报告摘要：

  In this talk we present results related to the convergence of multilevel/multigrid methods, applied to discretizations of elliptic PDEs, that lead to symmetric positive definite linear systems. The presentation is based on the subspace correction framework. The abstract theory is applied to examples coming from finite element discretizations of scalar elliptic partial differential equations and we show how some of the known estimates of the convergence rate of the multigrid method can be obtained in a straightforward fashion. We also comment on some special two level techniques that are used in construction of optimal Algebraic Multigrid Methods.

报告时间： 2006年8月3日(周四) 上午9:00--10:00

报告地点：科技综合楼三层311报告厅