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 Convolution type operators with symmetry in Bessel potential spaces
Please use this identifier to cite or link to this item http://hdl.handle.net/10773/17128

title: Convolution type operators with symmetry in Bessel potential spaces
authors: Castro, Luís Pinheiro de
Speck, Frank-Olme
keywords: Convolution type operator
Symmetry
Factorization
Boundary value problem
Quadrant
Diffraction
Explicit solution
Sobolev space
issue date: 25-Feb-2017
publisher: Springer International Publishing
abstract: Convolution type operators with symmetry appear naturally in boundary value problems for elliptic PDEs in symmetric or symmetrizable domains. They are defined as truncations of translation invariant operators in a scale of Sobolev-like spaces that are convolutionally similar to subspaces of even or odd functionals. The present class, as a basic example, is closely related to the Helmholtz equation in a quadrant, where a possible solution is "symmetrically" extended to a half-plane. Explicit factorization methods allow the representation of resolvent operators in closed analytic form for a large class of boundary conditions including the two-impedance and the oblique derivative problems. Moreover they allow fine results on the regularity and asymptotic behavior of the solutions.
URI: http://hdl.handle.net/10773/17128
ISBN: 978-3-319-47077-1
publisher version/DOI: http://link.springer.com/chapter/10.1007/978-3-319-47079-5_2
appears in collectionsCIDMA - Capítulo de livro

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