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Erschienen in: Journal of Scientific Computing 2/2012

01.11.2012

Domain Decomposition Spectral Method for Mixed Inhomogeneous Boundary Value Problems of High Order Differential Equations on Unbounded Domains

verfasst von: Chao Zhang, Ben-yu Guo

Erschienen in: Journal of Scientific Computing | Ausgabe 2/2012

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Abstract

In this paper, we develop domain decomposition spectral method for mixed inhomogeneous boundary value problems of high order differential equations defined on unbounded domains. We introduce an orthogonal family of new generalized Laguerre functions, with the weight function x α , α being any real number. The corresponding quasi-orthogonal approximation and Gauss-Radau type interpolation are investigated, which play important roles in the related spectral and collocation methods. As examples of applications, we propose the domain decomposition spectral methods for two fourth order problems, and the spectral method with essential imposition of boundary conditions. The spectral accuracy is proved. Numerical results demonstrate the effectiveness of suggested algorithms.

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Metadaten
Titel
Domain Decomposition Spectral Method for Mixed Inhomogeneous Boundary Value Problems of High Order Differential Equations on Unbounded Domains
verfasst von
Chao Zhang
Ben-yu Guo
Publikationsdatum
01.11.2012
Verlag
Springer US
Erschienen in
Journal of Scientific Computing / Ausgabe 2/2012
Print ISSN: 0885-7474
Elektronische ISSN: 1573-7691
DOI
https://doi.org/10.1007/s10915-012-9581-z

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