Literature
In the following list a selection of references concerning ℋ-matrices can be found.

ℋ-FAINV: Hierarchically factored approximate inverse preconditioners,
Computing and Visualization in Science, Volume 17, Issue 3, pp 135-150,
2015.

ℋ-LU Factorization on Many-Core Systems,
Computing and Visualization in Science, 16, pp. 105-117,
2013.

Domain-decomposition based ℋ-LU preconditioning,
Numerische Mathematik 112, pp. 565-600,
2009.

SIAM J. Sci. Comput., 31:1820-1839,
2009.

Performance of ℋ-LU Preconditioning for Sparse Matrices,
Computational Methods in Applied Mathematics 8:4, pp. 336-349,
2008.

Parallel blackbox ℋ-LU preconditioning for elliptic boundary value problems,
Computing and Visualization in Science 11, pp. 273-291,
2007.

Ph.D. thesis, University of Leipzig,
2006.

Preprint Nr. 115/2005, MPI Leipzig,
(submitted to "Numerische Mathematik").

Preprint Nr. 114/2005, MPI Leipzig,
(submitted to "Numerische Mathematik").

Computing and Visualization in Sciences, 8/3-4, pp. 121-135,
2005.

Computing and Visualization in Sciences, 8/3-4, pp. 179-188,
2005.

Domain Decomposition Methods in Science and Engineering, LNCSE, Vol. 40, pp. 581-589,
2004.

Computing 64, pp. 21-47,
2000.

Computing 62, pp. 89-108,
1999.