Multigrid method
Numerical algorithms for solving large systems

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Multigrid method


Numerical algorithms for solving large systems

Author : Pierre SPITERI

Publication date: October 10, 2002 | Lire en français

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5. Multigrid method

  • To explain the principle of the multigrid method as simply as possible, we begin by presenting the 2-Grid method, which combines two poorly performing methods to produce a highly efficient method. We consider a fine grid with step size h and a coarse grid with step size H = 2h, and the solution of a one-dimensional Poisson problem with homogeneous Dirichlet boundary conditions.

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