Thimonnier L., Using Generating Functions to Compute Concurrency

We present succinctly the Arnold-Nivat's model for the synchronization of sequential preocesses, and we recall the concurrency measure defined by Beauquier, Dérard and Thimonier. We present here a new technics for the computation of this measure avoiding very often a very expensive part of the computation. We illustrate this method by the mutual exclusion example