This article is cited in 6 papers

Direct Variational Method in the Theory of Liquids

É. A. Arinstein

Tyumen State University

Abstract: We consider a variational problem equivalent to the hyperchain approximation for the binary (radial) function in the classical theory of liquids and show that the additional condition including the direct correlation function in the functional along with the total correlation function can be taken into account if both these functions are considered independent for a suitable modification of the varied functional.

Keywords: distribution, total correlation, direct correlation, variational principle, direct method.

Received: 29.12.2003

DOI: 10.4213/tmf109

 English version: Theoretical and Mathematical Physics, 2004, 141:1, 1461–1468

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