2 papers
math.NA2025
Block CG algorithms revisited
Petr Tichý, Gérard Meurant, Dorota Šimonová
Our goal in this paper is to clarify the relationship between the block Lanczos and the block conjugate gradient (BCG) algorithms. Under the full rank assumption for the block vect…
math.NA2025
Error norm estimates for the block conjugate gradient algorithm
Gérard Meurant, Petr Tichý
In the book [Meurant and Tichy, SIAM, 2024] we discussed the estimation of error norms in the conjugate gradient (CG) algorithm for solving linear systems with a symmetric p…