Abstract
A representation of interval orders by sequences of antichains is discussed and its relationship to the Fishburn’s representation by sequences of beginnings and endings is analyzed in detail. Using sequences of antichains to model operational semantics of elementary inhibitor nets is also discussed.
Partially supported by NSERC grant of Canada.
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Notes
- 1.
- 2.
For uncountable X it is additionally required that the equivalence relation \(\sim _<\) defined as \(a \sim _<~\!b \iff \forall c\in X. (c<a \Leftrightarrow c<b) \wedge (a<c \Leftrightarrow b<c)\) has countably many equivalence classes [6]. But in this paper we need only a simpler version for countable X, cf. [11].
- 3.
Inhibitor arcs allow a transition to check for an absence of a token. In principle they allow ‘test for zero’, an operator the standard Petri nets do not have. They were introduced in [1].
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Janicki, R. (2018). Modeling Operational Semantics with Interval Orders Represented by Sequences of Antichains. In: Khomenko, V., Roux, O. (eds) Application and Theory of Petri Nets and Concurrency. PETRI NETS 2018. Lecture Notes in Computer Science(), vol 10877. Springer, Cham. https://doi.org/10.1007/978-3-319-91268-4_13
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