Prove the linear-threshold bound for t-intersecting hypergraphs

Establish that there exists an absolute constant c such that, for every t-intersecting k-uniform hypergraph F\subset\binom{[n]}{k} and every n\geq ckt, the (k+2)th largest degree satisfies d_{k+2}(F)\leq\binom{n-t-1}{k-t-1}.

Background

Theorem 5 proves that every t-intersecting k-graph has d_{k+2}(F)\leq\binom{n-t-1}{k-t-1} under the substantially stronger condition n\geq\binom{t+2}{2}k2, with k>t\geq 1.

The conjecture seeks to reduce this quadratic-type threshold in k and t to a linear threshold n\geq ckt, with c an absolute constant, while retaining the same degree bound.

References

Let $F\subset \binom{[n]}{k}$ be a $t$-intersecting family. Then for some absolute constant $c$ and $n\geq ckt$, $d_{k+2}(F)\leq \binom{n-t-1}{k-t-1}$.

On the largest degrees in intersecting hypergraphs  (2511.15508 - Frankl et al., 19 Nov 2025) in Conjecture at the end of Section 7 (Concluding remarks)