Compression for data archiving and backup revisited
Corneliu Constantinescu
SPIE Optical Engineering + Applications 2009
In Kohn-Sham density functional theory, equations for occupied orbital functions of a model state are derived from the exact ground-state energy functional of Hohenberg and Kohn. The exchange-correlation potential in these exact Kohn-Sham equations is commonly assumed to be a local potential function rather than a more general linear operator. This assumption is tested and shown to fail for the exchange potential in a Hartree-Fock model for atoms, for which accurate solutions are known.
Corneliu Constantinescu
SPIE Optical Engineering + Applications 2009
Hang-Yip Liu, Steffen Schulze, et al.
Proceedings of SPIE - The International Society for Optical Engineering
Martin Charles Golumbic, Renu C. Laskar
Discrete Applied Mathematics
R.A. Brualdi, A.J. Hoffman
Linear Algebra and Its Applications