Sign pattern, usability, representations and perturbation for the core-EP and weighted core-EP inverse

Ma, HF; Stanimirovic, PS; Mosic, D; Kyrchei, II

Stanimirovic, PS (corresponding author), Univ Nis, Fac Sci & Math, Dept Comp Sci, Visegradska 33, Nish 18000, Serbia.

APPLIED MATHEMATICS AND COMPUTATION, 2021; 404 ():

Abstract

New properties and representations for the core-EP inverse are developed. Particularly, the core-EP inverse of an upper triangular matrix and its sign......

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