题目：On Numerically Trivial Automorphisms of Threefolds of General Type

报告人：刘文飞 教授 (厦门大学)

地点：腾讯会议室

时间：2021年12月17日（星期五） 8:30-9:30

摘要: In studying automorphism groups of projective varieties X, it is a basic problem to understand its induced action on the cohomology groups, say with rational coefficients. We call an automorphism σ∈Aut(X) numerically trivial, if it induces the trivial action on H^* (X,Q). For surfaces (and curves) of general type, the group Aut_Q (X) of numerically trivial automorphisms is uniformly bounded. In dimension 3, ZHAO Hang found examples of threefolds of general type with terminal singularities whose Aut_Q (X) can be arbitrarily large. In this talk, I report on a joint work with JIANG Zhi and ZHAO Hang, establishing the uniform boundedness of Aut_Q (X) for some classes of smooth threefolds of general type, such as those with maximal Albanese dimension or with Gorenstein minimal models.

腾讯会议：383-5163-6649

会议密码：202112

会议链接：https://meeting.tencent.com/dm/7x2K1cFJsUpl

欢迎各位参加！