Cascadic Multigrid Method for the Mortar Element Method for $P_1$ Nonconforming Element

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Abstract

In this paper, we consider the cascadic multigrid method for the mortar $P_1$ nonconforming element which is used to solve the Poisson equation and prove that the cascadic conjugate gradient method is accurate with optimal complexity.  

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Mortar $P_1$ nonconforming element Cascadic multigrid method.
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Cascadic Multigrid Method for the Mortar Element Method for $P_1$ Nonconforming Element. (2005). Journal of Computational Mathematics, 23(4), 425-440. https://gsp.tricubic.dev/JCM/article/view/11722