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.NA2026
Reduced rank extrapolation for multi-term Sylvester equations
Peter Benner, Pascal den Boef, Patrick Kürschner +2
We investigate the acceleration of stationary iterations for multi-term Sylvester equation by means of reduced rank extrapolation (RRE). Theoretical convergence results and impleme…