Right core inverses of a product and a companion matrix
Xiaofeng Chen, Jianlong Chen · Linear and Multilinear Algebra · 2019
In this paper, characterizations of right core inverse are given by one-sided invertibility. The necessary and sufficient conditions, which guarantee that paq has right core inverses, are investigated. Furthermore, characterizations of right core inverses of triangular matrices, 2×2 matrices and a companion matrix are considered.