On the stationary BBGKY hierarchy for equilibrium states
FM 4-12, arxiv:1205.2788
Authors G. Genovese, S. Simonella
We establish a new direct integration method to construct the solutions of
the stationary BBGKY hierarchy, assuming the usual Gaussian distribution of momenta. We
prove equivalence between the corresponding infinite hierarchy and the Kirkwood and Salsburg equations. A problem of existence and uniqueness of the solutions of the hierarchy with appropriate
boundary conditions is thus solved for low densities. The result is extended in a milder sense to
systems with a hard core interaction.