Some estimates of the rate of convergenc
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V.V. Shaidurov
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Article
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1996
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Elsevier Science
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English
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The paper deals with a cascadic conjugate-gradient method (shortly called the CCCalgorithm) which was proposed by P. Deufihard and can be considered as a simpler version of a multigrid (multilevel) method. We define it recurrently for discrete self-adjoint positive-definite problems on a sequence of