22 citations · 54 across the 6 of their papers we have counts for
4 papers · 1 filter
On efficient block Krylov-solvers for -matrices
Sven Christophersen
Hierarchical matrices provide a highly memory-efficient way of storing dense linear operators arising, for example, from boundary element methods, particularly when stored in the H…
Large-scale magnetostatic field calculation in finite element micromagnetics with H2-matrices
Riccardo Hertel, Sven Christophersen, Steffen Börm
Magnetostatic field calculations in micromagnetic simulations can be numerically expensive, particularly in the case of large-scale finite element simulations. The established fini…
GCA- matrix compression for electrostatic simulations
Steffen Börm, Sven Christophersen
We consider a compression method for boundary element matrices arising in the context of the computation of electrostatic fields. Green cross approximation combines an analytic app…
Approximation of integral operators by Green quadrature and nested cross approximation
Steffen Börm, Sven Christophersen
We present a fast algorithm that constructs a data-sparse approximation of matrices arising in the context of integral equation methods for elliptic partial differential equations.…