摘要
本文讨论了处理可对称化不定问题的不精确Newton方法,并针对问题的特殊结构提出了不精确Newton-PSMINRES算法。理论分析与数值试验表明,Newton-PSMINRES算法优于其它处理可对称化不定问题的不精确Newton-Krylov算法。
Inexact Newton methods for symmetrizable indefinite problems are studied in this paper. Aimed at the special structure of such class of problems, Newton-PSMINRES algorithm is given. Theoritical analysis and numerical computations show that Newton-PSMINRES algorithm has better performance than Newton-Krylov algorithms for symmetrizable indefinite problems.
出处
《工程数学学报》
CSCD
北大核心
2004年第F12期11-16,共6页
Chinese Journal of Engineering Mathematics
