Connected to relation
The relation connected to, which is denoted by the symbol , is defined for a given subset of nodes and a node ; we say that is connected to and write if and only if a directed hyperpath exsists in a hypergraph from to the node .
It is easy to check that the relation satisfies the following set of connectivity axioms:
- Евстигнеев В.А., Касьянов В.Н. Словарь по графам в информатике. — Новосибирск: Сибирское Научное Издательство, 2009.