Term graph rewriting for the π-calculus

We propose a graphical implementation for (possibly) recursive processes of the pi-calculus, encoding each process into a term graph. Our implementation is sound and complete with respect to the standard structural congruence for the calculus: Two processes are equivalent if and only if they are mapped into isomorphic term graphs. Most importantly, the encoding allows for using standard graph rewriting mechanisms in modelling the reduction semantics of the calculus