CASCADIC MULTIGRID FOR FINITE VOLUME METHODS FOR ELLIPTIC PROBLEMS

• 来源期刊: 计算数学(英文版)
• 关键词: cascadic mulitgrid Finite volume methods Elliptic problems.
• 年，卷（期）: 2004,（6）
• 页码范围: 905-920
• 页数: 16页
• 语种: 英文

摘要

In this paper, some effective cascadic multigrid methods are proposed for solving the large scale symmetric or nonsymmetric algebraic systems arising from the finite volumemethods for second order elliptic problems. Its is shown that these algorithms are optimal in both accuracy and computational complexity. Numerical expermients are repored to support out theory.