Characteristic bisimulation for higher-order session processes

Dimitrios Kouzapas, Jorge A. Pérez, Nobuko Yoshida

Research output: Contribution to journalArticleAcademicpeer-review

3 Citations (Scopus)
214 Downloads (Pure)

Abstract

For higher-order (process) languages, characterising contextual equivalence is a long-standing issue. In the setting of a higher-order ππ -calculus with session types, we develop characteristic bisimilarity, a typed bisimilarity which fully characterises contextual equivalence. To our knowledge, ours is the first characterisation of its kind. Using simple values inhabiting (session) types, our approach distinguishes from untyped methods for characterising contextual equivalence in higher-order processes: we show that observing as inputs only a precise finite set of higher-order values suffices to reason about higher-order session processes. We demonstrate how characteristic bisimilarity can be used to justify optimisations in session protocols with mobile code communication.
Original languageEnglish
Pages (from-to)271-341
Number of pages69
JournalActa informatica
Volume54
Issue number3
DOIs
Publication statusPublished - May-2017

Keywords

  • PCF
  • PI-CALCULUS
  • FULL ABSTRACTION
  • CONCURRENCY
  • LINEARITY
  • SEMANTICS

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