About Berge-Füredi's conjecture on the chromatic index of hypergraphs

Alain Bretto, Alain Faisant, François Hennecart

Published 2024-03-14Version 1

We show that the chromatic index of a hypergraph $\mathcal{H}$ satisfies Berge-F\"uredi conjectured bound $\mathrm{q}(\mathcal{H})\le \Delta([\mathcal{H}]_2)+1$ under certain hypotheses on the antirank $\mathrm{ar}(\mathcal{H})$ or on the maximum degree $\Delta(\mathcal{H})$. This provides sharp information in connection with Erd\H{o}s-Faber-Lov\'asz Conjecture which deals with the coloring of a family of cliques that intersect pairwise in at most one vertex.