activity
20132026
most citedRepresentations for the Drazin inverse of the generalized Schur complement

1 citations · 3 across the 10 of their papers we have counts for

collaborators

11 papers

math.NA2026

Additive results of the dual Moore--Penrose generalized inverse with an application to rigid-body motion estimation

Yup Zhao, Daochang Zhang

We derive explicit formulas for the dual Moore--Penrose generalized inverse (DMPGI) of dual complex matrix sums under some conditions. We first express the DMPGI of a matrix partit…

math.NA2026★ 1 cited

Formulae for the Drazin inverse of Modified Tensors via the Einstein Product

Yue Zhao, Daochang Zhang, Dijana Mosic

This paper establishes exact expressions for the Drazin inverse of the modified tensor via the Einstein product, formulated usin…

math.NA2026

Perturbation Analysis of the QT-Drazin Inverse of Quaternion Tensors via the QT-Product

Yue Zhao, Daochang Zhang, Jingqian Li +1

The motivation of this paper is to investigate the perturbation theory for the QT-Drazin inverse of quaternion tensors under the QT-product via the associated -block circulant r…

math.CO2026

On the Dual Drazin Inverse of Adjacency Matrices of Dual-number-Weighted Digraphs

Yue Zhao, Daochang Zhang, Zhongshan Li +1

The motivation of this paper is to investigate the dual Drazin inverse of adjacency matrices arising from several classes of connected dual-number-weighted digraphs over the dual c…

math.FA2026

Perturbation analysis of tensor -inverse via Einstein product

Daochang Zhang, Jingqian Li, Dijana Mosic +1

We investigate the influence of a relatively small perturbation on various generalized inverses functions or quantities derived from a tensor .When a small tensor pert…

math.NA2026

On the Block-Diagonalization and Multiplicative Equivalence of Quaternion -Block Circulant Matrices with their Applications

Daochang Zhang, Yue Zhao, Jingqian Li +1

The motivation of this paper is twofold. First, we investigate the block-diagonalization of the -block circulant matrix , based on this block-diago…

math.FA2019

Weighted weak group inverse for Hilbert space operators

Dijana Mosic, Daochang Zhang

We present the weighted weak group inverse, which is a new generalized inverse of operators between two Hilbert spaces, introduced to extend weak group inverse for square matrices.…

math.RA2018

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…

math.RA2017

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…

math.OA2014★ 1 cited

Representations for generalized Drazin inverse of operator matrices over a Banach space

Daochang Zhang

In this paper we give expressions for the generalized Drazin inverse of a (2,2,0) operator matrix and a operator matrix under certain circumstances, which generalizes an…

math.RA2013★ 1 cited

Representations for the Drazin inverse of the generalized Schur complement

Daochang Zhang, Xiankun Du

In this paper we present expressions for the Drazin inverse of the generalized Schur complement in terms of the Drazin inverses of and the generalized Schur complem…