Analysis Seminar: Smoothing inequalities for corner-type averaging operators
Speaker: Fred (Yu-Hsiang) Lin, Purdue University
Past Events
Geometry & Topology Seminar: The period map for smooth 4-manifolds
Speaker: Chris Scaduto, University of Miami
Crow Hall, Room 206
Algebraic Geometry and Combinatorics Seminar: The geometry of algebras associated to hyperplane arrangements
Speaker: Matt Larson, Princeton University
Crow Hall, Room 204
Analysis Seminar: Some frame theory questions in the manifold setting
Speaker: Nirina Randrianarivony, Saint Louis University
Crow Hall, Room 204
Colloquium: p-adic strings and arithmetic
Speaker: An Huang, Brandeis University
Louderman Hall, Room 458
Algebraic Geometry and Combinatorics Seminar: Szego kernels and the Scorza map on moduli spaces of spin curves
Speaker: Elham Izadi, University of California San Diego
Cupples II Hall, Room L009
Analysis Seminar: Müntz-Szasz Approximation Theorems
Speaker: Nic Berkopec, Washington University in St. Louis
Crow Hall, Room 204
Senior Honors Thesis Presentation: Methods in Topological Data Analysis
Speaker: Matthew Giardinelli, Washington University in St. Louis
Rudolph Hall, Room 102
Senior Honors Thesis Presentation: Introduction to the Riemann-Roch Theorem
Speaker: William Gillanders, Washington University in St. Louis
Eads Hall, Room 216
Senior Honors Thesis Presentation: An Introduction to the Decomposition Theorem
Speaker: Andrew Parks, Washington University in St. Louis
Eads Hall, Room 215
Senior Honors Thesis Presentation: Measure concentration in complex projective space and quantum entanglement
Speaker: Zheyuan Wu, Washington University in St. Louis
Eads Hall, Room 115
Houston Kirk Colloquium: Nonabelian Hodge theory for Riemann surfaces and the P=W conjecture
Speaker: Davesh Maulik, Massachusetts Institute of Technology
Louderman Hall, Room 458
Senior Honors Thesis Presentation: Multiresolution Analysis for Singular Integrals: One-Parameter, Product, and Entangled Settings
Speaker: Luca Pryor, Washington University in St. Louis
Eads Hall, Room 215
Algebraic Geometry and Combinatorics Seminar: Expansions of chromatic quasisymmetric functions via the A_{q,t} algebra
Speaker: Sean Griffin, University of North Texas
Crow Hall, Room 204
Senior Honors Thesis Presentation: Introduction to Fourier Restriction Theory
Speaker: Maxine Silverstein, Washington University in St. Louis
Cupples II Hall, Room L015
Analysis Seminar: Hypersurfaces on which few harmonic functions vanish
Speaker: Josef Greilhuber, Stanford University
Crow Hall, Room 204
Geometry & Topology Seminar: The flow product and integrating algebroids
Speaker: Joel Villatoro, Indiana University Bloomington
Crow Hall, Room 206
Algebraic Geometry and Combinatorics Seminar: TBA
Speaker: Leo Herr, Virginia Polytechnic Institute and State University (Virginia Tech)
Crow Hall, Room 204
Analysis Seminar: Mandelbrot Cascade on a planar curve
Speaker: Donggeun Ryou, Indiana University
Crow Hall, Room 204
Spring Break - no classes
Geometry & Topology Seminar: Geometric structures on surfaces
Speaker: Ursula Hamenstädt, University of Bonn
Crow Hall, Room 206
Roever Colloquium: A tale on geometric structures
Speaker: Ursula Hamenstädt, University of Bonn
Louderman Hall, Room 458
Algebraic Geometry and Combinatorics Seminar: Springer fibers, Richardson varieties, and Schubert calculus
Speaker: Martha Precup, Washington University in St. Louis
Crow Hall, Room 204
Third Year Major Oral: How Geometric PDEs and Symplectic Geometry Meet?
Speaker: Ching-Chia Hsu, Washington University in St. Louis
Lopata Hall, Room 103
Professor Steven Frankel Presents at the A&S Research Innovation Showcase
Join us in supporting our faculty member, Steven Frankel, as he presents at this year's A&S Research Innovation Showcase!
Clark-Fox Forum, Hillman Hall
Analysis Seminar: The Dirichlet problem as the boundary of the Poisson problem.
Speaker: Bruno Poggi, University of Pittsburgh
Crow Hall, Room 204
Geometry & Topology Seminar: Adiabatic Limit and Analytic Torsion of Vector Bundles
Speaker: Debin Liu, University of California, Santa Barbara
Crow Hall, Room 206
Colloquium: Bad Student Matrix Products Using Singular Integrals
Speaker: José Conde Alonso, University of Madrid
Louderman Hall, Room 458
Third Year Major Oral: The Scalar Curvature Problem via Dirac Operators: From Closed Manifolds to Manifolds with Boundary
Speaker: Kuan Yang, Washington University in St. Louis
Crow Hall, Room 206
Analysis Seminar: Cancellative Sparse Domination
Speaker: José Conde Alonso, University of Madrid
Crow Hall, Room 204
Geometry & Topology Seminar: TBA
Speaker: Ryo Toyota, Texas A&M University
Crow Hall, Room 206
Algebraic Geometry and Combinatorics Seminar: Shioda’s Conjecture on Unirationality
Speaker: Benjamin Church, Stanford University
Crow Hall, Room 204
Analysis Seminar: From Well-Mixed to Networked Populations: Stability Gaps in Replicator Dynamics
Speaker: Jean Moraes, Federal University of Rio Grande do Sul
Crow Hall, Room 204
Loeb Lecture: A world from a sheet of paper
Speaker: Tadashi Tokieda, Stanford University
Brown Hall, Room 100
A Magic Show
Presenter: Tadashi Tokieda, Stanford University
Brown Hall, Room 100
Colloquium: Irrational ways of manufacturing numbers
Speaker: Tadashi Tokieda, Stanford University
Louderman Hall, Room 458
Analysis Seminar: Weighted and Unweighted estimates for the Bergman projection on planar domains
Speaker: Walton Green, Illinois State University
Crow Hall, Room 204
Taibleson Colloquium: Finding ellipses: Blaschke products and the numerical range
Speaker: Pam Gorkin, Bucknell University
Louderman Hall, Room 458
Analysis Seminar: Weighted Inequalities and the Testing Philosophy in Harmonic Analysis
Speaker: Troy Roberts, Washington University in St. Louis
Crow Hall, Room 204
Algebraic Geometry and Combinatorics Seminar: Algebraic cycles constructed from curves
Speaker: Wanlin Li, Vanderbilt University
Crow Hall, Room 204
Colloquium: Reductions of abelian varieties
Speaker: Wanlin Li, Vanderbilt University
Louderman Hall, Room 458
Colloquium: Projections of random Cantor sets
Speaker: Alan Chang, Washington University in St. Louis
Cupples I Hall, Room 199
Algebraic Geometry and Combinatorics Seminar: Plane partitions in quantum chemistry
Speaker: Abigail Price, University of Illinois Urbana-Champaign
Cupples I Hall, Room 199
Martin Luther King Jr. Day - no classes
First Day of Classes, Spring 2026
Mathematics Department: Holiday Potluck
Mark your calendars! The WashU Mathematics Department will host a Holiday Potluck on Wednesday, Decmber 10 at 12pm-3pm.
Cupples I Hall, Rooms 199 & 200
Reading Days and Exams - Fall 2025
Math Club: TBD
Cupples I Hall, Room 199
Algebraic Geometry and Combinatorics Seminar: Equivariant gamma-positivity of Chow rings of matroids
Speaker: Hsin-Chieh Liao, Washington University in St. Louis
Crow Hall, Room 206
Analysis Seminar: Harmonic extensions on ℤ × ℕ and a discrete Hilbert transform
Speaker: Ljupcho Petrov, Washington University in St. Louis
Lopata Hall, Room 103
Thanksgiving Break 2025 - no classes
Analysis Seminar: Gradients of single layer potentials for elliptic operators with coefficients of DMO-type and applications to elliptic measure
Speaker: Carmelo Puliatti, Universitat Autònoma de Barcelona
Lopata Hall, Room 103
Geometry & Topology Seminar: Marked boundary rigidity and Anosov extension
Speaker: Dong Chen, Indiana University Indianapolis
Duncker Hall, Room 101
Colloquium: Tropical geometry and curve counting
Speaker: Renzo Cavalieri, Colorado State University
Brown Hall, Room 118
Math Club: Panel Discussion on Graduate Programs in Math
Cupples I Hall, Room 199
Honors Thesis Presentation: Symplectic Geometry and Quantum Measurement
Speaker: Honglei Jiang, Washington University in St. Louis
Crow Hall, Room 205
Algebraic Geometry and Combinatorics Seminar: Two techniques for understanding the intersection theory of Hurwitz spaces of degree-3 covers
Speaker: Amy Li, University of Texas at Austin
Crow Hall, Room 206
Analysis Seminar: scalar and vector valued dyadic operators in the non-homogeneous setting
Speaker: Francesco D'Emilio, Washington University in St. Louis
Lopata Hall, Room 103
Geometry & Topology Seminar: Kähler-Einsten metric, K-stability and moduli of Fano varieties
Speaker: Chenyang Xu, Princeton University
Duncker Hall, Room 101
Roever Colloquium: Kähler-Einsten metric, K-stability and moduli of Fano varieties
Speaker: Chenyang Xu, Princeton University
Brown Hall, Room 118
Math Club: TBD
Crow Hall, Room 204
Algebraic Geometry and Combinatorics Seminar: Quasisymmetric and Coxeter flag varieties
Speaker: Lucas Gagnon, University of Southern California
Crow Hall, Room 206
Analysis Seminar: Nonlinear Projections and Quantitative Rectifiability
Speaker: Krystal Taylor, The Ohio State University
Lopata Hall, Room 103
Geometry & Topology Seminar: Domains of discontinuity for Anosov representations
Speaker: Daniele Alessandrini, Stevens Institute of Technology
Duncker Hall, Room 101
Colloquium: Tropical Algebra
Speaker: Kalina Mincheva, Tulane Unversity
Brown Hall, Room 118
Math Club: TBD
Cupples I Hall, Room 199
Algebraic Geometry and Combinatorics Seminar: Slicing correspondences with high degree hypersurfaces.
Speaker: Ishan Banerjee, The Ohio State University
Crow Hall, Room 206
Analysis Seminar: Attainability of the singular Wiener bound and leaf venation patterns
Speaker: Zhonggan Huang, University of Utah
Lopata Hall, Room 103
Colloquium: TBD
Speaker: Guofang Wei, University of California, Santa Barbara
Brown Hall, Room 118
Math Club: TBD
Cupples I Hall, Room 199
Algebraic Geometry and Combinatorics Seminar: Geometry and topology of universal compactified Jacobians
Speaker: Younghan Bae, University of Michigan
Crow Hall, Room 206
Analysis Seminar: Semi-algebraic discrepancy estimates for skew-shift sequences
Speaker: Matthew Powell, Georgia Institute of Technology
Lopata Hall, Room 103
Taibleson Colloquium: Quantum and classical low degree PAC learning, Harmonic analysis, and dimension-free Remez inequality
Speaker: Alexander Volberg, Michigan State University
Crow Hall, Room 204
Math Club: Magic Squares
Cupples I Hall, Room 199
Algebraic Geometry and Combinatorics Seminar: Homotopical combinatorics and equivariant derived algebraic geometry
Speaker: Kyle Ormsby, Reed College
Crow Hall, Room 206
Analysis Seminar: From Subrepresentation to Sobolev: New Insights
Speaker: Kabe Moen, The University of Alabama
Lopata Hall, Room 103
Geometry & Topology Seminar: The Diederich–Fornæss index and the ∂ ̄-Neumann problem
Speaker: Bingyuan Liu, The University of Texas Rio Grande Valley
Duncker Hall, Room 101
Algebraic Geometry and Combinatorics Seminar: Algebraic vector bundles of rank 2 over smooth affine fourfolds
Speaker: Morgan Opie, Northwestern University
Duncker Hall, Room 101
Colloquium: From knots to 4-manifolds
Speaker: Ciprian Manolescu, Stanford University
Brown Hall, Room 118
Math Club: Magic Squares
Crow Hall, Room 204
Algebraic Geometry and Combinatorics Seminar: Geometric and combinatorial connections between the Delta Theorem and the Rational Shuffle Theorem
Speaker: Maria Monks Gillespie, Colorado State University
Crow Hall, Room 206
Analysis Seminar: Tb Theorem for Singular Integral Operators in the Dunkl Setting
Speaker: Brandon Sweeting, Washington University in St. Louis
Lopata Hall, Room 103
Geometry & Topology Seminar: Reflections on Bubbles and Films
Speaker: Robert Kusner, University of Massachusetts Amherst
Duncker Hall, Room 101
Colloquium: The Arduous Path of AI Models to the Bedside
Speaker: Thomas Kannampallil, Washington University in St. Louis
Brown Hall, Room 118
Fall Break 2025 - no classes
Algebraic Geometry and Combinatorics Seminar: Singularities of Secant varieties
Speaker: Debaditya Raychaudhury, The University of Arizona
Crow Hall, Room 206
Analysis Seminar: Invariant metrics
Speaker: John McCarthy, Washington University in St. Louis
Lopata Hall, Room 103
Math Club: Organizational Meeting
Organizer: Silas Johnson
Cupples I Hall, Room 199
Algebraic Geometry and Combinatorics Seminar: Local inequalities for $cA_k$ singularities
Speaker: Erik Paemurru, Bulgarian Academy of Sciences, Sofia, Bulgaria
Cupples II Hall, Room L009
Analysis Seminar: Polynomials with no zeros on the unit ball
Speaker: Gregory Knese, Washington University in St. Louis
Lopata Hall, Room 103
Geometry & Topology Seminar: Expanding Ricci solitons asymptotic to cones with nonnegative scalar curvature
Speaker: Eric Chen, University of Illinois Urbana-Champaign
Duncker Hall, Room 101
Math Chat: Prof. John McCarthy
Speaker: John McCarthy, Department of Mathematics
Eads Hall, Room 103
Houston Kirk Colloquium: Incidence geometry and tiled surfaces
Speaker: Sergey Fomin, University of Michigan
Brown Hall, Room 118
Algebraic Geometry and Combinatorics Seminar: TBD
Speaker: Stephen Lacina, Truman State University
Crow Hall, Room 206
Analysis Seminar: Hyperbolic Analytic and Algebraic Curves
Speaker: Nic Berkopec, Washington University in St. Louis
Lopata Hall, Room 103
Geometry & Topology Seminar: Torsion Invariants for Hecke Correspondences on Compact Hyperbolic Spaces
Speaker: Yanli Song, Washington University in St. Louis
Duncker Hall, Room 101
Colloquium: Spectral Learning for Dynamical Systems
Speaker: Matthew Colbrook, University of Cambridge
Brown Hall, Room 118
Algebraic Geometry and Combinatorics Seminar: Tight pairs, Kumar's criterion, inversion arrangements, and Bruhat intervals in type A and beyond
Speaker: Alexander Woo, University of Idaho
Crow Hall, Room 206
Analysis Seminar: Critical sets of harmonic functions and Almgren's frequency function
Speaker: Ben Foster, Washington University in St. Louis
Lopata Hall, Room 103
Mathematics Department: Welcome BBQ
Mark your calendars! The WashU Mathematics Department will be hosting a Welcome BBQ, Saturday Sept 6th from 2–7 PM.
Colloquium: Transverse Spheres in Flag Manifolds
Speaker: Parker Evans, Washington University in St. Louis
Cupples I Hall, Room 199
Algebraic Geometry and Combinatorics Seminar: Free curves on Fano varieties
Speaker: Eric Riedl, University of Notre Dame
Cupples I Hall, Room 199
Labor Day 2025 - no classes
Algebraic Geometry and Combinatorics Seminar: d-elliptic loci and quasi-modular forms
Speaker: Carl Lian, Washington University in St. Louis
Cupples I Hall, Room 199
First Day of Classes, Fall 2025
Last Summer Class Session Ends - Summer 2025
Seminar: Two Tales on M_{0,5} and M_{0,6}
Speaker: John Alexander Cruz Morales, Universidad National de Colombia
Cupples I Hall, Room 115
Thesis Defense: Wavelet Representation of Singular Integral Operators
Speaker: Jeremy Cummings, Washington University in St. Louis
Cupples I Hall, Room 111
Independence Day Holiday 2025 - no classes
Seminar: Quasi-Representations of Discrete Groups
Speaker: Guoliang Yu, Texas A&M University
Cupples I Hall, Room 199
Memorial Day Holiday 2025 - no classes
Thesis Defense: Functional Equivariance and Backward Error Analysis
Speaker: Sanah Suri, Washington University in St. Louis
Crow Hall, Room 205
First Summer Class Session Begins - Summer 2025
Commencement 2025
Thesis Defense: The Witten Deformation and Proper Cocompact Lie Group Actions
Speaker: Hao Zhuang, Washington University in St. Louis
Cupples I Hall, Room 216
Thesis Defense: Paraproducts in Two Settings: Hankel Operators and Dyadic Paraproducts
Speaker: Ana Čolović, Washington University in St. Louis
Cupples I Hall, Room 218
Geometry & Topology Seminar: Singular Fibers in Families of Algebraic Curves
Speaker: Jeremy Van-Horn Morris, University of Arkansas
Crow Hall, Room 206
Colloquium: The Topology of Algebraic Singularities
Speaker: Jeremy Van-Horn Morris, University of Arkansas
Crow Hall, Room 205
Reading Days and Exams, Spring 2025
Last Day of Class, Spring 2025
Awards Ceremony, 2025
Cupples I, Rooms 199 + 200
Colloquium: 4/24/25
Speaker: Michael Hartz, Saarland University
Duncker Hall, Room 101
Third Year Major Oral: What do we know about nonregular Hessenberg varieties?
Speaker: Zijing Zhuang, Washington University in St. Louis
Busch Hall, Room 14
Combinatorics Seminar: Ehrhart polynomials of generalized permutohedra from A to B
Speaker: Warut Thawinrak, University of California Davis
Eads Hall, Room 203
Thesis Defense: Studies in Algebraic Cycles: Hodge Theory of Degenerations, Regulators, and Cluster Varieties
Speaker: RJ Acuña, Washington University in St. Louis
Cupples I Hall, Room 111
Geometry & Topology Seminar 4/18/25
Speaker: Jonathan Zung, MIT
Crow Hall, Room 206
Szego Seminar: 4/17/25
Speaker: Pooja Joshi, Washington University in St. Louis
Eads Hall, Room 116
Colloquium: Gross and Zagier’s work revisited
Speaker: Tonghai Yang, University of Wisconsin-Madison
Duncker Hall, Room 101
Harmonic Analysis Working Seminar: 4/16/25
Speaker: Brett Wick, Washington University in St. Louis
Crow Hall, Room 205
Combinatorics Seminar: An Erdos-Szekeres Permutation Game
Speaker: Lara Pudwell, Valparaiso University
Eads Hall, Room 203
K-multimagic squares and magic squares of k-th powers via the circle method
Speaker: Daniel Flores, Purdue University
Crow Hall, Room 205