On Path-Based Coalgebras and Weak Notions of Bisimulation

Authors Harsh Beohar, Sebastian Küpper

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Harsh Beohar
Sebastian Küpper

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Harsh Beohar and Sebastian Küpper. On Path-Based Coalgebras and Weak Notions of Bisimulation. In 7th Conference on Algebra and Coalgebra in Computer Science (CALCO 2017). Leibniz International Proceedings in Informatics (LIPIcs), Volume 72, pp. 6:1-6:17, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)


It is well known that the theory of coalgebras provides an abstract definition of behavioural equivalence that coincides with strong bisimulation across a wide variety of state-based systems. Unfortunately, the theory in the presence of so-called silent actions is not yet fully developed. In this paper, we give a coalgebraic characterisation of branching (delay) bisimulation in the context of labelled transition systems (fully probabilistic systems). It is shown that recording executions (up to a notion of stuttering), rather than the set of successor states, from a state is sufficient to characterise the respected bisimulation relations in both cases.
  • Paths
  • Executions
  • Branching bisimulation
  • Coalgebras


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