Title: DESCRIPTION OF CRITICAL BEHAVIOUR OF MODEL SYSTEMS USING NON-GAUSSIAN MEASURES (YUKHNOVSKII'S APPROACH)
Author(s): M.P.Kozlovskii, O.V.Patsahan (Institute for Condensed Matter Physics of the National Academy of Sciences of Ukraine, 1 Svientsitskii Str., 79011 Lviv, Ukraine)

We present a brief review of the works devoted to a study of critical phenomena in three-dimensional model systems dwelling on the Yukhnovskii approach in detail. This approach which is based on the use of non-Gaussian measures allows one to obtain both universal and non-universal quantities. In order to illustrate the advantages of the approach proposed by I.R.Yukhnovskii we apply it to a study of non-universal quantities, namely: (1) the phase transition temperature of a $3D$ one-component lattice model, (2) the gas-liquid critical point properties of fluid systems.

Comments: Figs. 2, Refs. 40, Tabs. 2.