2 citations · 3 across the 3 of their papers we have counts for
3 papers
math.NA2025★ 2 cited
An adaptive symplectic integrator for gravitational dynamics
Keqi Ye, Zizhe Cai, Mingji Wang +2
This paper presents an adaptive symplectic integrator, SQQ-PTQ, developed on the basis of the fixed-step symplectic integrator SQQ. To mitigate the Runge phenomenon, SQQ-PTQ employ…
math.NA2022★ 1 cited
Two Iterative algorithms for the matrix sign function based on the adaptive filtering technology
Feng Wu, Keqi Ye, Li Zhu +3
In this paper, two new efficient algorithms for calculating the sign function of the large-scale sparse matrix are proposed by combining filtering algorithm with Newton method and…
math.NA2022
A new stable and avoiding inversion iteration for computing matrix square root
Li Zhu, Keqi Ye, Yuelin Zhao +3
The objective of this research was to compute the principal matrix square root with sparse approximation. A new stable iterative scheme avoiding fully matrix inversion (SIAI) is pr…