Compositional event structure semantics for the internal π-calculus

  • Authors:
  • Silvia Crafa;Daniele Varacca;Nobuko Yoshida

  • Affiliations:
  • Università di Padova;PPS - Université Paris 7 & CNRS;Imperial College London

  • Venue:
  • CONCUR'07 Proceedings of the 18th international conference on Concurrency Theory
  • Year:
  • 2007

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Abstract

We propose the first compositional event structure semantics for a very expressive p-calculus, generalising Winskel's event structures for CCS. The p-calculus we model is the pI-calculus with recursive definitions and summations. First we model the synchronous calculus, introducing a notion of dynamic renaming to the standard operators on event structures. Then we model the asynchronous calculus, for which a new additional operator, called rooting, is necessary for representing causality due to new name binding. The semantics are shown to be operationally adequate and sound with respect to bisimulation.