Suchergebnisse - "\(V\)-cycle multigrid algorithm"
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V-cycle Multigrid Algorithms for Discontinuous Galerkin Methods on Non-nested Polytopic Meshes
ISSN: 0885-7474, 1573-7691Veröffentlicht: New York Springer US 01.01.2019Veröffentlicht in Journal of scientific computing (01.01.2019)“… In this paper we analyze the convergence properties of V -cycle multigrid algorithms for the numerical solution of the linear system of equations stemming from discontinuous Galerkin discretization …”
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Uniform Convergence of V-cycle Multigrid Algorithms for Two-Dimensional Fractional Feynman–Kac Equation
ISSN: 0885-7474, 1573-7691, 1573-7691Veröffentlicht: New York Springer US 01.02.2018Veröffentlicht in Journal of scientific computing (01.02.2018)“… When solving large linear systems stemming from the approximation of elliptic partial differential equations (PDEs), it is known that the V-cycle multigrid …”
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A simplified new multigrid algorithm of lattice Boltzmann method for steady states
ISSN: 0898-1221, 1873-7668Veröffentlicht: Elsevier Ltd 01.04.2023Veröffentlicht in Computers & mathematics with applications (1987) (01.04.2023)“… Based on the popular V-cycle multigrid algorithm, a simplified multigrid algorithm is presented and validated through the simulations of the classic lid-driven cavity flow for steady states …”
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V-cycle multigrid algorithms for discontinuous Galerkin methods on non-nested polytopic meshes
ISSN: 2331-8422Veröffentlicht: Ithaca Cornell University Library, arXiv.org 29.09.2017Veröffentlicht in arXiv.org (29.09.2017)“… In this paper we analyse the convergence properties of V-cycle multigrid algorithms for the numerical solution of the linear system of equations arising from discontinuous Galerkin discretization …”
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Uniform convergence of V-cycle multigrid algorithms for two-dimensional fractional Feynman-Kac equation
ISSN: 2331-8422Veröffentlicht: Ithaca Cornell University Library, arXiv.org 05.06.2017Veröffentlicht in arXiv.org (05.06.2017)“… In this paper we derive new uniform convergence estimates for the V-cycle MGM applied to symmetric positive definite Toeplitz block tridiagonal matrices, by …”
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Analysis of V-Cycle Multigrid Algorithms for Forms Defined by Numerical Quadrature
ISSN: 1064-8275, 1095-7197Veröffentlicht: Philadelphia Society for Industrial and Applied Mathematics 01.05.1994Veröffentlicht in SIAM journal on scientific computing (01.05.1994)“… The authors describe and analyze certain V-cycle multigrid algorithms with forms defined by numerical quadrature applied to the approximation of symmetric second-order elliptic boundary value problems …”
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A convergent multigrid cycle for the hybridized mixed method
ISSN: 1070-5325, 1099-1506Veröffentlicht: Chichester, UK John Wiley & Sons, Ltd 01.09.2009Veröffentlicht in Numerical linear algebra with applications (01.09.2009)“… We consider the application of a variable V‐cycle multigrid algorithm for the hybridized mixed method for second …”
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Multilevel methods for Wilson element approximation of elasticity problem
ISSN: 0045-7825, 1879-2138Veröffentlicht: Amsterdam Elsevier B.V 04.05.1999Veröffentlicht in Computer methods in applied mechanics and engineering (04.05.1999)“… In this paper, a multilevel preconditioner and a V-cycle multigrid algorithm are presented for Wilson nonconforming element approximation of elasticity problem …”
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Multigrid algorithm for the cell-centered finite difference method II: discontinuous coefficient case
ISSN: 0749-159X, 1098-2426Veröffentlicht: Hoboken Wiley Subscription Services, Inc., A Wiley Company 01.09.2004Veröffentlicht in Numerical methods for partial differential equations (01.09.2004)“… We consider a multigrid algorithm for the cell centered finite difference scheme with a prolongation operator depending on the diffusion coefficient. This …”
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V -Cycle Multigrid for Cell-Centered Finite Differences
ISSN: 1064-8275, 1095-7197Veröffentlicht: Philadelphia Society for Industrial and Applied Mathematics 1999Veröffentlicht in SIAM journal on scientific computing (1999)“… We introduce and analyze a V-cycle multigrid algorithm for cell-centered finite difference methods applied to second-order elliptic boundary value problems …”
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Convergence estimates for multigrid algorithms
ISSN: 0898-1221, 1873-7668Veröffentlicht: Elsevier Ltd 01.11.1997Veröffentlicht in Computers & mathematics with applications (1987) (01.11.1997)“… Under these weaker assumptions, we show that the convergence factor of V-cycle multigrid algorithm is δ = 1 − 1 (C(j − 1 …”
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Analysis of Multigrid Algorithms on Massively Parallel Computers: Architectural Implications
ISSN: 0743-7315, 1096-0848Veröffentlicht: San Diego, CA Elsevier Inc 25.02.1996Veröffentlicht in Journal of parallel and distributed computing (25.02.1996)“… We consider the domain parallel version of the standard V-cycle multigrid algorithm on model problems, discretized using finite difference techniques in two and three dimensions on block-structured …”
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Semi-Coarsening Multigrid And Algebraic Multigrid for z-Level Grids
ISBN: 9781267102850, 1267102853Veröffentlicht: ProQuest Dissertations & Theses 01.01.2011“… V-cycle multigrid algorithm is used to solve the problem. The discretization of three-dimensional, nonlinear, nonhydrostatic Navier-Stokes equation in SUNTANS …”
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Iterative solvers for hybridized finite element methods
ISBN: 1109685521, 9781109685527Veröffentlicht: ProQuest Dissertations & Theses 01.01.2009“… We consider the application of a variable V-cycle multigrid algorithm for the hybridized mixed method for second order elliptic boundary value problems …”
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Preconditioning of discontinuous Galerkin methods for second order elliptic problems
ISBN: 0549415343, 9780549415343Veröffentlicht: ProQuest Dissertations & Theses 01.01.2007“… In the case when continuous coarse spaces are used, we prove that a variable V-cycle multigrid algorithm is a uniform preconditioner …”
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Smoothers, mesh dependent norms, interpolation and multigrid
ISSN: 0168-9274, 1873-5460Veröffentlicht: Amsterdam Elsevier B.V 01.10.2002Veröffentlicht in Applied numerical mathematics (01.10.2002)“… These estimates are useful in the additive approach to the convergence of V-cycle multigrid algorithms and lead to results on the asymptotic behavior of the contraction numbers with respect …”
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Multigrid algorithms for a vertex-centered covolume method for elliptic problems
ISSN: 0029-599X, 0945-3245Veröffentlicht: Heidelberg Springer 01.01.2002Veröffentlicht in Numerische Mathematik (01.01.2002)Volltext
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V-cycle multigrid methods for Wilson nonconforming element
ISSN: 1006-9283, 1862-2763Veröffentlicht: Institute of Computational Mathematics, Chinese Academy of Sciences, Beijing 100080, China 01.07.2000Veröffentlicht in Science in China. Series A, Mathematics, physics, astronomy (01.07.2000)“… O4; Here two types of optimal V-cycle multigrid algorithms are presented for Wilson nonconforming finite element …”
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Agglomeration-based geometric multigrid schemes for the Virtual Element Method
ISSN: 2331-8422Veröffentlicht: Ithaca Cornell University Library, arXiv.org 27.02.2022Veröffentlicht in arXiv.org (27.02.2022)“… We prove the uniform convergence of the two-level method with respect to the mesh size and the uniform convergence of the W-cycle and the V-cycle multigrid algorithms with respect to the mesh size …”
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Simulation of viscous fluid flows using a control volume finite element-multigrid method
ISBN: 9780612061552, 0612061558Veröffentlicht: ProQuest Dissertations & Theses 01.01.1995“… The formulation and implementation of an equal-order colocated control volume finite element-multigrid (CVFE-MG) method for steady, two-dimensional, viscous …”
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