Critical tournament — критический турнир.
Given a tournament , a subset of is an interval of provided that for every and , if and only if . For example, , and are intervals, called trivial intervals. A tournament all intervals of which are trivial is called indecomposable; otherwise, it is decomposable. An indecomposable tournament is then said to be critical if for each , is decomposable and if there are such that is indecomposable.
- Евстигнеев В.А., Касьянов В.Н. Словарь по графам в информатике. — Новосибирск: Сибирское Научное Издательство, 2009.