Scattering characteristics of a diffraction problem on a wedge and on a screen
Zapiski Nauchnykh Seminarov POMI, Investigations on linear operators and function theory. Part X, Tome 107 (1982), pp. 193-197
Cet article a éte moissonné depuis la source Math-Net.Ru
Explicit formulae for wave operators are given and the completeness of the operators is established for a class of boundary conditions. It ia shown that modified (taking the reflection into account) scattering matrix is a unitary operator with a pure point spectrum. Ordinary $S$-matrix is a unitary operator for a screen. Under the Dirichlet (Neumann) boundary condition $S$-matrix is diagonalized explicitly. The simple absolutely continuous spectrum of $S$-matrix contains a lower (upper) semicircumference.
@article{ZNSL_1982_107_a13,
author = {E. M. Il'in},
title = {Scattering characteristics of a~diffraction problem on a~wedge and on a~screen},
journal = {Zapiski Nauchnykh Seminarov POMI},
pages = {193--197},
year = {1982},
volume = {107},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/ZNSL_1982_107_a13/}
}
E. M. Il'in. Scattering characteristics of a diffraction problem on a wedge and on a screen. Zapiski Nauchnykh Seminarov POMI, Investigations on linear operators and function theory. Part X, Tome 107 (1982), pp. 193-197. http://geodesic.mathdoc.fr/item/ZNSL_1982_107_a13/