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用割线法求矩阵的极分解 被引量:2

COMPUTING THE POLAR DECOMPOSITION WITH THE SECANT METHOD
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摘要 本文提出了求非奇异矩阵酉极因子的割线法,证明割线法是q-超线性收敛.并用数值例子说明割线法是有效的. In this paper we present a secant method for computing the unitary polar factor of the polar decomposition and prove its q-superlinear convergent. Some numerical examples illustrate that the secant method is effective.
出处 《计算数学》 CSCD 北大核心 2014年第3期225-230,共6页 Mathematica Numerica Sinica
基金 广东省自然科学基金(S2013010012530)项目资助
关键词 割线法 极分解 酉极因子 FROBENIUS范数 Secant method polar decomposition unitary polar factor Frobenius norm
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