Preconditioners for spectral element methods for elliptic and parabolic problems |
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Authors: | P Dutt P Biswas G Naga Raju |
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Institution: | Indian Institute of Technology, Kanpur, UP, India |
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Abstract: | In this paper we propose preconditioners for spectral element methods for elliptic and parabolic problems. These preconditioners are constructed using separation of variables and are easy to invert. Moreover they are spectrally equivalent to the quadratic forms which they are used to approximate. |
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Keywords: | 65F15 65M05 65M55 65M70 |
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