Seminar on Discrete Mathematics: Turán problem for graphs from geometric shapes

：刘鸿（韩国基础科学研究院）
：2023-06-02 10:00
：海韵园数理大楼天元会议室686报告厅

报告人：刘鸿（韩国基础科学研究院）

时  间：2023年6月2日上午10:00

地  点：海韵园数理大楼天元会议室686报告厅

内容摘要:

While Turán type problem is the most studied topic in extremal combinatorics, some of the most basic bipartite degenerate Turán problems remain elusive. In this talk, I will discuss some recent advancements on this topic and new results on bipartite graphs arising from geometric shapes and periodic tilings commonly found in nature, including even prisms, planar hexagonal tiling and quadrangulations of plane, cylinder and torus. This is joint work with Jun Gao, Oliver Janzer, and Zixiang Xu.

个人简介：

刘鸿，2015在伊利诺伊大学厄本那-香槟分校(UIUC)取得博士学位，师从József Balogh。后于2019年在华威大学(Warwick)取得终身教职，并获得英国科研创新未来领袖奖。2022年加入韩国基础科学研究院(IBS)任首席科学家，现是其极值及概率组合研究组(ECOPRO)的领头人。研究领域包括极值，概率组合，图论，离散几何，组合数论等。在J. Amer. Math. Soc., J. Euro. Math. Soc.，Proc. London Math. Soc.，J. London Math. Soc.， Proc. Amer. Math. Soc.，Forum of Mathematics, Sigma，J. Combin. Theory Ser. B，J. Combin. Theory Ser. A及Combinatorica等杂志发表多篇学术论文，并多次受邀在国际学术会议上做学术报告。

 

联系人：靳宇