Old and new on the de Rham-Witt complex IV. Liftings mod $p^2$ and the Nygaard filtration II
Prof. Luc Illusie
2019-09-25 11:00—12:00
N202
>报告人：Luc Illusie (Université Paris-Sud)
>题目：Old and new on the de Rham-Witt complex IV. Liftings mod $p^2$ and the Nygaard filtration II
>时间：2019年9月25日（周三）11:00—12:00
>地点：南楼202
>摘要：
>I will discuss some open problems arising from this new approach. In the second part, I will revisit liftings mod $p^2$ and decompositions of de Rham complexes ("Deligne-Illusie") in relation with a certain filtration on the de Rham-Witt complex.
