Speaker
Lauri Nyman
(University of Manchester)
Description
In this talk, we consider the theoretical convergence of flexible GMRES. While convergence of standard GMRES is well studied, there exist few results of similar nature for flexible GMRES. The aim of this talk is to discuss and fill in this gap. In addition, we report on experiences of using these ideas in the context of randomized sketching.
Author
Lauri Nyman
(University of Manchester)
Co-authors
Prof.
John Pearson
(University of Edinburgh)
Stefan Guettel
(The University of Manchester)