WIT Press


A Kansa-RBF Method For Poisson Problems In Annular Domains

Price

Free (open access)

Paper DOI

10.2495/BE370071

Volume

57

Pages

7

Page Range

77 - 83

Published

2014

Size

210 kb

Author(s)

A. Karageorghis, C. S. Chen

Abstract

We employ a Kansa-radial basis function (RBF) method for Poisson boundary value problems in annular domains. This discretization leads, for any choice of RBF, to linear system matrices possessing block circulant structures. The linear systems can be solved efficiently using Matrix Decomposition Algorithms (MDAs). The feasibility of the proposed technique is illustrated by a numerical example.

Keywords

radial basis functions, Poisson equation, fast Fourier transforms, Kansa method