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An operator approach for an oblique derivative boundary-transmission problem

✍ Scribed by L. P. Castro; A. Moura Santos

Publisher: John Wiley and Sons
Year: 2004
Tongue: English
Weight: 228 KB
Volume: 27
Category: Article
ISSN: 0170-4214
DOI: 10.1002/mma.521

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✦ Synopsis

Abstract

We consider a boundary‐transmission problem for the Helmholtz equation, in a Bessel potential space setting, which arises within the context of wave diffraction theory. The boundary under consideration consists of a strip, and certain conditions are assumed on it in the form of oblique derivatives. Operator theoretical methods are used to deal with the problem and, as a consequence, several convolution type operators are constructed and associated to the problem. At the end, the well‐posedness of the problem is shown for a range of non‐critical regularity orders of the Bessel potential spaces, which include the finite energy norm space. In addition, an operator normalization method is applied to the critical orders case. Copyright © 2004 John Wiley & Sons, Ltd.

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