Proof of the Caccetta-Häggkvist conjecture for oriented graphs with positive minimum out-degree and of independence number two

Nicolas Lichiardopol. Proof of the Caccetta-Häggkvist conjecture for oriented graphs with positive minimum out-degree and of independence number two. Discrete Mathematics, 313(14):1540-1542, 2013. [doi]

Abstract

Abstract is missing.