HOẠT ĐỘNG TRONG TUẦN

An application of a Bogomolov-Gieseker type inequality to counting invariants
Speaker: Soheyla Feyzbakhsh (Imperial College)

Time: 15h15, 19/2/2021

Abstract: In this talk, I will work on a smooth projective threefold X which satisfies the Bogomolov-Gieseker conjecture of Bayer-Macr`i-Toda, such as the projective space P^3 or the quintic threefold. I will show certain moduli spaces of 2-dimensional torsion sheaves on X are smooth bundles over Hilbert schemes of ideal sheaves of curves and points in X. When X is Calabi-Yau this gives a simple wall crossing formula expressing curve counts (and so ultimately Gromov-Witten invariants) in terms of counts of D4-D2-D0 branes. This is joint work with Richard Thomas.

Join Zoom Meeting:

https://zoom.us/j/94787937855?pwd=c2FiS3VGaGowUGRpcTVoenJqZW8rQT09

Meeting ID: 947 8793 7855

Passcode: 323472

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

06/12/22, Hội nghị, hội thảo:
Winter School on Mathematical Models and Dynamical Systems
16/12/22, Bài giảng viện:
Arational blowdown surgery on 4-manifolds
19/12/22, Hội nghị, hội thảo:
Một số vấn đề trong hình học và tô pô
08/08/23, Hội nghị, hội thảo:
Đại hội Toán học Việt Nam lần thứ X

Công bố khoa học mới