Standard and Economical Cascadic Multigrid Methods for the Mortar Finite Element Methods

摘要

In this paper,standard and economical cascadic multigrid methods are considered for solving the algebraic systems resulting from the mortar finite element methods. Both cascadic multigrid methods do not need full elliptic regularity,so they can be used to tackle more general elliptic problems.Numerical experiments are reported to support our theory.