中文摘要：

研究拟行（列）对称矩阵的极分解、广义逆和扰动界,给出了拟行（列）对称矩阵的极分解和广义逆的计算公式,并对拟行（列）对称矩阵的极分解作了扰动分析.结果表明,该方法既减少了计算量与存储量,又不会降低数值精度.

英文摘要：

The author studied the polar factorization and generalized inverse and perturbation bound of quasi-row（column） symmetric matrix,which leads to some new results,and presented the formula of the polar factorization and generalized inverse of quasi-row（column） symmetric matrix,which makes calculation easier.In addition,some perturbation bounds of the polar factorization of quasi-row （column） symmetric matrix were also presented.