An Algebraic Multigrid Algorithm For Elliptic Variational Inequality With Obstacle And It's Parallel Processing

A modified algebraic multigrid method(called MAMG) is presented,which solves the discrete problem of a kind of elliptic variational inequality with obstacle constraints, follow the MAMG, we give a parallel method of it, One numerical experiment is given, and the results show that MAMG algorithm is efficient and robust on adaptive mesh.