HOẠT ĐỘNG TRONG TUẦN

Semiorthogonal decompositions for singular varieties
Speaker: Evgeny Shinder (University of Sheffield)

Time: 15h15, Friday, November 20, 2020

Abstract: I will explain a semiorthogonal decomposition for derived categories of singular projective varieties into derived categories of finite-dimensional algebras, due to Professor Kawamata, generalizing the concept of an exceptional collection in the smooth case. I will present known constructions of these for nodal curves (Burban), torsion-free toric surfaces (Karmazyn-Kuznetsov-Shinder) and two nodal threefolds (Kawamata). Finally, I will explain obstructions coming from the K_{-1} group, and how it translates to maximal nonfactoriality in the nodal threefold case. This is joint work with M. Kalck and N. Pavic.

Join Zoom Meeting:

https://us02web.zoom.us/j/8988559386?pwd=ZnRCTHhuVWp3RXpYaHY1dlEwTG5CUT09


Meeting ID:898 855 9386
Passcode: SODsingula

For general information of the AGEA seminar, please check out

https://sites.google.com/ncts.ntu.edu.tw/agea-seminar

or the mirror site

http://www.math.ntu.edu.tw/~jkchen/agea-seminar.html

Trở lại

31/10/22, Hội nghị, hội thảo:
International school on algebraic geometry and algebraic groups
08/08/23, Hội nghị, hội thảo:
Đại hội Toán học Việt Nam lần thứ X

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