Jin Deng

activity

20232026

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4 papers · 1 filter

math.CO2026

The semi-inducibility of the blue--blue--red path on four vertices

Jinghua Deng

For an $n$ -vertex graph $G$ , let $N (H_{3}, G)$ be the number of injective labeled copies of the red-blue path $H_{3}$ for which the two blue pairs are mapped to non-edges of $G$ and the…

math.CO2026

The exact generalized Turán number for $C_6$ in $C_8$-free graphs

Zian Chen, Jinghua Deng

For graphs $F$ and $H$ , let $\ex(n,F,H)$ denote the maximum number of copies of $F$ in an $n$ -vertex $H$ -free graph. Gerbner, Győri, Methuku and Vizer proved that $\ex(n,C_6,C_8)=Θ…

math.CO2026

Fixed-density profiles for the semi-induced 4-vertex star

Jinghua Deng, Jianfeng Hou

We study the fixed-density semi-inducibility profiles of the red-blue star $S_{2, 1}$ , which has one distinguished center, two red edges and one blue edge. For an $n$ -vertex graph $…

math.CO2026

Vertex-colored Turán theorems with applications in extremal hypergraph problems

Wanfang Chen, Jinghua Deng, Jianfeng Hou +2

Balogh, Clemen, and Lidický proved that the $ℓ_{2}$ -norm Turán problem for $K_{5}^{3}$ is asymptotically solved by the balanced bipartite construction, and they further conjectu…

The semi-inducibility of the blue--blue--red path on four vertices

The exact generalized Turán number for \(C_6\) in \(C_8\)-free graphs

Fixed-density profiles for the semi-induced 4-vertex star

Vertex-colored Turán theorems with applications in extremal hypergraph problems