{"id":482,"date":"2025-08-21T17:17:55","date_gmt":"2025-08-21T17:17:55","guid":{"rendered":"https:\/\/sites.rutgers.edu\/mathematics-colloquium\/?page_id=482"},"modified":"2026-01-06T00:34:45","modified_gmt":"2026-01-06T00:34:45","slug":"past-semesters","status":"publish","type":"page","link":"https:\/\/sites.rutgers.edu\/mathematics-colloquium\/past-semesters\/","title":{"rendered":"Past semesters"},"content":{"rendered":"

Spring 2025<\/a>, Fall 2024<\/a>, Spring 2024<\/a>, Fall 2023<\/a>, Spring 2023<\/a>, Fall 2022<\/a>, Fall 2021- Spring 2022<\/a> (scroll down on linked page), Fall 2020 – Spring 2021<\/a>, Fall 2019 – Spring 2020<\/a>, Fall 2018 – Spring 2019<\/a>, <\/p>\n

[Admin note: Eventually, I intend to paste previous semesters’ schedules below. For now, please use the links above if the semester is missing from below.]<\/em><\/p>\n

Schedule — Fall 2025<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Date<\/th>\nSpeaker<\/th>\nTitle<\/th>\n<\/tr>\n
Sep 17<\/td>\nMinghao Miao (Nanjing University \/ Rutgers New Brunswick)<\/td>\nThe Volume of K-Semistable Fano Manifolds<\/td>\n<\/tr>\n
Sep 24<\/td>\nNo colloquium<\/td>\n<\/td>\n<\/tr>\n
Oct 1<\/td>\nAlex He (Oklahoma)<\/td>\nPractical algorithms in 3-manifold topology<\/td>\n<\/tr>\n
Oct 8<\/td>\nGrace Garden (IMJ-PRG)<\/td>\nCharacter varieties and essential surfaces<\/td>\n<\/tr>\n
Oct 15<\/td>\nYikai Teng (Rutgers Newark)<\/td>\nKhovanov homology and exotic planes<\/td>\n<\/tr>\n
Oct 22<\/td>\nNo colloquium<\/td>\n<\/td>\n<\/tr>\n
Oct 27*<\/td>\nRobert Bryant (Duke)<\/td>\nA visit to the Finsler world   (*part of the Distinguished Lectures in Topology, Geometry, and Physics<\/a>)<\/em><\/td>\n<\/tr>\n
Oct 29<\/td>\nAo Sun (Lehigh)<\/td>\nSingular behavior of mean curvature flow<\/td>\n<\/tr>\n
Oct 31 *(10:30am, Zoom only – Zoom link<\/a>)<\/td>\nZhitong Su (Hunan Normal U.)<\/td>\nA decomposition lemma in convex integration via classical algebraic geometry<\/td>\n<\/tr>\n
Nov 5<\/td>\nHuai-Dong Cao (Lehigh)<\/td>\nHamilton-Ivey-type curvature pinching estimates of Ricci solitons<\/td>\n<\/tr>\n
Nov 12<\/td>\nCharlie Reid (Yale)<\/td>\nHigher Teichm\u00fcller theory, and not-so-simple closed curves<\/td>\n<\/tr>\n
*Nov 14, 10:30am @ New Brunswick, Hill 705<\/td>\n\nTam\u00e1s Darvas (Maryland)<\/td>\nA YTD correspondence for constant scalar curvature metrics   (*Part of New Brunswick’s Complex Analysis and Geometry Seminar<\/a>)<\/em><\/td>\n<\/tr>\n
Nov 19<\/td>\nErez Lapid (Weizmann)<\/td>\nSome new results and conjectures about representations of GL_n over a non-archimedean local field<\/a> (part 1)<\/td>\n<\/tr>\n
Nov 26<\/td>\nNo colloquium<\/td>\nHappy Thanksgiving!<\/td>\n<\/tr>\n
Dec 3<\/td>\nErez Lapid (Weizmann)<\/td>\nSome new results and conjectures about representations of GL_n over a non-archimedean local field<\/a> (part 2)<\/td>\n<\/tr>\n
Dec 10<\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/table>\n

September 17<\/strong>
\nMinghao Miao (Nanjing University \/ Rutgers New Brunswick)
\nThe Volume of K-Semistable Fano Manifolds<\/em><\/p>\n

In 2015, K. Fujita showed that for any n-dimensional K-semistable Fano manifold, the anti-canonical volume is always less than or equal to that of complex projective space (CP^n). In this talk, I will discuss my recent joint work with Chi Li on characterizing the second-largest volume. We prove that for any n-dimensional K-semistable Fano manifold X that is not isomorphic to CP\u207f, the volume is at most 2n^n, with the equality holds if and only if X is a smooth quadric hypersurface or CP^1 \u00d7 CP^{n-1}. This result applies, in particular, to all Fano manifolds admitting K\u00e4hler\u2013Einstein metrics. Our proof is based on a new connection between K-stability and minimal rational curves.<\/p>\n

 <\/p>\n

October 1<\/strong>
\nAlex He (Oklahoma State University)
\nPractical algorithms in 3-manifold topology<\/em><\/p>\n

For any fixed compact 3-manifold M, there are infinitely many ways to triangulate M. So given two 3-manifold triangulations, how can we algorithmically decide whether or not they triangulate the same 3-manifold? This is the 3-manifold homeomorphism problem, which is (to say the least) very hard. Nevertheless, we might hope that one day, we can eventually develop a practical algorithm for the homeomorphism problem (that is, an algorithm that is both simple enough to implement in software, and efficient enough that we can actually run the software). This talk will survey some work that has been done to build towards this long-term goal. Specifically, I will discuss some practical algorithms that have been developed to solve some simpler, but still fundamental, problems in low-dimensional topology, such as the problem of computing the prime factorisation of a knot.<\/p>\n

 <\/p>\n

October 8<\/strong>
\nGrace Garden (IMJ-PRG)
\nCharacter varieties and essential surfaces<\/em><\/p>\n

In the seminal work of Culler and Shalen (1983) a method is outlined to detect essential surfaces in a three-manifold by studying their SL(2,C)-character variety. The method underscores connections between the theory of incompressible surfaces in three-manifolds, splittings of fundamental groups, group actions on trees, and the geometry of representation varieties, and led to many developments in low-dimensional topology. In this talk, I will provide an overview of this theory and give intuition through examples. Where possible, I will also discuss recent work extending the theory to algebraically closed fields of arbitrary characteristic. This is joint work with Stephan Tillmann.<\/p>\n

 <\/p>\n

October 15<\/strong>
\nYikai Teng (Rutgers Newark)
\nKhovanov homology and exotic planes<\/em><\/p>\n

Since the 1980s, mathematicians have discovered uncountably many “exotic” embeddings of R2<\/sup> in R4<\/sup>, i.e., embeddings that are topologically but not smoothly isotopic to the standard xy-plane. However, until today, there have been no direct, computable invariants that could detect such exotic behavior (with prior results relying on indirect arguments). In this talk, we define the end Khovanov homology, which is the first known combinatorial invariant of properly embedded surfaces in R4<\/sup> up to ambient diffeomorphism. Moreover, we apply this invariant to detect new exotic planes, including the first known example of an exotic plane that is a Lagrangian submanifold of the standard symplectic R4<\/sup>.<\/p>\n

 <\/p>\n

October 29<\/strong>
\nAo Sun (Lehigh University)
\nSingular behavior of mean curvature flow<\/em><\/p>\n

Mean curvature flow describes how a surface evolves to reduce its area as quickly as possible. A central challenge in understanding this flow is the formation of singularities. In this talk, I will discuss recent progress on the singular behavior of mean curvature flow, with a focus on joint work with Zhihan Wang (Cornell) and Jinxin Xue (Tsinghua) on cylindrical singularities.<\/p>\n

 <\/p>\n

October 31<\/strong>
\nZhitong Su (Hunan Normal University)
\nA decomposition lemma in convex integration via classical algebraic geometry
\n<\/em><\/p>\n

We consider a problem of improving the regularity of flexible solutions of a nonlinear PDE, which can be viewed as a kind of linearization of the codimension one local isometric embedding equation in Nash-Kuiper Theorem.
\nOur approach is based on a decomposition lemma that separates part of the error term arising from convex integration into an elliptic system. The argument involves applications of Adams’ theorem on vector fields on spheres, and classical projective duality. Consequently, our improvement on the H\u00f6lder exponent of the solutions depends on the Radon-Hurwitz number, exhibiting an eightfold periodicity that reflects Bott periodicity. This is joint work with Weijun Zhang.<\/p>\n

 <\/p>\n

November 5<\/strong>
\nHuai-Dong Cao (Lehigh)
\nHamilton-Ivey-type curvature pinching estimates of Ricci solitons<\/em> <\/p>\n

A magic feature of the Ricci flow in three dimensions is the well-known Hamilton\u2013Ivey curvature pinching estimate. Roughly speaking, it asserts that when the curvature blows up along the 3D Ricci flow, the positive part blows up at a faster rate than (absolute value of) the negative part. As a consequence, all 3D shrinking or steady gradient Ricci solitons (or more generally, ancient solutions) arising as limits of parabolic blowups of the flow must have nonnegative sectional curvature. This is extremely powerful in the analysis of 3D Ricci flow singularity models, as it enables the effective use of the Li\u2013Yau\u2013Hamilton differential Harnack inequality and the geometry of non-negatively curved three-manifolds. <\/p>\n

In recent years, various generalizations of Hamilton\u2013Ivey curvature pinching have been developed for general shrinking and steady Ricci solitons, and more broadly, for ancient solutions, in both dimension three and higher dimensions. In this talk, I will discuss some new progress on Hamilton\u2013Ivey-type curvature pinching for gradient Ricci solitons, based on my joint work with Junming Xie. <\/p>\n

 <\/p>\n

November 12<\/strong>
\nCharlie Reid (Yale)
\nHigher Teichm\u00fcller theory, and not-so-simple closed curves<\/em> <\/p>\n

A hyperbolic structure on a surface is captured by a representation of the fundamental group into PSL(2,R). Higher rank Teichm\u00fcller theory aims to go beyond hyperbolic geometry by studying representations into bigger lie groups, for instance PSL(n,R). I will discuss a “higher” version of one piece of hyperbolic geometry–Thurston’s compactification of Teichm\u00fcller space. Boundary points of this compactification are measured laminations, measure-theoretic objects generalizing simple closed curves. I will discuss compactifications of certain higher Teichm\u00fcller spaces where we will see closed curves with more intricate restrictions on self-intersection appearing in the boundary.<\/p>\n

 <\/p>\n

Bonus: November 14 (at New Brunswick)<\/strong>
\nTam\u00e1s Darvas (University of Maryland)
\nA YTD correspondence for constant scalar curvature metrics
\n<\/em><\/p>\n

Given a compact K\u00e4hler manifold, to better understand Mabuchi’s K energy we introduce a family of K^beta energies, whose favorable properties are similar to those of the Ding energy from the Fano case. The construction uses Berman’s transcendental quantization, and we show that the slope of the K^beta energies along test configurations can be computed using intersection theory. With these ingredients in place we provide a uniform Yau-Tian-Donaldson correspondence that characterizes the existence of a unique constant scalar curvature K\u00e4hler metric using test configurations. Combining our techniques with the non-Archimedean approach to K-stability pioneered by Boucksom-Jonsson, we show that the properness of the classical energy can be tested by checking its slope along a distinguished subclass of Li-type models, called log discrepancy models, thus yielding another G-uniform Yau–Tian–Donaldson correspondence. (Joint with Kewei Zhang)<\/p>\n

 <\/p>\n

November 19 (part 1) & December 3 (part 2)<\/strong>
\nErez Lapid (Weizmann Institute of Science)
\nSome new results and conjectures about representations of GL_n over a non-archimedean local field
\n<\/em><\/p>\n

The seminal work of Joseph Bernstein and Andrei Zelevinsky in the 1970s on representation theory of GL_n over a non-archimedean local field culminated in Zelevinsky’s classification of the irreducible ones in terms of mysterious objects and seemingly innocuous combinatorial objects. The latter have rich geometric structure and show up in other contexts of representation theory such as Lustzig’s canonical bases.<\/p>\n

In my talks I will present recent progress on understanding the composition series, and in particular the reducibility, of parabolic induction of representations of general linear groups. The study leads to new geometric constructions in the context of Lusztig’s nilpotent varieties and new relations to classical combinatorial constructions such as the RSK correspondence. I will strive to keep the talks self-contained and logically independent of each other.<\/p>\n

Based on joint works with Alberto Minguez, Rami Aizenbud and Max Gurevich.<\/p>\n

Schedule — Spring 2025<\/h2>\n\n\n\n\n\n <\/colgroup>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Date<\/th>\nSpeaker<\/th>\nTitle<\/th>\n<\/tr>\n
Jan 29<\/td>\nNo talk<\/td>\n<\/td>\n<\/tr>\n
Feb 5<\/td>\nNo talk<\/td>\n<\/td>\n<\/tr>\n
Feb 12<\/td>\nNo talk<\/td>\n<\/td>\n<\/tr>\n
Feb 19<\/td>\nFederico Ardila (San Francisco State)<\/td>\nInequalities for trees and matroids<\/td>\n<\/tr>\n
Feb 26<\/td>\nNo talk<\/td>\n<\/td>\n<\/tr>\n
Mar 5<\/td>\nZhaolin Li (University of Minnesota)<\/td>\nBeyond Endoscopy: Standard L-functions of GL(2)<\/td>\n<\/tr>\n
Mar 12<\/td>\nBotong Wang (University of Wisconsin)<\/td>\nHomology classes of surfaces in (P1<\/sup>)4<\/sup><\/td>\n<\/tr>\n
Mar 19<\/td>\nNo talk<\/td>\nSpring break<\/strong><\/td>\n<\/tr>\n
Mar 26<\/td>\nJie Gao (Rutgers NB)<\/td>\nDiscrete Ricci flow and Applications on Graph Analysis<\/td>\n<\/tr>\n
Mar 31 (Monday)<\/td>\nAlejandro H. Morales (Universit\u00e9 du Qu\u00e9bec \u00e0 Montr\u00e9al)<\/td>\nEnumerating factorizations: from the symmetric group to Hecke algebras<\/td>\n<\/tr>\n
Apr 2<\/td>\nKasia Jankiewicz (UC Santa Cruz)<\/td>\nApproximating Artin groups by their finite quotients<\/td>\n<\/tr>\n
Apr 9<\/td>\nGriffin Wang (IAS)<\/td>\nGeometrization of the Jacquet-Rallis Fundamental Lemma for Spherical Hecke Algebras<\/td>\n<\/tr>\n
Apr 16<\/td>\nChi Li (Rutgers NB)<\/td>\nTwo uniqueness results in Kahler geometry<\/td>\n<\/tr>\n
Apr 23<\/td>\nGongxiang Liu (Nanjing University)<\/td>\nOn the classification of graded pointed coquasi-Hopf algebras over finite abelian groups.<\/td>\n<\/tr>\n
Apr 30<\/td>\nZhiyu Zhang (Standford)<\/td>\n<\/td>\n<\/tr>\n<\/table>\n

 
\n 
\n <\/p>\n

Schedule — Fall 2024<\/h2>\n\n\n\n\n\n <\/colgroup>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Date<\/th>\nSpeaker<\/th>\nTitle<\/th>\n<\/tr>\n
Sep 11<\/td>\nBaiqing Zhu
Columbia University<\/em><\/td>\n		Intersection of Hecke correspondences on modular curves<\/td>\n<\/tr>\n
Sep 18<\/td>\nTBA<\/td>\nTBA<\/td>\n<\/tr>\n
Sep 25<\/td>\nQiao He
Columbia University<\/em><\/td>\n		Kudla\u2013Rapoport conjecture at bad reduction primes<\/td>\n<\/tr>\n
Oct 2<\/td>\nTBA<\/td>\nTBA<\/td>\n<\/tr>\n
Oct 9<\/td>\nDiana Hubbard
CUNY<\/em><\/td>\n		Twisting in mapping class groups<\/td>\n<\/tr>\n
Oct 16<\/td>\nYu-Shen Lin
Boston University<\/em><\/td>\n		Construction of Special Lagrangians in Collapsing Limits<\/td>\n<\/tr>\n
Oct 22
(Special date!)<\/small><\/td>\n		Junliang Shen
Yale University<\/em><\/td>\n		The D-equivalence conjecture and hyper-K\u00e4hler geometry<\/td>\n<\/tr>\n
Oct 30<\/td>\nJunyan Zhao
University of Maryland<\/em><\/td>\n		Degree of curves and measures of irrationality<\/td>\n<\/tr>\n
Nov 4<\/td>\nKate Petersen
University of Minnesota\u2013Duluth<\/em><\/td>\n		Please check https:\/\/sites.rutgers.edu\/dltg\/lectures\/<\/a> for more details<\/td>\n<\/tr>\n
Nov 6<\/td>\nCaleb Suan
The University of British Columbia<\/em><\/td>\n		Long-Time Existence of the Anomaly Flow<\/td>\n<\/tr>\n
Nov 13<\/td>\nWeixiao Lu
MIT<\/em><\/td>\n		TBA<\/td>\n<\/tr>\n
Nov 18<\/td>\nMarina Ville
University of Tours, France<\/em><\/td>\n		Please check https:\/\/sites.rutgers.edu\/dltg\/lectures\/<\/a> for more details<\/td>\n<\/tr>\n
Nov 20<\/td>\nTBA<\/td>\nTBA<\/td>\n<\/tr>\n
Nov 27<\/td>\nThanksgiving!<\/td>\nNo talk<\/td>\n<\/tr>\n
Dec 4<\/td>\nAlina Vdovina
CUNY<\/em><\/td>\n		Knots, surfaces and complexity<\/td>\n<\/tr>\n
Dec 11<\/td>\nZhilin Luo
University of Chicago<\/em><\/td>\n		Nonabelian Fourier analysis in Langlands program<\/td>\n<\/tr>\n<\/table>\n

 
\n 
\n <\/p>\n

Schedule — Spring 2023<\/h2>\n\n\n\n\n\n <\/colgroup>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Date<\/th>\nSpeaker<\/th>\nTitle<\/th>\n<\/tr>\n
Jan 25<\/td>\nChongying Dong (UC Santa Cruz) \u2014 Virtual meeting<\/em><\/td>\nMonstrous moonshine and vertex operator algebras<\/td>\n<\/tr>\n
Feb 1<\/td>\nZahi Hazan (Tel Aviv University)<\/td>\nAn Identity Relating Eisenstein Series on General Linear Groups<\/td>\n<\/tr>\n
Feb 8<\/td>\nNo talk<\/td>\n<\/td>\n<\/tr>\n
Feb 15<\/td>\n1st talk: Dihua Jiang (University of Minnesota)
2nd talk: Ralph Kaufmann (Purdue University)<\/td>\n		Arithmetic Wavefront Set, Local Descent, and Local Gan\u2013Gross\u2013Prasad Conjecture
Algebra and geometry from graphs<\/td>\n<\/tr>\n
Feb 22<\/td>\nZiming Shi (Rutgers\u2013NB)
Ziquan Zhuang (JHU)<\/td>\n		1\/2 estimate for global Newlander\u2013Nirenberg theorem on strongly pseudoconvex domains
Stability and boundedness of klt singularities<\/td>\n<\/tr>\n
Mar 1<\/td>\nJialiang Zou (University of Michigan)<\/td>\nArthur\u2019s multiplicity formula and local Langlands correspondence for (special) orthogonal and unitary groups via theta lifts<\/td>\n<\/tr>\n
Mar 8<\/td>\n1st talk: Luen-Chau Li (PSU)
2nd talk: Ping Xu (PSU)<\/td>\n		On infinite periodic band matrices and the periodic Toda flow
Introduction to deformation quantization<\/td>\n<\/tr>\n
Mar 15<\/td>\nNo talk (Spring break)<\/td>\n<\/td>\n<\/tr>\n
Mar 22<\/td>\nHuajie Li (JHU)<\/td>\nIntroduction to the relative trace formulae of Guo\u2013Jacquet<\/td>\n<\/tr>\n
Mar 29<\/td>\nHannah Schwartz (Princeton) \u2014 Cancelled<\/em><\/td>\nGluck Twisting 2-Spheres<\/td>\n<\/tr>\n
Apr 5<\/td>\nIan Morrison (Fordham)<\/td>\nThe poset of $0$-$1$ factorizations of $\\frac{1-x^n}{1-x}$<\/td>\n<\/tr>\n
Apr 12<\/td>\nStephan Tillmann (The University of Sydney)<\/td>\nThree angles on tropical geometry<\/td>\n<\/tr>\n
Apr 19<\/td>\nMark McLean (Stony Brook)<\/td>\nFloer Cohomology and Arc Spaces<\/td>\n<\/tr>\n
Apr 26<\/td>\nAnna Wienhard (Mathematisches Institut, Ruprecht-Karls-Universit\u00e4t Heidelberg)<\/td>\nPositivity, representations, and non-commutative hyperbolic geometry<\/td>\n<\/tr>\n
May 3<\/td>\nYanwen Luo (Rutgers\u2013NB)<\/td>\nDrawing and Morphing Graphs on Surfaces<\/td>\n<\/tr>\n<\/table>\n

 
\n 
\n <\/p>\n

Schedule — Fall 2021 \u2013 Spring 2022<\/h2>\n\n\n\n\n\n <\/colgroup>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Date<\/th>\nSpeaker<\/th>\nTitle<\/th>\n<\/tr>\n
Sep 15<\/td>\nNo talk<\/td>\n<\/td>\n<\/tr>\n
Sep 22<\/td>\nNo talk<\/td>\n<\/td>\n<\/tr>\n
Sep 29<\/td>\nWenshuai Jiang (Zhejiang University)<\/td>\nGromov-Hausdorff limit of manifolds and some applications<\/td>\n<\/tr>\n
Oct 6<\/td>\nKewei Zhang (Beijing Normal University)<\/td>\nMoser-Trudinger type inequalities on compact Kahler manifolds<\/td>\n<\/tr>\n
Oct 13<\/td>\nFreid Tong (Harvard)<\/td>\nUniform estimates for complex Monge-Ampere and fully nonlinear equations<\/td>\n<\/tr>\n
Oct 15<\/td>\nYiannis Sakellaridis (Johns Hopkins University)<\/td>\nPeriods, L-functions, and a duality of Hamiltonian spaces<\/td>\n<\/tr>\n
Oct 20<\/td>\nNaihuan Jing (NC State University)<\/td>\nYangians and their presentations<\/td>\n<\/tr>\n
Oct 27<\/td>\nNo talk<\/td>\n<\/td>\n<\/tr>\n
Nov 3<\/td>\nNo talk<\/td>\n<\/td>\n<\/tr>\n
Nov 10<\/td>\nSpencer Leslie (Duke University)<\/td>\nPeriods of automorphic forms and endoscopy<\/td>\n<\/tr>\n
Nov 17<\/td>\nQingyuan Jiang (The University of Edinburgh)<\/td>\nDerived projectivizations of two-term complexes<\/td>\n<\/tr>\n
Nov 24<\/td>\nNo Talk. Happy Thanksgiving!<\/td>\n<\/td>\n<\/tr>\n
Dec 1<\/td>\nChengming Bai (Nankai University)<\/td>\nAn introduction to pre-Lie algebras with some recent progress<\/td>\n<\/tr>\n
Dec 8<\/td>\nSylvie Paycha (Universit\u00e4t Potsdam)<\/td>\nFrom principal bundles with connections to groupoids with direct connections: the case of jet groupoids<\/td>\n<\/tr>\n
Jan 18<\/td>\nKyle Hayden (Columbia University)<\/td>\nBraids and badly behaved surfaces<\/td>\n<\/tr>\n
Jan 20<\/td>\nChristine Ruey Shan Lee (University of South Alabama)<\/td>\nQuantum knot invariants and low-dimensional topology<\/td>\n<\/tr>\n
Jan 24<\/td>\nVesselin Dimitrov (University of Toronto)<\/td>\nIs there a smallest algebraic integer?<\/td>\n<\/tr>\n
Jan 25<\/td>\nYing Anna Pun (University of Virginia)<\/td>\nSymmetric functions \u2014 a gem in algebraic combinatorics<\/td>\n<\/tr>\n
Jan 27<\/td>\nAndrea Tamburelli (Rice University)<\/td>\nThurston boundary for higher Teichmuller spaces<\/td>\n<\/tr>\n
Feb 16<\/td>\nMarc Lackenby (University of Oxford)<\/td>\nRecognising the unknot<\/td>\n<\/tr>\n
Feb 23<\/td>\nBin Zhang (Sichuan University)<\/td>\nRenormalization of Feynman amplitudes on Riemannian manifolds<\/td>\n<\/tr>\n
Mar 2<\/td>\nWen-Wei Li (Peking University)<\/td>\nDifferential operators in representation theory for Lie groups<\/td>\n<\/tr>\n
Mar 9<\/td>\nRadmila Sazdanovic (NC State University)<\/td>\nLinearizations of category of 2D cobordisms and generalizations of the Deligne category<\/td>\n<\/tr>\n
Mar 16<\/td>\nNo talk. Happy spring break!<\/td>\n<\/td>\n<\/tr>\n
Mar 23<\/td>\nBoyu Zhang (Princeton University)<\/td>\nThe smooth closing lemma for area-preserving surface diffeomorphisms<\/td>\n<\/tr>\n
Mar 30<\/td>\nAo Sun (University of Chicago)<\/td>\nDynamics of Singularities of Mean Curvature Flow<\/td>\n<\/tr>\n
Apr 6<\/td>\nBin Xu (Tsinghua University)<\/td>\nABV-packets for unramified principal series of p-adic general linear groups and Lusztig\u2019s semicanonical bases<\/td>\n<\/tr>\n
Apr 13<\/td>\nXin Fu (UC Irvine)<\/td>\nNeck region in geometric problems<\/td>\n<\/tr>\n
Apr 20<\/td>\nChao-Ming Lin (UC Irvine)<\/td>\nThe deformed Hermitian\u2014Yang\u2014Mills equation, the Positivstellensatz, and the Solvability<\/td>\n<\/tr>\n
Apr 27<\/td>\nWilliam Goldman (University of Maryland)<\/td>\nDynamics and the classification of geometric structures on surfaces<\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

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