Deformations of F-pure and F-regular singularities
Shunsuke Takagi (University of Tokyo)
Abstract: F-regular and F-pure singularities are singularities in positive characteristic defined in terms of Frobenius splitting properties. Ma and Schwede recently proved that a normal Q-Gorenstein complex variety has log terminal singularities if its reduction modulo p has F-regular singularities for a single prime p. I will discuss the analog of their result for log canonical singularities. I will also explain how F-regular singularities behave under equal and mixed characteristic deformations. This talk is based on joint work with Kenta Sato.
algebraic geometry
Audience: researchers in the topic
ZAG (Zoom Algebraic Geometry) seminar
Series comments: Description: ZAG seminar
The seminar takes place on Tuesdays and Thursdays via Zoom. Zoom passwords are given via mailing list on Fridays. To join the mailing list go to the website.
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Times vary to accommodate speakers time zones but times will be announced in GMT time.
| Organizers: | Jesus Martinez Garcia*, Ivan Cheltsov*, Jungkai Chen, Jérémy Blanc, Ernesto Lupercio, Yuji Odaka, Zsolt Patakfalvi, Julius Ross, Cristiano Spotti, Chenyang Xu |
| *contact for this listing |