Speaker：Matthew Burfitt (HIMIS)Time:September 16 (Wed), 2026, 2:30–3:30 pmLocation:HIMIS 7A1Title:On homology theories of digraphs and quivers and their computabilityAbstract:This talk will be presented with a general scientific audience in mind. No background in topology is required.
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
Speaker:Sergey Galkin (PUC-Rio)Time:September 9, 2026, 2:30–3:30 pmVenue:HIMIS 7A1Abstract:In the first 20–30 minutes of the talk, I will revisit my presentation at the NeurIPS 2025 MATH+AI workshop, with a broad audience in mind. I will then discuss further MATH+AI topics
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
Speaker:Ali Ghalavand (HIMIS)Time:June 3rd (Wed), 3 - 4pmLocation:HIMIS 7A1Title:Some Topics in Graph TheoryAbstract:This talk covers our recent solutions to several open problems involving metric dimensions (the smallest size of a resolving set), decycling numbers (the
Title:A p-adic interpolation of the Cogdell liftAbstract:The Cogdell lift is the analogue for Picard modular surfaces of the celebrated Hirzebruch-Zagier theorem. Roughly speaking, the lift takes a class in middle cohomology of a fixed modular surface, and lifts it to a Fourier ser
Speaker：Weiping Li (HKUST)Time:May 20th, 10:30-11:30amLocation:HIMIS 7A1Title:Instanton moduli spaces on the blowup surfaces and affine vertex algebrasAbstract: Vafa–Witten observed that Yoshioka’s blow-up formula for the Euler characteristics of rank 2 instantons on an algebraic surface coincide
Abstract:For an audience more familiar with mathematics than molecular biology, we will fist briefly introduce the key concepts. The human genome differs between individuals at millions of single-nucleotide variants, which influence the abundance (expression level) of proteins, the molecular p
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
Time: April 22nd, 10:30-11:30amLocation: 7A1Speaker: Alexander Grigor'yan (Universität Bielefeld)Title: Analysis on Riemannian manifolds and volume growthAbstract: This is a survey of the results relating the volume growth of a Riemannian manifold $M$ to various properties of elliptic and
Time:April 15th, 10:30-11:30am Location:HIMIS 7A1Speaker:Yu WangTitle:Quantum Advantage via Efficient Postprocessing on Qudit Classical Shadow TomographyAbstract: Many problems in quantum science can be formulated as estimating
【HIMISColloquium学术报告会】Speaker:LingfengLiTime: April8th,10:30-11:30amLocation: HIMIS7A1Title:NeuralnetwoksmethodsinscientificcomputingAbstract:Iwillgivesabriefoverviewo
HIMIS SeminarTitle：BSD conject