Geometry Seminar - Abstracts


Wednesday 25 September 2019, 16:00-17:00 in HG02.802
Zhiyu Tian (Beijing International Center for Mathematical Research)
Separable rational connectedness in positive characteristic


Rationally connected varieties are higher dimensional analogues of rational surfaces, which share many of the properties of rational surfaces. However, in positive characteristic, one needs the notion of separable rational connectedness to avoid certain pathologies. I will report on a joint work with Jason Starr on characterising separable rational connnectedness, and if time permits, some applications for weak approximation.

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