On a generalization of Kelly''s combinatorial lemma
Aymen Ben Amira, Jamel Dammak, Hamza Si Kaddour · TURKISH JOURNAL OF MATHEMATICS · 2014
Kelly's combinatorial lemma is a basic tool in the study of Ulam's reconstruction conjecture. A generalization in terms of a family of t -elements subsets of a v -element set was given by Pouzet. We consider a version of this generalization modulo a prime p. We give illustrations to graphs and tournaments.