# The Brown-Erd\H{o}s-S\'os Conjecture in finite abelian groups

**Authors:** Jozsef Solymosi, Ching Wong

arXiv: 1901.09871 · 2019-01-29

## TL;DR

This paper proves the Brown-Erdős-Sós conjecture for 3-uniform hypergraphs derived from finite abelian groups, confirming that such hypergraphs with certain properties have o(n^2) edges.

## Contribution

The paper establishes the conjecture specifically for triple systems from finite abelian groups, a significant case in extremal combinatorics.

## Key findings

- Proves the conjecture for hypergraphs from finite abelian groups
- Shows that such hypergraphs with no large dense substructures have o(n^2) edges
- Advances understanding of extremal properties in algebraic combinatorics

## Abstract

The Brown-Erd\H{o}s-S\'{o}s conjecture, one of the central conjectures in extremal combinatorics, states that for any integer $m\geq 6,$ if a 3-uniform hypergraph on $n$ vertices contains no $m$ vertices spanning at least $m-3$ edges, then the number of edges is $o(n^2).$ We prove the conjecture for triple systems coming from finite abelian groups.

## Full text

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## Figures

2 figures with captions in the complete paper: https://tomesphere.com/paper/1901.09871/full.md

## References

8 references — full list in the complete paper: https://tomesphere.com/paper/1901.09871/full.md

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Source: https://tomesphere.com/paper/1901.09871