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On the size of maximal intersecting families

Part of: Graph theory Extremal combinatorics

Published online by Cambridge University Press:  08 September 2023

Dmitrii Zakharov
Dmitrii Zakharov*
Affiliation:
Department of Mathematics, Massachusetts Institute of Technology, Cambridge, MA, USA
*
Email: [email protected]
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Abstract

We show that an $n$-uniform maximal intersecting family has size at most $e^{-n^{0.5+o(1)}}n^n$. This improves a recent bound by Frankl ((2019) Comb. Probab. Comput. 28(5) 733–739.). The Spread Lemma of Alweiss et al. ((2020) Proceedings of the 52nd Annual ACM SIGACT Symposium on Theory of Computing.) plays an important role in the proof.

Keywords

Erdos–Lovasz problemintersecting familyminimal covers

MSC classification

Primary: 05D05: Extremal set theory
Secondary: 05C35: Extremal problems 05C65: Hypergraphs 05D15: Transversal (matching) theory
Type
Paper
Information
Combinatorics, Probability and Computing , Volume 33 , Issue 1 , January 2024 , pp. 32 - 49
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Copyright
© The Author(s), 2023. Published by Cambridge University Press

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References

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