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Spectral multigrid methods for elliptic equations 2A detailed description of spectral multigrid methods is provided. This includes the interpolation and coarse-grid operators for both periodic and Dirichlet problems. The spectral methods for periodic problems use Fourier series and those for Dirichlet problems are based upon Chebyshev polynomials. An improved preconditioning for Dirichlet problems is given. Numerical examples and practical advice are included.
Document ID
19830020666
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Zang, T. A. (Coll. of William and Mary Williamsburg, Va., United States)
Wong, Y. S. (NASA Langley Research Center Hampton, VA, United States)
Hussaini, M. Y. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 4, 2013
Publication Date
May 1, 1983
Subject Category
Numerical Analysis
Report/Patent Number
ICASE-83-12
NASA-CR-172131
NAS 1.26:172131
Accession Number
83N28937
Funding Number(s)
CONTRACT_GRANT: NAS1-17130
CONTRACT_GRANT: NAS1-17070
CONTRACT_GRANT: NAG1-109
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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