MORE: talk by I. Pultarová

The talk Algebraic multigrid with adaptive coarse space, by Ivana Pultarová, is held on Monday November 11, 2013 at 8:30 in room K4.

We show a new idea of a multilevel preconditioning of linear systems with sparse, symmetric and positive definite matrices. The coarse space can change in every cycle while the computation effort remains almost the same. The main issue is what kind of strategy yields the coarse problems that highly reduce a current error.