1990
DOI: 10.1002/pssb.2221580219
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The Functional Equations for the Kinetic and Exchange Energy Functionals

Abstract: The Hohenberg-Kohn theorem proves the existence of a universal energy functional. But still its explicit structure is unknown. Unknown parts of the energy functional, namely the kinetic and the exchange interaction energy are discussed. Based on a functional formulation of the virial theorem "functional equations" for these unknown quantities are deduced establishing a relation between the functional and its derivative. Though there is no general formalism for solving such equations they may be used to determi… Show more

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