### Samenvatting

In Proceedings ICE 2015, arXiv:1508.04595. arXiv admin note: substantial text overlap with arXiv:1410.4512
Reactive Turing machines extend classical Turing machines with a facility to model observable interactive behaviour. We call a behaviour executable if, and only if, it is behaviourally equivalent to the behaviour of a reactive Turing machine. In this paper, we study the relationship between executable behaviour and behaviour that can be specified in the pi-calculus. We establish that all executable behaviour can be specified in the pi-calculus up to divergence-preserving branching bisimilarity. The converse, however, is not true due to (intended) limitations of the model of reactive Turing machines. That is, the pi-calculus allows the specification of behaviour that is not executable up to divergence-preserving branching bisimilarity. Motivated by an intuitive understanding of executability, we then consider a restriction on the operational semantics of the pi-calculus that does associate with every pi-term executable behaviour, at least up to the version of branching bisimilarity that does not require the preservation of divergence.

Originele taal-2 | Engels |
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Titel | 8th Interaction and Concurrency Experience (ICE 2015, Grenoble, France, June 4-5, 2015) |

Redacteuren | S. Knight, I. Lanese, A. Lluch Lafuente, H. Torres Vieira |

Uitgeverij | EPTCS |

Pagina's | 37-52 |

DOI's | |

Status | Gepubliceerd - 2015 |

### Publicatie series

Naam | Electronic Proceedings in Theoretical Computer Science |
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Volume | 189 |

ISSN van geprinte versie | 2075-2180 |

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## Citeer dit

Luttik, B., & Yang, F. (2015). Executable behaviour and the π-calculus (extended abstract). In S. Knight, I. Lanese, A. Lluch Lafuente, & H. Torres Vieira (editors),

*8th Interaction and Concurrency Experience (ICE 2015, Grenoble, France, June 4-5, 2015)*(blz. 37-52). (Electronic Proceedings in Theoretical Computer Science; Vol. 189). EPTCS. https://doi.org/10.4204/EPTCS.189.5