Summary
We present in this paper two results concerning the convergence of the teo-grid algebraic algorithm for arbitrary symmetric systems of linear equations which are also positive definite.Ue obtain these results using a special construction of the interpolation operator based on Gaussian elimination on a sub-matrix of the original system matrix.At the end of the paper we make also some remarks concerning the symmetric indefinite systems.
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References
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© 1993 Friedr. Vieweg & Sohn Verlagsgesellschaft mbH, Braunschweig/Wiesbaden
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Popa, C. (1993). The Construction of the Interpolation Operator with I L U Decomposition for Algebraic Positive Definite Systems. In: Hackbusch, W., Wittum, G. (eds) Incomplete Decomposition (ILU) — Algorithms, Theory, and Applications. Notes on Numerical Fluid Mechanics (NNFM), vol 29. Vieweg+Teubner Verlag, Wiesbaden. https://doi.org/10.1007/978-3-322-85732-3_13
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DOI: https://doi.org/10.1007/978-3-322-85732-3_13
Publisher Name: Vieweg+Teubner Verlag, Wiesbaden
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