4 papers · 1 filter
New results on EP elements in rings with involution
Long Wang, Dijana Mosic, Yuefeng Gao
In this paper, we mainly give characterizations of EP elements in terms of equations. In addition, a related notion named a central EP element is defined and investigated. Finally,…
On the existence of group inverses of Peirce corner matrices
Daochang Zhang, Dijana Mosic, Tin-Yau Tam
We give some statements that are equivalent to the existence of group inverses of Peirce corner matrices of a block matrix and its generalized Schur complements. As ap…
Right core inverse and the related generalized inverses
Long Wang, Dijana Mosic, Yuefeng Gao
In this paper, we introduce the notion of a (generalized) right core inverse and give its characterizations and expressions. Then, we provide the relation schema of (one-sided) cor…
Drazin inverses of the sum of four matrices and its applications
Daochang Zhang, Dijana Mosi\' c, Li Guo
Our aim is to establish relations between Drazin inverses of the pesudo-block matrix and the block matrix composed of , where . Based on the relatio…