Abstract
Modified proofs of spectral equivalence in connection with methods of two-level grid type are presented. The upper bounds on the condition numbers are independent on the mesh parameter and on the smoothness of the solution. Some particular two-level methods are extended by recursion to multigrid methods.
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References
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© 1982 Springer-Verlag
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Axelsson, O. (1982). On multigrid methods of the two-level type. In: Hackbusch, W., Trottenberg, U. (eds) Multigrid Methods. Lecture Notes in Mathematics, vol 960. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0069933
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DOI: https://doi.org/10.1007/BFb0069933
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