Speaker：Promit Kundu (ShanghaiTech University)Time：September 21, 2026, 3:00–4:00 pmTitle：Fixed-Point Loci of Moduli Spaces of Sheaves on Toric OrbifoldsAbstract：I will present a combinatorial description of torus-equivariant sheaves on smooth projective toric orbifolds and apply it to fixed loc
Geometry seminar - Surgeries on knots and tight contact structuresSpeaker:Shunyu Wan (Georgia Institute of Technology)Time: August 10, 3-4pmLocation: HIMIS 7A1Title: Surgeries on knots and tight contact structuresAbstract: The existence and nonexistence of tight contact structures on 3-manifol
Speaker:Zhen Gao (University of Augsburg)Time: June 16th (Tue), 3 - 4pmLocation:HIMIS 7A5Title: Koszul duality and Milnor fibresAbstract: A certain Koszul duality pattern in symplectic geometry around several types of Milnor fibres has been discovered by Lekili et al. In this talk, I will revi
RegularShockReflection-DiffractionProblemProf.WeiXiang,CityuniversityofHongKong(CityU)April30th,4:00-5:00pm;HIMIS7A1Wewilltalkaboutourrecentresultso
Speaker：王浩然（首都师范大学）Title:Homological branching for GL_2Abstract:Branching problem is a fundamental problem in representation theory. I willtalk about the branching problem for mod p representations of GL_2(F), where F is a padic field. This is a joint work in pr
HIMIS SeminarTitle：BSD conject
HIMIS SeminarTitleString-net models based on pivotal bicategoriesSpeakerProfessor Jürgen Fuchs(https://www.kau.se/en/researchers/jurgen-fuchs,Karlstad University,Karlstad, Sweden)AbstractThe string-net construction uses colored graphs embedded in surfaces to produc
Geometry workshop