Les tournois (-1)-critiques

Houmem Belkhechine, Imed Boudabbous, Jamel Dammak

Given a tournament T=(V,A), a subset X of V is an interval of T provided that for any a, b\in X and x\in V-X, (a,x) \in A if and only if (b,x)\in A. For example, \emptyset, \{x\} (…