On polynomial EPr matrices

Ar.  Meenakshi; N.  Anandam

doi:10.1155/s0161171292000334

International Journal of Mathematics and Mathematical Sciences (Jan 1992)

On polynomial EPr matrices

Ar. Meenakshi,
N. Anandam

Affiliations

Ar. Meenakshi: Department of Mathematics, Annamalai University, Annamalainagar 608 002, Tamil Nadu, India
N. Anandam: Department of Mathematics, Annamalai University, Annamalainagar 608 002, Tamil Nadu, India

DOI: https://doi.org/10.1155/s0161171292000334
Journal volume & issue: Vol. 15, no. 2
pp. 261 – 266

Abstract

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This paper gives a characterization of EPr-λ-matrices. Necessary and sufficient conditions are determined for (i) the Moore-Penrose inverse of an EPr-λ-matrix to be an EPr-λ-matrix and (ii) Moore-Penrose inverse of the product of EPr-λ-matrices to be an EPr-λ-matrix. Further, a condition for the generalized inverse of the product of λ-matrices to be a λ-matrix is determined.

Published in International Journal of Mathematics and Mathematical Sciences

ISSN: 0161-1712 (Print); 1687-0425 (Online)
Publisher: Wiley
Country of publisher: United Kingdom
LCC subjects: Science: Mathematics
Website: https://onlinelibrary.wiley.com/journal/6396

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