A fast numerical method for a natural bo
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Song-Hua Li; Ming-Bao Sun
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Article
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2009
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Elsevier Science
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English
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A Neumann boundary value problem of the Helmholtz equation in the exterior circular domain is reduced into an equivalent natural boundary integral equation. Using our trigonometric wavelets and the Galerkin method, the obtained stiffness matrix is symmetrical and circulant, which lead us to a fast n