Mobile Calculi based on Domains

Contextual equivalence for higher-order pi-calculus revisited

A. Jeffrey and J. Rathke


The higher-order pi-calculus is an extension of the pi-calculus to allow communication of abstractions of processes rather than names alone. It has been studied intensively by Sangiorgi in his thesis where a characterisation of a contextual equivalence for higher-order pi-calculus is provided using labelled transition systems and normal bisimulations. Unfortunately the proof technique used there requires a restriction of the language to only allow finite types. We revisit this calculus and offer an alternative presentation of the labelled transition system and a novel proof technique which allows us to provide a fully abstract characterisation of contextual equivalence using labelled transitions and bisimulations for higher-order pi-calculus with recursive types also.

  author = \{A. Jeffrey and J. Rathke},
  title = \{Contextual equivalence for higher-order pi-calculus revisited},
  institution = \{{COGS},University of Sussex},
  year = \{2002}, 
  number = \{2002:04}, 
  url = \{}

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