报告人：邱宇（清华大学）

邀请人：张宁

报告时间：2023年10月13日（星期五）10:00-12:00

报告地点：东三十一楼119室

报告题目：On cluster braid groups

报告摘要：We review the definition of cluster braid groups. In the Coxeter-Dynkin case, they are naturally isomorphic to the corresponding braid groups. In the surface, we give finite presentations w.r.t. quivers with potential and show that they are natrually isomorphic to braid twist groups. This is based on many (past/ongoing) collaborations, including the ones with Zhou Yu, Alastair King, Jon Woolf, Zhang Xiaoting, Han Zhe and He Ping (1407.0806, 1703.10053, 1805.00030, 2310.02871, 2310.02917).

报告人简介：邱宇，清华大学数学科学中心教授。研究方向为代数表示论与几何拓扑；着重研究Calabi-Yau/Fukaya范畴，稳定条件空间，辫子群和丛理论等。在Invent. Math., Math. Ann., Adv. Math., Compo. Math.等杂志发表论文十余篇，2016年获得国际代数表示论会议奖。