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The inverse obstacle scattering problem consists of finding the unknown surface of a body (obstacle) from the scattering ??(??;??;??), where ??(??;??;??) is the scattering amplitude, $??;?? ?? ??² is the direction of the scattered, incident wave, respectively, ??² is the unit sphere in the R³ and k > 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.
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Inverse Obstacle Scattering with Non-Over-Determined Scattering Data (Synthesis Lectures on Mathematics and Statistics)
Editore:
Morgan & Claypool Publishers, 2019
ISBN 10: 1681735881
ISBN 13: 9781681735887
Nuovo
Soft cover
Da: Leopolis, Kraków, Polonia
Valutazione del venditore 5 su 5 stelle
Soft cover. Condizione: New. 8vo (23.5 cm), XV, 53 pp. Laminated wrappers. Synopsis: The inverse obstacle scattering problem consists of finding the unknown surface of a body (obstacle) from the scattering (;;), where (;;) is the scattering amplitude, ; ² is the direction of the scattered, incident wave, respectively, ² is the unit sphere in the ?³ and k > 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 () := (;?;?). 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. Codice articolo 008458
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