%0 Journal Article %T Core逆的一些新特征<br>The new properties of core inverse of matrices %A 罗高骏 %A 左可正 %A 周良< %A br> %A LUO Gao-jun %A ZUO Ke-zheng %A ZHOU Liang %J 山东大学学报(理学版) %D 2015 %R 10.6040/j.issn.1671-9352.0.2014.403 %X 摘要: 利用矩阵的Σ-K-L分解,研究了Core逆的性质,得到了Core逆的一些新特征,给出了Core逆的一些充要条件.<br>Abstract: Several new properties and characteristics of core inverse,the necessary and sufficient conditions of core inverse are given by the decomposition of Σ-K-L of the matrix %K Core逆 %K 广义逆 %K < %K strong> %K < %K em> %K &Sigma %K EP阵 %K < %K /em> %K -< %K em> %K K< %K /em> %K -< %K em> %K L< %K /em> %K < %K /strong> %K 分解 %K < %K br> %K core inverse %K generalized inverse %K decomposition of < %K strong> %K < %K em> %K Σ< %K /em> %K -< %K em> %K K< %K /em> %K -< %K em> %K L< %K /em> %K < %K /strong> %K EP matrix %U http://lxbwk.njournal.sdu.edu.cn/CN/10.6040/j.issn.1671-9352.0.2014.403