outer estimates for the range of complex functions, especially complex centered forms, the best approximations of elementary complex functions by disks, iterative methods for the inclusion by polynomial zeros including their implementation on parallel computers, the analysis of numerical stability of iterative methods by using complex interval arithmetic and numerical computation of curvilinear integrals with error bounds. Mainly new methods are presented developed over the last years, including a lot of very recent results by the authors some of which have not been published before.

Download or read book Functional Analysis and Evolution Equations written by Herbert Amann and published by Springer Science & Business Media. This book was released on 2008-02-28 with total page 643 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gunter Lumer was an outstanding mathematician whose works have great influence on the research community in mathematical analysis and evolution equations. He was at the origin of the breath-taking development the theory of semigroups saw after the pioneering book of Hille and Phillips from 1957. This volume contains invited contributions presenting the state of the art of these topics and reflecting the broad interests of Gunter Lumer.

Download or read book Spectral Theory Mathematical System Theory Evolution Equations Differential and Difference Equations written by Wolfgang Arendt and published by Springer Science & Business Media. This book was released on 2012-06-15 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present volume contains a collection of original research articles and expository contributions on recent developments in operator theory and its multifaceted applications. They cover a wide range of themes from the IWOTA 2010 conference held at the TU Berlin, Germany, including spectral theory, function spaces, mathematical system theory, evolution equations and semigroups, and differential and difference operators. The book encompasses new trends and various modern topics in operator theory, and serves as a useful source of information to mathematicians, scientists and engineers.

Download or read book The Degenerate Oblique Derivative Problem for Elliptic and Parabolic Equations Paper Only See 3527401121 written by Petar R. Popivanov and published by Wiley-VCH. This book was released on 1997-04-17 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Direct and Inverse Electromagnetic Scattering written by A H Serbest and published by CRC Press. This book was released on 1996-11-29 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a review of developments in the fields of direct and inverse electromagnetic wave scattering. Contributions from leading researchers in these fields from all over the world are gathered in this book to discuss the state of the topic and directions for future research, starting from the fundamental structure of wave scattering problems and finishing with an assessment of the impact of this structure in applications

Download or read book Fortschritte der Physik written by and published by . This book was released on 1996 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Partial Differential Equations written by Todor V. Gramchev and published by Wiley-VCH. This book was released on 2000-02-22 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: The applications of methods from microlocal analysis for PDE have been a fast developing area during the last years. The authors, both are well known in the community, publish for the first time some of their research results in a summarized form. The essential point of the approach is the use of the various types of approximate (asymptotic) solutions in the study of differential equations in the smooth and the Gevrey spaces. In this volume, the authors deal with the following themes: Microlocal properties of pseudodifferential operators with multiple characteristics of involutive type in the framework of the Sobolev spaces; Abstract schemes for constructing approximate solutions to linear partial differential equations with characteristics of constant multiplicity m greater than or equal 2 in the framework of Gevrey spaces; Local solvability, hypoellipticity and singular solutions in Gevrey spaces; Global Gevrey solvability on the torus for linear partial differential equations; Applications of asymptotic methods for local (non)solvability for quasihomogeneous operators; Applications of Airy asymptotic solutions to degenerate oblique derivative problems for second order strictly hyperbolic equations; Approximate Gevrey normal forms of analytic involutions and analytic glancing hypersurfaces with applications for effective stability estimates for billiard ball maps.

Download or read book Initial Approximations and Root Finding Methods written by Nikolay V. Kyurkchiev and published by Wiley-VCH. This book was released on 1998-10-27 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polynomials as mathematical objects have been studied extensively for a long time, and the knowledge collected about them is enormous. Polynomials appear in various fields of applied mathematics and engineering, from mathematics of finance up to signal theory or robust control. The calculation of the roots of a polynomial is a basic problems of numerical mathematics. In this book, an update on iterative methods of calculating simultaneously all roots of a polynomial is given: a survey on basic facts, a lot of methods and properties of those methods connected with the classical task of the approximative determination of roots. For the computer determination the choice of the initial approximation is of special importance. Here the authors offers his new ideas and research results of the last decade which facilitate the practical numerical treatment of polynomials.

Download or read book Modern Mathematical Methods in Diffraction Theory and Its Applications in Engineering written by Erhard Meister and published by Peter Lang Gmbh, Internationaler Verlag Der Wissenschaften. This book was released on 1997 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contains papers from a fall 1996 conference commemorating the centenary of A. Sommerfeld's landmark paper that initiated the study of boundary value problems in scattering theory. Topics include applications of ultrasonic diffraction theory to crack detection and characterization, scattering by an orthotropic medium, radiation conditions and uniqueness, recent analytical developments in diffraction theory, and long time asymptotic behavior of solutions to linear and nonlinear wave problems. No index. Annotation copyrighted by Book News, Inc., Portland, OR

Download or read book Journal of analysis and its application written by and published by . This book was released on 1999 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Topics in Torsion Theory written by Paul E. Bland and published by Wiley-VCH. This book was released on 1998-11-30 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Torsion theory provides an umbrella under which many classical properties of rings and modules can be reformulated. The purpose of this book is to provide the reader with a quick introduction to torsion theory and to study selected properties of rings and modules in this setting. The material presented ranges from a torsion theoretical treatment of standard topics in ring and module theory to how previously untreated properties of rings and modules might be dealt with in this setting. The approach has been to develop the material so that classical results can be recovered by selecting an appropriate torsion theory. Simple modules, maximal submodules, the Jacobson radical and modules with chain conditions are investigated relative to a torsion theory. A relative form of Nakayama’s lemma is given and a generalized Hopkins-Levitzki theorem is established. Injective and projective concepts are studied and a generalized Baer’s condition for injective modules and a generalized Fuchs condition for quasi-injective modules are shown to hold. Flat modules and covers and hulls of modules are investigated and the concept of a relative (quasi-)projective cover is used to characterize those rings which are right perfect modulo their torsion ideal. Torsion free covers are also studied and results are given which generalize well known results on torsion free covers for modules (with usual torsion) over an integral domain. Finally, (semi-)primitive, (semi-)simple and (semi-)prime rings are investigated in a torsion theoretical setting and rings which are right primitive relative to a torsion theory are linked to a form of density which is reminiscent of Jacobson density for right primitive rings.

Download or read book Brownian Motion and Index Formulas for the de Rham Complex written by Kazuaki Taira and published by Wiley-VCH. This book was released on 1998 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an easy-to-read reference providing a link between partial differential equations (pde), stochastic analysis, and index theory. Most mathematicians working in pde are only vaguely familiar with the powerful ideas of stochastic analysis. On the other hand, the additional intuition which Taira?s book conveys might provide better insight and be helpful for their work. In addition, the book provides a nice compendium for a large variety of facts from differential geometry, functional analysis, pseudodifferential operators, and Markov processes - for quickly looking up a theorem.

Download or read book Advances in Multivariate Approximation written by Werner Haußmann and published by Wiley-VCH. This book was released on 1999-11-12 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume deals with main results of the 3rd International Conference on Multivariate Approximation, organized by the University of Dortmund. Special emphasis is put on the following topics: Interpolation and approximation on spheres and balls, approximation by solutions of differential equations, construction of node systems, scattered data techniques.

Download or read book Physics Letters written by and published by . This book was released on 2001 with total page 812 pages. Available in PDF, EPUB and Kindle. Book excerpt: General physics, atomic physics, molecular physics, and solid state physics.