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A new approach to analyticity of Dirichlet-Neumann operators

Published online by Cambridge University Press:  12 July 2007

David P. Nicholls
Affiliation:
School of Mathematics, University of Minnesota, Minneapolis, MN 55455, USA
Fernando Reitich
Affiliation:
School of Mathematics, University of Minnesota, Minneapolis, MN 55455, USA

Abstract

This paper outlines the theoretical background of a new approach towards an accurate and well-conditioned perturbative calculation of Dirichlet-Neumann operators (DNOs) on domains that are perturbations of simple geometries. Previous work on the analyticity of DNOs has produced formulae that, as we have found, are very ill-conditioned. We show how a simple change of variables can lead to recursions that satisfy analyticity estimates without relying on subtle cancellation properties at the heart of previous formulae.

Type
Research Article
Copyright
Copyright © Royal Society of Edinburgh 2001

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