Zi-Chao Dong

activity

20232026

most citedBipartite Turán problems via graph gluing

1 citations · 1 across the 7 of their papers we have counts for

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4 papers · 1 filter

math.CO2025

Large grid subsets without many cospherical points

Zichao Dong, Zijian Xu

Motivated by intuitions from projective algebraic geometry, we provide a novel construction of subsets of the $d$ -dimensional grid $[n]^{d}$ of size $n - o (n)$ with no $d + 2$ points…

math.CO2025

Induced rational exponents and bipartite subgraphs in $K_{s, s}$ -free graphs

Zichao Dong, Jun Gao, Ruonan Li +1

In this paper, we study a general phenomenon that many extremal results for bipartite graphs can be transferred to the induced setting when the host graph is $K_{s, s}$ -free. As ma…

math.CO2025

Set families: restricted distances via restricted intersections

Zichao Dong, Jun Gao, Hong Liu +2

Denote by $f_{D} (n)$ the maximum size of a set family $F$ on $[n] = {1, \dots, n}$ with distance set $D$ . That is, $∣ A △ B ∣ \in D$ holds for every pair of di…

math.CO2025★ 1 cited

Bipartite Turán problems via graph gluing

Zichao Dong, Jun Gao, Hong Liu

For graphs $H_{1}$ and $H_{2}$ , if we glue them by identifying a given pair of vertices $u \in V (H_{1})$ and $v \in V (H_{2})$ , what is the extremal number of the resulting graph $H_1^u \od…

Large grid subsets without many cospherical points

Induced rational exponents and bipartite subgraphs in Ks,s​-free graphs

Set families: restricted distances via restricted intersections

Bipartite Turán problems via graph gluing

Induced rational exponents and bipartite subgraphs in $K_{s, s}$ -free graphs