A preconditioned MINRES method for block lower triangular Toeplitz systems
In this study, a novel preconditioner based on the absolute-value block α-circulant matrix
approximation is developed, specifically designed for nonsymmetric dense block lower …
approximation is developed, specifically designed for nonsymmetric dense block lower …
A novel α-absolute value preconditioner for all-at-once systems from heat equations
J Zhang, G Xu - Computers & Mathematics with Applications, 2024 - Elsevier
In this paper, we generalize a fast Fourier transforms (FFTs) based preconditioner and
propose a novel α-absolute value preconditioner for all-at-once systems from heat …
propose a novel α-absolute value preconditioner for all-at-once systems from heat …
[PDF][PDF] A preconditioned MINRES method for block lower triangular Toeplitz systems
CLXLS Hon, SL Wu - researchgate.net
In this study, a novel preconditioner based on the absolute-value block αcirculant matrix
approximation is developed, specifically designed for nonsymmetric dense block lower …
approximation is developed, specifically designed for nonsymmetric dense block lower …