学术报告:Flag-transitive symmetric 2-designs of prime order

报告人:周胜林教授(华南理工大学)
报告时间:2023年6月10日(星期六) 下午14:00-16:00
报告地点:数学与信息学院201教室

报告摘要:In this talk, I will introduce a new result on a class of symmetric 2-designs which is regarded as a natural generalization of the projective planes in terms of parameters. Let $\mathcal D$ be a symmetric $2$-$(v,k,\lambda)$ designs, where $\lambda>1$ and the order $n=k-\lambda$ of $\mathcal D$ is a prime number. We show that if $G\leq Aut({\mathecal D})$ is flag-transitive then $G$ is point-primitive, and it is of affine or almost simple type. This is a joint work with Dr. Ziwei Lu.

报告人简介:华南理工大学数学学院教授,博士生导师。主要从事有限群与组合设计方面的研究,2007年入选华南理工大学百人计划“杰出青年教师”,2013年入选广东省高校“千百十工程”省级培养对象,在J.Combin.Theory Series A, Europ.J. Combin.,Discrete Math., Designs Codes and Cryptography等学术期刊上发表科研论文80余篇,主持过多项国家省部级自然科学基金项目。

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