文章基本信息

标题：On polynomial EPr matrices
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作者：Ar. Meenakshi ; N. Anandam
期刊名称：International Journal of Mathematics and Mathematical Sciences
印刷版ISSN：0161-1712
电子版ISSN：1687-0425
出版年度：1992
卷号：15
期号：2
页码：261-266
DOI：10.1155/S0161171292000334
出版社：Hindawi Publishing Corporation
摘要：
This paper gives a characterization of EP r - λ -matrices. Necessary and sufficient conditions are determined for (i) the Moore-Penrose inverse of an EP r - λ -matrix to be an EP r - λ -matrix and (ii) Moore-Penrose inverse of the product of EP r - λ -matrices to be an EP r - λ -matrix. Further, a condition for the generalized inverse of the product of λ -matrices to be a λ -matrix is determined.