G-birationally rigid cubic threefolds

Speaker: Prof. Ivan Cheltsov，英国爱丁堡大学

Inviter: 陈亦飞

Title: G-birationally rigid cubic threefolds

Language: English

Time & Venue: 2026.08.22  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.