中国科学院数学与系统科学研究院
数学研究所
数学科学全国重点实验室
代数几何研讨班
Speaker: Prof. Ivan Cheltsov（英国爱丁堡大学）
Inviter: 陈亦飞
Language: English
Title: G-birationally rigid cubic threefolds
Time&Venue: 2026年8月22日（星期六）10:00-11:00 南楼N913
Abstract: A Fano variety X equipped with an action of a group G is called G-birationally rigid if X is a G-Mori fibred space (over a point) and X is not G-birational to any other G-Mori fibre space. In this talk I will classify all pairs (X,G) consisting of a (possibly singular) cubic threefold X and a subgroup G of its automorphism group such that X is G-birationally rigid.