Graph Based Multilevel Algorithms for Preconditioning Finite Element Problems.

Vassilevski, P. S.

Technical Information Center Oak Ridge Tennessee

关键词: Algorithms;    Finite element method;    Factorization;    Topology;    Numerical analysis;   

RP-ID  :  DE200415006492

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

This paper discusses: (1) A general block-factorization (matrix) form of multilevel preconditioners; algebraic methods; (2) Selecting parameters based on the matrix topology; graph based algorithms; (3) Examples of coarsening; (4) Numerical experiments.