Jian-Bing Lu

activity

20242026

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2 papers · 1 filter

math.CO2025

Flag-transitive $2$ - $(v, k, λ)$ designs with $λ \geq (r, λ)^{2}$

Junchi Zhang, Jianbing Lu, Meizi Ou

This paper is devoted to the study of $2$ -designs with $λ \geq (r, λ)^{2}$ admitting a flag-transitive automorphism group $G$ . The group $G$ has been shown to be point-primitive of eith…

math.CO2025

Flag-transitive point-primitive quasi-symmetric $2$ -designs and exceptional groups of Lie type

Jianbing Lu

Let $D$ be a non-trivial quasi-symmetric $2$ -design with two block intersection numbers $x = 0$ and $2 \leq y \leq 10$ , and suppose that $G$ is an automorphism group of $\math…

Flag-transitive 2-(v,k,λ) designs with λ≥(r,λ)2

Flag-transitive point-primitive quasi-symmetric 2-designs and exceptional groups of Lie type

Flag-transitive $2$ - $(v, k, λ)$ designs with $λ \geq (r, λ)^{2}$

Flag-transitive point-primitive quasi-symmetric $2$ -designs and exceptional groups of Lie type