Block computation and representation of a sparse nullspace basis of a rectangular matrix Le Borne, Sabine 2008 - TUHH Open Research
ℋ-matrix preconditioners for symmetric saddle-point systems from meshfree discretization Le Borne, Sabine Oliveira, Suely Yang, Fang 2008 - TUHH Open Research
Parallel black box ℋ-LU preconditioning for elliptic boundary value problems Grasedyck, Lars Kriemann, Ronald Le Borne, Sabine 2008 - TUHH Open Research