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 2024Show all

1 paper · 1 filter

math.NA2024

Convergence analysis of two-grid methods for symmetric positive semidefinite systems

Xuefeng Xu

Two-grid theory plays a fundamental role in the design and analysis of multigrid methods. This paper is devoted to a new convergence analysis of two-grid methods for singular and s…