In 2020/6---2020/12. I organized a seminar on the factorization algebra and the quantum field theory, you can find some notes here Link
In 2022/3 Keke Zhang and I are organizing a seminar on the 3d N=4 Coulomb branch, here is the detail for the seminar.
In 2022/3 Keyou Zeng and I are organizing a seminar on the chiral algebra, here is the detail for the seminar.
In 2023/9-2023/11 We are holding a seminar on the quantum cluster variety and quantum groups, see the homepage the link.