2 papers
math.NA2024
A generalized Nystrom method with column sketching for low-rank approximation of nonsymmetric matrices
Yatian Wang, Hua Xiang, Chi Zhang +1
This paper is concerned with the low-rank approximation for large-scale nonsymmetric matrices. Inspired by the classical Nystrom method, which is a popular method to find the low-r…
math.NA2021
Quantum Algorithm for Matrix Logarithm by Integral Formula
Songling Zhang, Hua Xiang
The matrix logarithm is one of the important matrix functions. Recently, a quantum algorithm that computes the state corresponding to matrix-vector product is p…