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Stability of fast algorithms for matrix multiplication

โœ Scribed by Dario Bini; Grazia Lotti


Publisher
Springer-Verlag
Year
1980
Tongue
English
Weight
362 KB
Volume
36
Category
Article
ISSN
0029-599X

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Fast Spectral Projection Algorithms for
โœ Gregory Beylkin; Nicholas Coult; Martin J Mohlenkamp ๐Ÿ“‚ Article ๐Ÿ“… 1999 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 196 KB

We present a fast algorithm for the construction of a spectral projector. This algorithm allows us to compute the density matrix, as used in, e.g., the Kohn-Sham iteration, and so obtain the electron density. We compute the spectral projector by constructing the matrix sign function through a simple