Inverse Nodal Problems: Finding the Potential from Nodal Lines

Inverse Nodal Problems: Finding the Potential from Nodal Lines

Author: Ole H. Hald

Publisher: American Mathematical Soc.

Published: 1996

Total Pages: 162

ISBN-13: 0821804863

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In this paper we consider an eigenvalue problem which arises in the study of rectangular membranes. The mathematical model is an elliptic equation, in potential form, with Dirichlet boundary conditions. We show that the potential is uniquely determined, up to an additive constant, by a subset of the nodal lines of the eigenfunctions. A formula is shown which, when the additive constant is given, yields an approximation to the potential at a dense set of points. We present an estimate for the error made by the formula. A substantial part of this work is the derivation of the asymptotic forms for a rich set of eigenvalues and eigenfunctions for a large set of rectangles.


Inverse Problems in Wave Propagation

Inverse Problems in Wave Propagation

Author: Guy Chavent

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 502

ISBN-13: 1461218780

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Inverse problems in wave propagation occur in geophysics, ocean acoustics, civil and environmental engineering, ultrasonic non-destructive testing, biomedical ultrasonics, radar, astrophysics, as well as other areas of science and technology. The papers in this volume cover these scientific and technical topics, together with fundamental mathematical investigations of the relation between waves and scatterers.


Inverse Problems in Vibration

Inverse Problems in Vibration

Author: G.M.L. Gladwell

Publisher: Springer Science & Business Media

Published: 2004-08-10

Total Pages: 484

ISBN-13: 9781402026706

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In the first, 1986, edition of this book, inverse problems in vibration were interpreted strictly: problems concerning the reconstruction of a unique, undamped vibrating system, of a specified type, from specified vibratory behaviour, particularly specified natural frequencies and/or natural mode shapes. In this new edition the scope of the book has been widened to include topics such as isospectral systems- families of systems which all exhibit some specified behaviour; applications of the concept of Toda flow; new, non-classical approaches to inverse Sturm-Liouville problems; qualitative properties of the modes of some finite element models; damage identification. With its emphasis on analysis, on qualitative results, rather than on computation, the book will appeal to researchers in vibration theory, matrix analysis, differential and integral equations, matrix analysis, non-destructive testing, modal analysis, vibration isolation, etc. "This book is a necessary addition to the library of engineers and mathematicians working in vibration theory." Mathematical Reviews


Surveys on Solution Methods for Inverse Problems

Surveys on Solution Methods for Inverse Problems

Author: David Colton

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 279

ISBN-13: 3709162963

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Inverse problems are concerned with determining causes for observed or desired effects. Problems of this type appear in many application fields both in science and in engineering. The mathematical modelling of inverse problems usually leads to ill-posed problems, i.e., problems where solutions need not exist, need not be unique or may depend discontinuously on the data. For this reason, numerical methods for solving inverse problems are especially difficult, special methods have to be developed which are known under the term "regularization methods". This volume contains twelve survey papers about solution methods for inverse and ill-posed problems and about their application to specific types of inverse problems, e.g., in scattering theory, in tomography and medical applications, in geophysics and in image processing. The papers have been written by leading experts in the field and provide an up-to-date account of solution methods for inverse problems.


Inverse Eigenvalue Problems

Inverse Eigenvalue Problems

Author: Moody Chu

Publisher: OUP Oxford

Published: 2005-06-16

Total Pages: 406

ISBN-13: 0191524220

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Inverse eigenvalue problems arise in a remarkable variety of applications and associated with any inverse eigenvalue problem are two fundamental questions—the theoretical issue of solvability and the practical issue of computability. Both questions are difficult and challenging. In this text, the authors discuss the fundamental questions, some known results, many applications, mathematical properties, a variety of numerical techniques, as well as several open problems. This is the first book in the authoritative Numerical Mathematics and Scientific Computation series to cover numerical linear algebra, a broad area of numerical analysis. Authored by two world-renowned researchers, the book is aimed at graduates and researchers in applied mathematics, engineering and computer science and makes an ideal graduate text.


Eigenvalues of Inhomogeneous Structures

Eigenvalues of Inhomogeneous Structures

Author: Isaac Elishakoff

Publisher: CRC Press

Published: 2004-10-28

Total Pages: 746

ISBN-13: 142003801X

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The engineering community generally accepts that there exists only a small set of closed-form solutions for simple cases of bars, beams, columns, and plates. Despite the advances in powerful computing and advanced numerical techniques, closed-form solutions remain important for engineering; these include uses for preliminary design, for evaluation


Recent Development in Theories & Numerics

Recent Development in Theories & Numerics

Author: Yiu-Chung Hon

Publisher: World Scientific

Published: 2003

Total Pages: 473

ISBN-13: 9812383662

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Annotation. Proceedings from the First International Conference on Inverse Problems, Recent Theoretical Development and Numerical Approaches, held at the City University of Hong Kong from January 9-12, 2002.


The Radon Transform and Medical Imaging

The Radon Transform and Medical Imaging

Author: Peter Kuchment

Publisher: SIAM

Published: 2014-01-01

Total Pages: 238

ISBN-13: 1611973295

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This book surveys the main mathematical ideas and techniques behind some well-established imaging modalities such as X-ray CT and emission tomography, as well as a variety of newly developing coupled-physics or hybrid techniques, including thermoacoustic tomography. The Radon Transform and Medical Imaging emphasizes mathematical techniques and ideas arising across the spectrum of medical imaging modalities and explains important concepts concerning inversion, stability, incomplete data effects, the role of interior information, and other issues critical to all medical imaging methods. For nonexperts, the author provides appendices that cover background information on notation, Fourier analysis, geometric rays, and linear operators. The vast bibliography, with over 825 entries, directs readers to a wide array of additional information sources on medical imaging for further study.