Bài giảng viện trong năm

Thời gian: 9h30, Thứ 6, ngày 30/10/2020

Địa điểm: Hội trường Tầng 2, Nhà A6, Viện Toán học

Tóm tắt: Purity in arithmetic algebraic geometry is the phenomenon of certain invariants of algebraic varieties being insensitive to removing closed subvarieties of sufficiently large codimension, the Hartogs' extension principle being the basic example. The most delicate case of such results is in mixed characteristic (0, p), in which a new approach based on perfectoid rings has recently been introduced. I will overview it and discuss the results that it has yielded so far.