-
Jun 07
2024
From rational to toric Fano varietiesTime: 15:30-16:30 / Venue: Jingzhai 105 (静斋105)/ Zoom Meeting ID: 262 865 5007 / Passcode: YMSC报告人:Joaquin Moraga (UCLA) -
May 31
2024
Contact loci of arcsTime: 15:30-16:30 / Venue: C548, Shuangqing Complex Building A(双清C548)/ Zoom Meeting ID: 262 865 5007 / Passcode: YMSC报告人:Nero Budur (KU Leuven) -
May 24
2024
On rationality of real conic bundle threefoldsTime: 15:30-16:30 / Venue: Jingzhai 105 (静斋105)/ Zoom Meeting ID: 262 865 5007 / Passcode: YMSC报告人:Lena Ji (University of Michigan)
-
May 23
2024
A Celebration of Fano Varieties and SingularitiesThe purpose of this workshop is to celebrate the final day of the Tsinghua seminar series on Fano varieties and singularities and related topics.Date: May 23rdZoom ID: 262 865 5007Passcode: YMSC1:30pm – 2:30pm Yu ZouTitle: Singularities on Fano fibrations: proof of remaining results3:00pm – 4:00pm Florin AmbroTitle: On toric Fano varieties.4:30pm – 5:30pm Caucher BirkarTitle: Singularities o...报告人:Yu Zou, Florin Ambro, Caucher Birkar -
Apr 04
2024
Current Developments in Mathematics and Physics 2024数学与物理发展前沿国际会议Organizer:Caucher Birkar, Shiu-Yuen Cheng, Kenji Fukaya, Tian-Jun Li, Kefeng Liu, Chiu-Chu Melissa Liu, Nicolai Reshetikhin, Mu-Tao Wang, Xiaokui Yang, Chenglong Yu报告人:
公开课
-
May 07
2024
Explicit birational geometry时间 Time:Tuesdays & Thurdays, 9:50-11:25 am, May 7-July 11,2024 / 地点 Venue:Lecture Hal B725, Shuangqing Complex Building A / 课程日期:2024-05-07~2024-07-11报告人:Florin Ambro (Institute of Mathematics of the Romanian Academy) -
Mar 01
2024
Birational Geometry IITime:Every Thursday 13:30-15:05 2023-2-23 ~ 6-8地点 Venue:West Stepping Calssroom报告人:Caucher Birkar -
Sep 15
2023
Birational Geometry ITime: Every Thur. 13:30-15:05 2021-9-13 ~ 12-31 / Venue:West Stepping Calssroom报告人:Caucher Birkar
-
Jun 04
2024
Sheaf stable pairs, Quot-schemes, and birational geometryIn this paper we build bridges between moduli theory of sheaf stable pairs on one hand and birational geometry on the other hand. We will in particular treat moduli of sheaf stable pairs on smooth projective curves in detail and present some calculations in low degrees. We will also outline problems in various directions.报告人:Caucher Birkar, Jia Jia, Artan Sheshmani -
Jun 03
2024
On the cone conjecture for certain pairs of dimension at most 4In this paper, by running MMP and considering the anti-canonical fibration, we prove the Morrison-Kawamata cone conjecture for klt Calabi-Yau pairs (X,Δ) such that dim X is at most 4, and the Iitaka dimension κ(X,−K_X) is at least dimX−2.报告人:Fulin Xu -
May 24
2024
Structures of ε-lc Calabi--Yau pairsWe study the structures of ϵ-lc Calabi--Yau pairs. We show that such pairs possess a finite cover that is isomorphic in codimension 1 with a fiber product of a Calabi--Yau variety and a rationally connected variety. Moreover, the degree of the cover depends only on ϵ and the dimension. As a corollary, we show that the index of 4-dimensional non-canonical Calabi--Yau variety is bounded. We also prove a boundedness result on polarized ϵ-lc Calabi--Yau pairs.报告人:Junpeng Jiao