Russo's formula for random interlacements
arXiv:1412.0971 · doi:10.1007/s10955-015-1268-z
Abstract
In this paper we obtain a couple of explicit expressions for the derivative of the probability of an increasing event in the random interlacements model. The event is supported in a finite subset of the lattice, and the derivative is with respect to the intensity parameter of the model.
14 pages, 3 figures, added section, accepted for publication in the Journal of Statistical Physics