Non-trivial $r$-wise agreeing families

Autor: Frankl, Peter, Kupavskii, Andrey
Rok vydání: 2024
Předmět:
Druh dokumentu: Working Paper
Popis: A family of sets is $r$-wise agreeing if for any $r$ sets from the family there is an element $x$ that is either contained in all or contained in none of the $r$ sets. The study of such families is motivated by questions in discrete optimization. In this paper, we determine the size of the largest non-trivial $r$-wise agreeing family. This can be seen as a generalization of the classical Brace-Daykin theorem.
Databáze: arXiv