180 citations · 198 across the 7 of their papers we have counts for
3 papers · 1 filter
A Spectral Projection Preconditioner for Solving Ill Conditioned Linear Systems
Man-Chung Yeung, Craig C. Douglas, Long Lee
We present a preconditioner based on spectral projection that is combined with a deflated Krylov subspace method for solving ill conditioned linear systems of equations. Our result…
An Improved Lower Bound for -Brinkhuis -Triples
Michael Sollami, Craig C. Douglas, Manfred Liebmann
Let be the number of words consisting of the ternary alphabet consisting of the digits 0, 1, and 2 such that no subword (or factor) is a square (a word concatenated with itse…
On Solving Ill-Conditioned Linear Systems
Craig C. Douglas, Long Lee, Man-Chung Yeung
This paper presents the first results to combine two theoretically sound methods (spectral projection and multigrid methods) together to attack ill-conditioned linear systems. Our…