A note on intersecting hypergraphs with large cover number

A note on intersecting hypergraphs with large cover number

We give a construction of r-partite r-uniform intersecting hypergraphs with cover number at least r − 4 for all but finitely many r. This answers a question of Abu-Khazneh, Barát, Pokrovskiy and Szabó, and shows that a long-standing unsolved conjecture due to Ryser is close to being best possible fo...

书目详细资料
Main Authors:	Haxell, P, Scott, A
格式:	Journal article
出版:	Electronic Journal of Combinatorics 2017

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