Výsledky vyhledávání - V-cycle multigrid algorithm

Uniform Convergence of V-cycle Multigrid Algorithms for Two-Dimensional Fractional Feynman–Kac Equation Autor Chen, Minghua, Deng, Weihua, Serra-Capizzano, Stefano

“…), it is known that the V-cycle multigrid method (MGM) can significantly lower the computational cost…”
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V-cycle Multigrid Algorithms for Discontinuous Galerkin Methods on Non-nested Polytopic Meshes Autor Antonietti, P. F., Pennesi, G.

“…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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Multigrid Algorithm for Immersed Finite Element Discretizations of Elliptic Interface Problems Autor Chu, Hanyu, Song, Yongzhong, Ji, Haifeng, Cai, Ying

“… We prove that the convergence of W-cycle multigrid algorithm and the condition number of the variable V-cycle as preconditioner are optimal by verifying the regularity-approximation assumption…”
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V-cycle multigrid algorithms for discontinuous Galerkin methods on non-nested polytopic meshes Autor Antonietti, P F, Pennesi, G

“…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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Parallel multigrid method for solving inverse problems Autor Al-Mahdawi, H.K., Sidikova, A. I, Alkattan, Hussein, Abotaleb, Mostafa, Kadi, Ammar, El-kenawy, El-Sayed M

“… A new parallel algorithm for the multigrid process has been developed. The proposed algorithm is based on a V-cycle mixed with the two-grid method…”
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Uniform convergence of V-cycle multigrid algorithms for two-dimensional fractional Feynman-Kac equation Autor Chen, Minghua, Deng, Weihua, Serra-Capizzano, Stefano

“…In this paper we derive new uniform convergence estimates for the V-cycle MGM applied to symmetric positive definite Toeplitz block tridiagonal matrices, by also discussing few connections with previous results…”
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Analysis of V-Cycle Multigrid Algorithms for Forms Defined by Numerical Quadrature Autor Bramble, J. H., Goldstein, C. I., Pasciak, J. E.

“…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 simplified new multigrid algorithm of lattice Boltzmann method for steady states Autor An, Bo, Bergadà, J.M., Sang, W.M.

“… 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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Sixth order compact scheme combined with multigrid method and extrapolation technique for 2D poisson equation Autor Wang, Yin, Zhang, Jun

“…, Richardson extrapolation technique, and an operator based interpolation scheme. We use multigrid V-Cycle procedure to build our multiscale multigrid algorithm, which is similar to the full multigrid method (FMG…”
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Uniform convergence of multigrid V-cycle on adaptively refined finite element meshes for second order elliptic problems Autor Wu, Haijun, Chen, Zhiming

“…In this paper we prove the uniform convergence of the standard multigrid V-cycle algorithm with the Gauss-Seidel relaxation performed only on the new nodes and their 'immediate' neighbors for discrete…”
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A Geometric Multigrid Method for 3D Magnetotelluric Forward Modeling Using Finite-Element Method Autor Huang, Xianyang, Yin, Changchun, Wang, Luyuan, Liu, Yunhe, Zhang, Bo, Ren, Xiuyan, Su, Yang, Li, Jun, Chen, Hui

“… Then, we develop a V-cycle geometric multigrid algorithm to solve the linear equations system. To demonstrate the efficiency and effectiveness of our geometric…”
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Comparison of Second- and Fourth-Order Discretizations for Multigrid Poisson Solvers Autor Gupta, Murli M., Kouatchou, Jules, Zhang, Jun

“…We combine a compact high-order difference approximation with multigrid V-cycle algorithm to solve the two-dimensional Poisson equation with Dirichlet boundary conditions…”
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A convergent multigrid cycle for the hybridized mixed method Autor Gopalakrishnan, Jayadeep, Tan, Shuguang

“…We consider the application of a variable V‐cycle multigrid algorithm for the hybridized mixed method for second…”
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Designing Resilient Parallel Multigrid Methods on Unstructured Adaptive Meshes Autor Fung, Frederick

“…In this thesis, we develop a class of fault-tolerant geometric multigrid method to address the loss of numerical data on faulty processors…”
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Uniform convergence estimates for multigrid $V$-cycle algorithms with less than full elliptic regularity Autor Bramble, James H., Pasciak, Joseph E.

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Multigrid algorithm for the cell-centered finite difference method II: discontinuous coefficient case Autor Kwak, Do Y., Lee, Jun S.

“…We consider a multigrid algorithm for the cell centered finite difference scheme with a prolongation operator depending on the diffusion coefficient…”
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An explicit Chebyshev pseudospectral multigrid method for incompressible Navier–Stokes equations Autor Zhang, W., Zhang, C.H., Xi, G.

“…) scheme and implement it through V-cycle multigrid and full multigrid (FMG) strategies. Four iterative methods are designed including the single grid method…”
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V -Cycle Multigrid for Cell-Centered Finite Differences Autor Kwak, Do Y.

“…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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Optimized partial semicoarsening multigrid algorithm for heat diffusion problems and anisotropic grids Autor Oliveira, F., Pinto, M.A.V., Marchi, C.H., Araki, L.K.

“… The systems of equations are solved with the lexicographic and red–black Gauss–Seidel methods associated to the geometric multigrid with correction scheme and V-cycle…”
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Analysis of a multigrid preconditioner for Crouzeix-Raviart discretization of elliptic partial differential equation with jumpcoefficients Autor Zhu, Yunrong

“… We showed that the convergence rates of the (multiplicative) two-grid and multigrid V-cycle algorithms will deteriorate rapidly because of large jumps in coefficient…”
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