Nearly optimal convergence result for multigrid with aggressive coarsening and polynomial smoothing

Petr Vaněk; Marian Brezina

Displaying similar documents to “Nearly optimal convergence result for multigrid with aggressive coarsening and polynomial smoothing”

On the approximate roots of polynomials

Janusz Gwoździewicz, Arkadiusz Płoski (1995)

Annales Polonici Mathematici

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We give a simplified approach to the Abhyankar-Moh theory of approximate roots. Our considerations are based on properties of the intersection multiplicity of local curves.

On $f$ -thin sets

Pavel Kostyrko (1982)

Časopis pro pěstování matematiky

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Some local asymptotic laws for the Cauchy process on the line.

Okoroafor, A.Chukwuemeka (2007)

Journal of Applied Mathematics and Stochastic Analysis

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Characterizing Frobenius semigroups by filtration.

Johnson, Inga, Powers, Sean, Starr, Colin, Trevelyan, Charles, Webster, Craig (2009)

Journal of Integer Sequences [electronic only]

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On the modes of polynomials derived from nondecreasing sequences.

Dou, Donna Q.J., Yang, Arthur L.B. (2011)

The Electronic Journal of Combinatorics [electronic only]

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A curious identity involving binomial coefficients.

Sun, Zhiwei (2002)

Integers

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A common generalization of some identities.

Zhang, Zhizheng, Wang, Jun (2005)

Integers

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On a linear Diophantine problem of Frobenius.

Tripathi, Amitabha (2006)

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An Ingham type proof for a two-grid observability theorem

Michel Mehrenberger, Paola Loreti (2008)

ESAIM: Control, Optimisation and Calculus of Variations

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Here, we prove the uniform observability of a two-grid method for the semi-discretization of the $1 D$ -wave equation for a time $T > 2 \sqrt{2}$ ; this time, if the observation is made in $(- T / 2, T / 2)$ , is optimal and this result improves an earlier work of Negreanu and Zuazua [C. R. Acad. Sci. Paris Sér. I 338 (2004) 413–418]. Our proof follows an Ingham type approach.