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$H$-matrix approximation for the operator exponential with applications. Numer. Math (to appear).
MR 1917366
[2] I. P. Gavrilyuk, W. Hackbusch, B. N. Khoromskij:
$H$-matrix approximation for elliptic solution operators in cylindric domains. East-West J. Numer. Math. 9 (2001), 25–58.
MR 1839197
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[4] W. Hackbusch:
A sparse matrix arithmetic based on $H$-Matrices. Part I: Introduction to $H$-Matrices. Computing 62 (1999), 89–108.
MR 1694265
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On the fast matrix multiplication in the boundary element method by panel clustering. Numer. Math. 54 (1989), 463–491.
MR 0972420
[6] W. Hackbusch, B. N. Khoromskij:
A sparse $H$-matrix arithmetic. Part II: Application to multi-dimensional problems. Computing 64 (2000), 21–47.
MR 1755846
[7] W. Hackbusch, B. N. Khoromskij:
A sparse $H$-matrix arithmetic: general complexity estimates. J. Comput. Appl. Math. 125 (2000), 479–501.
MR 1803209
[8] W. Hackbusch, B. N. Khoromskij, S. A. Sauter:
On $H^{2}$-matrices. Lectures on applied mathematics, Hans-Joachim Bungartz, Ronald H. W. Hoppe, Christoph Zenger (eds.), Springer, Berlin, 2000, pp. 9–29.
MR 1767775
[9] W. Hackbusch, B. N. Khoromskij:
$H$-matrix approximation on graded meshes. The Mathematics of Finite Elements and Applications X, MAFELAP 1999, John R. Whiteman (ed.), Elsevier, Amsterdam, 2000, pp. 307–316.
MR 1801984
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Mosaic-skeleton approximation. Calcolo 33 (1996), 47–57.
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