Faustmann, Markus; Melenk, Jens Markus; Parvizi, Maryam
(Dordrecht [u.a.] : Springer Science + Business Media B.V, 2022)
The inverse of the stiffness matrix of the time-harmonic Maxwell equation with perfectly conducting boundary conditions is approximated in the blockwise low-rank format of H-matrices. Under a technical assumption on the ...