Chunkai Xu

About

I am Chunkai Xu(许淳楷). I am a second year Ph.D. student supervised by Prof. Chunyi LiLink opens in a new window. Currently I work in algebraic geometry, with special interest in Derived categories, Bridgeland stability conditions and related geometries.

Email me at: Chunkai dot Xu at warwick dot ac dot uk

Background

• 2018-2022	B.A. in Mathematics	Beijing Normal University

• 2022-2024	Academy of Mathematics and System Science, Chinese Academy of Science, Supervisor: Wenhao Ou

Preprint

1. (joint with Sunny Sood, and an appendix by Marco Schlichting) On the Hermitian K-theory of Grassmannians. (arXivLink opens in a new window, submitted)
2. Stronger Bogomolov--Gieseker type inequality on quintic threefold. (arXivLink opens in a new window, submitted)
3. Limit Bridgeland Stability conditions and Gieseker Stability, in preparation

Conferences

1. UK AG winter school, Lancaster University, 16-20/12/2024
2. Birational Geometry: from moduli to geography, Universität de Barcelona, 05-08/02/2025
3. Spring School: Group Actions and Symplectic Singularities, Lille, 02-06/06/2025
4. CIMPA school: Bridgeland Stability and Applications, Florianopolis, Brasil, 04-15/08/2025
5. BrAG meeting, Nottingham, 10-12/09/2025
6. Fano and Hyperkahler manifolds, Toulouse, 15-19/12/2025
7. Tour de Formosa, Taiwan, 12-16/01/2026
8. Homological Algebra in Algebraic Geometry and Representation Theory, Salerno, 02-06/03/2026
9. Stability conditions and related topics, Liverpool, 23-25/03/2026
10. 77th British Mathematical Colloquium, Cardiff, 30/03/2026- 02/04/2026
11. Algebraic curves: moduli and syzygies, Cetraro, 01-05/06/2026
12. RGAS Summer School "Mirror Symmetry and Homological Methods in Algebraic Geometry", Zaragoza, 08-12/06/2026
13. Oxford Algebraic Geometry Days, Oxford, 07-09/09/2026

Talks

1. Gepner-Type Stability Conditions, DOGS(Derived Obsessed Graduate Students, an online seminar), 11/11/2025

2. Stronger BG type inequality on quintic threefold, Algebraic Geometry Seminar at Liverpool, 23/04/2026

3. Bridgeland Stability Conditions: Constructions and Relations to Gieseker Stability, Junior Geometry Seminar at Cambridge, 15/05/2026

4. Bridgeland Stability Conditions: Constructions and Relations to Gieseker Stability, Junior Geometry Seminar at Imperial, 22/05/2026

5. Limit Bridgeland stability conditions and Gieseker stability, Academic Report at AMSS, 01/09/2026

6. Limit Bridgeland stability conditions and Gieseker stability, CALF at Oxford, 08/09/2026

Teaching

1. 2025-2026, Term 1, Teaching assistant for MA6E0 Lie GroupsLink opens in a new window
2. 2025-2026, Term 1, Supervisor for a group of Maths students