Academy of Mathematics and Systems Science, CAS
Colloquia & Seminars

Speaker:	方汉隆研究员,北京大学
Inviter:	谢松晏
Title:	Canonical blow-ups of grassmannians
Language:	Chinese
Time & Venue:	2024.01.17 14:00-15:00 晨兴110
Abstract:	We give a linear algebraic construction of the Lafforgue spaces associated to the Grassmannians G(2,n) by blowing up certain explicitly defined monomial ideals, which sharpens and generalizes a result of Faltings. As an application, we provide a family of homogeneous varieties with high complexity and with nice compactifications, which exhibits the notion of homeward compactification introduced before in a more general non-spherical setting. This is joint work with Mingyi Zhang.