In mathematics and computer science, an event structure represents a set of events, some of which can only be performed after another (there is a dependency between the events) and some of which might not be performed together (there is a conflict between the events).
An event structure consists of
- a set of events
- a partial order relation on called causal dependency,
- an irreflexive symmetric relation called incompatibility (or conflict)
- finite causes: for every event , the set of predecessors of in is finite
- hereditary conflict: for every events , if and then .
- Winskel, Glynn (1987). "Event Structures" (PDF). Advances in Petri Nets. Lecture Notes in Computer Science. Springer.
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