2 papers
math.NA2026
Mixed-precision algorithms for solving the Sylvester matrix equation
Andrii Dmytryshyn, Massimiliano Fasi, Nicholas J. Higham +1
We consider the solution of the Sylvester equation in mixed precision. We derive a new iterative refinement scheme to solve perturbed quasi-triangular Sylvester equations…
math-ph2025
Exact quantum dynamics of Fermi--Hubbard systems using the Gaussian phase-space representation with diffusion gauges
F Rousse, M Fasi, A Dmytryshyn +3
We use the Gaussian Phase-Space Representation to solve the real-time dynamic of interacting fermions in 1D, 2D, and 3D systems. The method is exact up to a spiking point, which re…