Abstract
The source particle method (SPM) due to Percus and Verlet of obtaining the single particle density, and the pair and triplet distribution functions of classical fluids (as well as in the variational theory of Bose liquids) is studied. Generalizations of hypernetted chain (HNC) equations are generated by holding fixed the coordinates of the definite group of source particles. Special attention is paid to the triplet distribution function and to the self-consistent calculation of the bridge function (elementary diagram) contribution in the pair distribution function. A comparison with the other exact integral equation theories including the BBGKY-equations is discussed.
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