Tingzeng Wu

collaborators

5 papers

math.CO2026

Spectral extremal hypergraphs without long Berge cycles

Lihua Feng, Lu Lu, Tingzeng Wu

Let $r \geq 3$ and $k \geq 2 r + 1$ be fixed integers. We determine, for all sufficiently large $n$ , the maximum adjacency-tensor spectral radius of an $n$ -vertex $r$ -uniform hypergraph c…

math.CO2026

An improved range for the maximum critically $t$ -intersecting hypergraphs

Lu Lu, Rongrong Lu, Qifan Wang +1

Let $k > t \geq 1$ be integers and set $d = k - t$ . A $k$ -uniform hypergraph $F$ is called $t$ -intersecting if any two edges intersect in at least $t$ vertices, and is called $t$ -…

math.CO2026

Thresholds for the Frankl-Wang $3/7$ conjecture on maximum-degree ratios

Zejun Huang, Zhiyi Liu, Lu Lu +1

Let $F \subset (k [ n ])$ be an intersecting family, $Δ (F) = max_{x \in [n]} ∣ {F \in F : x \in F} ∣$ , and $\varrho(\mathcal{F})=Δ(\mathcal{F})/|\mathcal{F}…

math.CO2026

Bollobás-type inequalities for subspaces via weight invariance

Zhiyi Liu, Lihua Feng, Tingzeng Wu

Let $V$ be an $n$ -dimension real vector space with a direct sum decomposition $V = V_{1} \oplus \dots \oplus V_{r}$ . Let $P = {(A_{i}, B_{i}) : i \in [m]}$ be a skew Bollobás…

math.CO2025

The number of rooted spanning forests of bicirculant graphs

Jing Yang, Lihua Feng, Rongrong Lu +1

A bi-Cayley graph over the cyclic group $(Z_{n}, +)$ is called a bicirculant graph. Let $Γ = B C (Z_{n}; R, T, S)$ be a bicirculant graph with $R=-R\subseteq \mathbb{Z}_n\s…

Spectral extremal hypergraphs without long Berge cycles

An improved range for the maximum critically t-intersecting hypergraphs

Thresholds for the Frankl-Wang 3/7 conjecture on maximum-degree ratios

Bollobás-type inequalities for subspaces via weight invariance

The number of rooted spanning forests of bicirculant graphs

An improved range for the maximum critically $t$ -intersecting hypergraphs

Thresholds for the Frankl-Wang $3/7$ conjecture on maximum-degree ratios