Multigrid Method
A Wavelet Multigrid Method Using Symmetric Biorthogonal Wavelets
... two-level multigrid method, under the assumption that the matrix on the fine grid is ...and multigrid methods, which similarities motivate investigation into wavelet- based multigrid ...of ...
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High Order Compact Difference Scheme and Multigrid Method for 2D Elliptic Problems with Variable Coefficients and Interior/Boundary Layers on Nonuniform Grids
... method is employed to transfer nonuniform grids in the physical domain, which concentrates clustered grid points inside the interior/boundary layers, to uniform grids in the computational domain. A high order ...
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Multigrid method based on transformation free high order scheme for solving 2D Helmholtz equation on nonuniform grids
... spectral-element method, but the limitations of these methods are of high computa- tional cost ...attractive. Multigrid methods together with the HOC schemes on uniform mesh sizes are developed in ...a ...
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Multigrid Method for the Numerical Solution of the Modified Equal Width Wave Equation
... the multigrid method up to t = 20 ...present method with those obtained by other methods [13] [19] [21] ...present method are smaller than the other ...
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Multigrid Method for Linear Complementarity Problem and Its Implementation on GPU
... (PSOR) method introduced in ...geometric multigrid method [3] with the PSOR method used as a smoother can be applied [8], ...this method which is applicable even to problems with sparse ...
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The Numerical Solution of the MRLW Equation Using the Multigrid Method
... + + α − = , by using the multigrid method and finite difference method. The solitary wave motion, interaction of two and three solitary waves, and development of the Maxwellian initial condition into ...
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An aggregation-based algebraic multigrid method
... algebraic multigrid method is presented to solve large systems of linear ...aggregation-based multigrid methods, the scalability is enhanced by using a so-called K-cycle multigrid scheme, ...
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A multigrid method for saddle point problems arising from mortar finite element discretizations
... the discrete spaces and the saddle point formulation as well as the a priori estimates. The two basic tools, approximation and smoothing properties, for the convergence analysis of a multigrid method are ...
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An algebraic multigrid method for high order time discretizations of the div grad and the curl curl equations
... For a model problem on a regular grid, the asymptotic convergence factor of a scalar multigrid algorithm applied to (zK + M)x = b for z ∈ C can be calculated by a so-called local Fourier mode analysis. We refer to ...
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Multigrid accelerated simulations for Twisted Mass fermions
... DD-αAMG method optimized for TM fermions ...the multigrid method is limiting significantly the parallelization of the calculation, the speed-up achieved makes feasible to sample enough MD ...
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Vol 4, No 12 (2013)
... Multigrid method is applied to solve the modified Reynolds equation to study various physical parameters such as pre - ssure distribution, couple stress parameter, load carrying capacity, Hartmann number ...
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Cell-Vertex Based Multigrid Solution of the Time-Domain Maxwell's Equations
... explicit multigrid time stepping method used here, involves cycling the solution in a hierarchy of fine and coarse grids, was developed by Ni [9] to accelerate the convergence of his own cell- vertex based ...
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pp x y zrepresents the pressure,
... the multigrid performance for Stokes equations has been a topic of study during many years and a benchmark for studies of different techniques proposed in this field, as the local Fourier analysis for example in ...
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C++ version of the algorithm.
... PDEs. Multigrid solvers have been shown to be the fastest due to its high convergence rate which is independent of the problem ...V-cycle Multigrid method for finding the solution of a 2D-Poisson ...
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Adaptive metric-based multigrid for a Poisson problem with discontinuous coefficients*,, **
... Abstract. In order to solve the linear partial differential equation Au = f , we combine two methods: Full- Multigrid method and Hessian-based mesh adaptation. First, we define independently an ...
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Interweaving PFASST and Parallel Multigrid
... scheme multigrid method performed over multiple time steps in ...the method in terms of time parallelism, the solution of any spatial system arising from the use of implicit or semi-implicit temporal ...
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An Operator Smoothing with ILU(0) for Aggregation based Algebraic Multigrid
... with multigrid method as a ...For multigrid, we adopt original aggregation version here, with the coarsening scheme presented by Braess [3] and the Jacobi ...
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A Multigrid Solver for Discrete Thin Plate Splines
... the multigrid method with Gauss-Seidel smoother fails to do ...the multigrid methods works with Gauss-Seidel or Jacobi smoother, as our matrix S is neither diagonal dominated if λ small nor ...
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Research on Aggregations for Algebraic Multigrid Preconditioning Methods
... efficient method to solve sparse linear systems, and is often combined with Krylov subspace iterations to improve the robustness ...The multigrid method is composed of two processes, smoothing and ...
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Two Phase Flow in Three Dimensional Multigrid Model
... The multigrid technique is becoming popular in the field of the computational fluid dynamics,because of its enhanced ...The multigrid method is to carry out the early iteration on the fine grid and ...
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