On $3$-graphs with vanishing codegree Turán density

Laihao Ding, Ander Lamaison, Hong Liu +2

For a $k$-uniform hypergraph (or simply $k$-graph) $F$, the codegree Turán density ${\pi }_{\mathrm{co}}(F)$ is the supremum over all $\alpha$ such that there exist arbitrarily large $n$-ver…