Inverse Obstacle Scattering with Non-Over-Determined Scattering Data / Synthesis Lectures on Mathematics & Statistics (PDF)

Name: Inverse Obstacle Scattering with Non-Over-Determined Scattering Data / Synthesis Lectures on Mathematics & Statistics
Brand: Springer International Publishing
SKU: 144097638
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Autor: Alexander G. Ramm

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Inverse Obstacle Scattering with Non-Over-Determined Scattering Data / Synthesis Lectures on Mathematics & Statistics, Alexander G. Ramm

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> 0 is the modulus of the wave vector. The scattering data is called non-over-determined if its dimensionality is the same as the one of the unknown object. By the dimensionality one understands the minimal number of variables of a function describing the data or an object. In an inverse obstacle scattering problem this number is 2, and an example of non-over-determined data is ¿¿¿¿(¿¿¿¿) := ¿¿¿¿(¿¿¿¿;¿¿¿¿0;¿¿¿¿0). By sub-index 0 a fixed value of a variable is denoted.

It is proved in this book that the data ¿¿¿¿(¿¿¿¿), known for all ¿¿¿¿ in an open subset of ¿¿¿¿², determines uniquely the surface ¿¿¿¿ and the boundary condition on ¿¿¿¿. This condition can be the Dirichlet, or the Neumann, or the impedance type.

The above uniqueness theorem is of principal importance because the non-over-determined data are the minimal data determining uniquely the unknown ¿¿¿¿. There were no such results in the literature, therefore the need for this book arose. This book contains a self-contained proof of the existence and uniqueness of the scattering solution for rough surfaces.

Autoren-Porträt von Alexander G. Ramm

Alexander G. Ramm, Ph.D., was born in Russia, immigrated to the U.S. in 1979, and is a U.S. citizen. He is Professor of Mathematics with broad interests in analysis, scattering theory, inverse problems, theoretical physics, engineering, signal estimation, tomography, theoretical numerical analysis, and applied mathematics. He is an author of 690 research papers, 16 monographs, and an editor of 3 books. He has lectured in many universities throughout the world, presented approximately 150 invited and plenary talks at various conferences, and has supervised 11 Ph.D. students. He was Fulbright Research Professor in Israel and in Ukraine, distinguished visiting professor in Mexico and Egypt, Mercator professor, invited plenary speaker at the 7th PACOM, won the Khwarizmi international award, and received other honors. Recently he solved inverse scattering problems with non-over-determined data and the many-body wave-scattering problem when the scatterers are small particles of an arbitrary shape; Dr. Ramm used this theory to give a recipe for creating materials with a desired refraction coefficient, gave a solution to the refined Pompeiu problem and proved the refined Schiffers conjecture.

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Autor: Alexander G. Ramm
2022, 1. Auflage, 53 Seiten, Englisch
Verlag: Springer International Publishing
ISBN-10: 3031024184
ISBN-13: 9783031024184
Erscheinungsdatum: 01.06.2022

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