A comment on Ryser's conjecture for intersecting hypergraphs

Toufik Mansour, Chunwei Song, Raphael Yuster

Let $\tau (\mathcal{H})$ be the cover number and $\nu (\mathcal{H})$ be the matching number of a hypergraph $\mathcal{H}$. Ryser conjectured that every $r$-partite hypergraph $\mathcal{H}…