Xuefeng Xu

activity

20162024

most citedOn the perturbation of the Moore-Penrose inverse of a matrix

2 citations · 5 across the 14 of their papers we have counts for

collaborators

Showing 2018Show all

3 papers · 1 filter

math.NA2018★ 2 cited

On the perturbation of the Moore-Penrose inverse of a matrix

Xuefeng Xu

The Moore-Penrose inverse of a matrix has been extensively investigated and widely applied in many fields over the past decades. One reason for the interest is that the Moore-Penro…

math.NA2018★ 1 cited

On the perturbation of an $L^{2}$ -orthogonal projection

Xuefeng Xu

The $L^{2}$ -orthogonal projection onto a subspace is an important mathematical tool, which has been widely applied in many fields such as linear least squares problems, eigenvalue pr…

math.NA2018

A new estimate for a quantity involving the Chebyshev polynomials of the first kind

Xuefeng Xu, Chen-Song Zhang

In this paper, we establish a new estimate (including lower and upper bounds) for an important quantity involved in the convergence analysis of smoothed aggregation algebraic multi…

On the perturbation of the Moore-Penrose inverse of a matrix

On the perturbation of an L2-orthogonal projection

A new estimate for a quantity involving the Chebyshev polynomials of the first kind

On the perturbation of an $L^{2}$ -orthogonal projection