Choose Year:

### Algebraic Geometry Seminar: "Newton-Okounkov bodies of arrangement varieties"

Speaker: Joseph Cummings, University of Kentucky

### Combinatorics Seminar: "The canonical bijection between pipe dreams and bumpless pipe dreams"

Speaker: Daoji Huang, University of Minnesota

### Statistics and Data Science Seminar: "Depth separation in dimensionality reduction of nonlinear waves"

Speaker: Donsub Rim, Washington University in Saint Louis

### Algebraic Geometry Seminar: "Family Floer mirror and mirror symmetry for rank 2 cluster varieties"

Speaker: Mandy Cheung

### Colloquium: "Geometry and Topology of Wild Character Varieties"

Speaker: Tony Pantev, University of Pennsylvania

### Combinatorics Seminar: "Subdivisions of Shellable Complexes"

Speaker: Max Hlavacek, UC Berkeley

### Algebraic Geometry Seminar: "Full exceptional collection for anticanonical log del Pezzo surfaces"

Speaker: Franco Rota, University of Glasgow

### Statistics and Data Science Seminar: "A General Cross Validation Framework with Applications to Dyadic CART and Trend Filtering"

Speaker: Sabyasachi Chatterjee, University of Illinois Urbana-Champaign

### Geometry and Topology Seminar: TBA

Speaker: Chris Leininger, Rice University

### Analysis Seminar: "Monomial Operators"

Speaker: John McCarthy, Washington University in Saint Louis

### Combinatorics Seminar: "The polytope algebra of generalized permutahedra and the deformation cone of the type B permutahedron."

Speaker: Jose Bastidas, UQAM

### Algebraic Geometry Seminar: "Polynomiality of hyperelliptic Hodge integrals"

Speaker: Adam Afandi, University of Münster

### Statistics and Data Science Seminar: "Data-Informed Decision Making During the Covid-19 Pandemic"

Speaker: Lior Rennert, Clemson University

### Association for Women in Math: "Symmetry and simulation: the surprising mathematical depth of numerical ODEs"

Speaker: Ari Stern, Washington University in Saint Louis

### Geometry and Topology Seminar: "Immersed Lagrangians and low-dimensional topology"

Speaker: Tye Lidman, North Carolina State University

### Analysis Seminar: "Convergence of Spectral Triples"

Speaker: Frédéric Latrémolière, University of Denver

### Combinatorics Seminar: "Newell-Littlewood numbers"

Speaker: Gidon Orelowitz, UIUC

### Combinatorics Seminar: "The isomorphism problem for Schubert varieties."

Speaker: Edward Richmond, Oklahoma State University

### Statistics and Data Science Seminar: "On the Construction, Simulation, and Fitting of Second Order Forecastable Processes"

Speaker: Tucker McElroy, U.S. Census Bureau

### Algebraic Geometry Seminar: "Local normal forms of noncommutative functions"

Speaker: Michael Wemyss, Glasgow University

### Colloquium: "Random surfaces and random graphs"

Speaker: Alex Wright, University of Michigan

### Geometry and Topology Seminar: "A diffeological approach to solving the integration problem"

Speaker: Joel Villatoro, Washington University in Saint Louis

### Analysis Seminar: "Local boundedness and integrability of rational functions"

Speaker: Gregory Knese, Washington University in Saint Louis

### Third Year Candidacy Requirement/Combinatorics Seminar: "Hook-Partition Immanant Characters from Stanley-Stembridge Characters"

Speaker: Nathan Lesnevich, Washington University in Saint Louis

### Senior Honors Thesis Presentation: "The Prime Graphs of Some Classes of Finite Groups"

Speaker: David Shen, Washington University in Saint Louis

### Algebraic Geometry Seminar: "Newton-Okounkov bodies and measures of local positivity"

Speaker: Alex Küronya, Frankfurt University

### Statistics and Data Science Seminar: "Likelihood Inference for Possibly Non-Stationary Processes via Adaptive Over differencing"

Speaker: Maryclare Griffin, University of Massachusetts-Amherst

### Roever Lecture: "Knots and crossings"

Speaker: Tye Lidman, North Carolina State University

### Geometry and Topology Seminar: "Orientable maps and polynomial invariants of free-by-cyclic groups"

Speaker: Samuel Taylor, Temple University

### Combinatorics Seminar: "Almost k-covers of grids"

Speaker: Alexander Clifton, Emory University

### Third Year Candidacy Requirement: "Morse Theory and Witten's Perturbation"

Speaker: Hao Zhuang, Washington University in Saint Louis

### Senior Honors Thesis Presentation: "Implicit Regularization and Gradient Descent in Matrix Sensing"

Speaker: Aidan Kelley, Washington University in Saint Louis

### Statistics and Data Science Seminar: "Urban/Community Analytics and the Value of University/City Partnerships"

Katherine B. Ensor, Noah G. Harding Professor of Statistics at Rice University and President of the American Statistical Association

### Algebraic Geometry Seminar: "Multiplicity-free formulas for products of psi and omega classes on M_0,n-bar via degenerations"

Speaker: Maria Gillespie, Colorado State University

### Geometry and Topology Seminar: "Disk-like global Poincaré sections and symplectic embeddings"

Speaker: Oliver Edtmair, UC Berkeley

### Analysis Seminar: "Norm independence of cyclicity and invertible functions"

Speaker: Jeet Sampat, Washington University in Saint Louis

### Senior Honors Thesis Presentation: "Connections between cluster algebras and Grassmannians, a case study."

Speaker: Ryan Roach, Washington University in Saint Louis

### Geometry and Topology Seminar: "Annular link Floer homology and gl(1|1)"

Speaker: C.-M. Michael Wong, Dartmouth University

### PhD Thesis Defense: "Quantum curves and asymptotic Hodge theory"

Speaker: Soumya Sinha Babu, Washington University in Saint Louis

### Statistics and Data Science Seminar: "Asynchronous Changepoint Estimation for Spatially Correlated Functional Time Series"

Speaker: Bo Li, University of Illinois Urbana-Champaign

### PhD Thesis Defense: "Hodge theoretic completion of period maps"

Speaker: Haohua Deng, Washington University in Saint Louis

### Senior Honors Thesis Presentation: "Population Estimation Using Capture-Recapture Methods and its Applications in Rcapture"

Speaker: Sloane Mercer, Washington University in Saint Louis

### Colloquium: "Mirroring Towers: Fibration and Degeneration in Calabi-Yau Geometry"

Speaker: Charles Doran, University of Alberta

### Geometry and Topology Seminar: TBA

Speaker: Anna Parlak, Oxford University

### Combinatorics Seminar: "DIII Clan Combinatorics for the Orthogonal Grassmannian"

Speaker: Ozlem Ugurlu, Saint Louis University

### Analysis Seminar: "Function theory and $\ell^p$ spaces"

Speaker: Raymond Cheng, Old Dominion University

### Senior Honors Thesis Presentation: "Using Visual Field Data for Assessing Glaucoma Progression: a Comparative Analysis of Survival Prediction Models"

Speaker: Yuanchen Wu, Washington University in Saint Louis

### Senior Honors Thesis Presentation: "On the Study of Commutator Indicators for Finite Matrices"

Speaker: Zach Zhao, Washington University in Saint Louis

### Senior Honors Thesis Presentation: "The number of steps of the Hillman Grassl algorithm for plane partitions of bounded height and certain shapes."

Speaker: Riley Lundstrom, Washington University in Saint Louis

### Senior Honors Thesis Presentation: "What If She's Not That Fast: Investigating Caster Semenya's Impact on Forecasting Models"

Speaker: Aliya Schenck, Washington University in Saint Louis

### Senior Honors Thesis Presentation: "Cycles, Entropy, and Probability: Markov Chain Thermodynamics"

Speaker: Collin Szczepanski, Washington University in Saint Louis

### Algebraic Geometry Seminar: "Deformations of singular Fano and Calabi-Yau varieties"

Speaker: Radu Laza, Stony Brook University

### Statistics and Data Science Seminar: "Time Series Estimation of the Dynamic Effects of Disaster-Type Shocks"

Speaker: Richard Davis, Columbia University

### Senior Honors Thesis Presentation: "Parallel Penalized Quantile Regression Via ADMM"

Speaker: Steve Li, Washington University in Saint Louis

### PhD Thesis Defense: "Properties of Cyclic Functions"

Speaker: Jeet Sampat, Washington University in Saint Louis

### PhD Thesis Defense: "Bounding projective hypersurface singularities"

Speaker: Benjamin Castor, Washington University in Saint Louis

### Senior Honors Thesis Presentation: "Diffusion and Topology in Mixed Boundary Polygonal Billiard Systems"

Speaker: Jared Lieberman, Washington University in Saint Louis

### Senior Honors Thesis Presentation: "Bootstrap Estimation of Volatility Under Microstructure Noise"

Speaker: Leda Liang, Washington University in Saint Louis

### Geometry and Topology Seminar: "Naive symplectic capacities"

Speaker: Kyler Siegel, USC

### Analysis Seminar: "Multiresolution analysis, Zygmund dilations and weights"

Speaker: Henri Martikainen, Washington University in Saint Louis

### Combinatorics Seminar: "Combinatorial Species"

Speaker: Miguel Mendez, Universidad Antonio Nariño

### PhD Thesis Defense: "Some Problems in Reproducing Kernel Spaces"

Speaker: Christopher Felder, Washington University in Saint Louis

### PhD Thesis Defense: "A nonconforming finite element method for the 2D vector Laplacian"

Speaker: Mary Barker, Washington University in Saint Louis

### Statistics and Data Science Seminar: "Mitigating multiple descents: a general framework for model-agnostic risk monotonization"

Speaker: Alessandro Rinaldo, Carnegie Mellon University

### PhD Thesis Defense: "Classical and Quantum Markov Chains Derived from Billiard-like Systems"

Speaker: Joshua Covey, Washington University in Saint Louis

### Algebraic Geometry Seminar: "Spectral theory, quantum curves, and topological strings"

Speaker: Marcos Marino, University of Geneva

### PhD Thesis Defense: "Weighted Estimates for the Bergman and Szego Projections"

Speaker: Nathan Wagner, Washington University in Saint Louis

### Geometry and Topology Seminar: "Veering triangulations on Montesinos link complements"

Speaker: Chi Cheuk Tsang, UC Berkeley

### Third Year Major Oral: "L2 Inference of Change-Points for High-Dimensional Time Series"

Speaker: Jiaqi Li, Washington University in Saint Louis

### Analysis Seminar: "Positive type functions on groupoids and property (T)"

Speaker: Kenneth Corea, University of Hawaii

### Combinatorics Seminar: "Multiplying quantum Schubert polynomials using combinatorics"

Speaker: Laura Colmenarejo, NC State University

### Colloquium: "You Can Hear the Shape of a Billiard Table"

Speaker: Moon Duchin, Tufts University

### Loeb Lecture: Finding Fairness: What Does an Algorithm See?

Moon Duchin, professor of mathematics at Tufts University, will discuss how mathematical modeling and algorithmic decision-making can be used to track fairness in democratic systems.

### Algebraic Geometry Seminar: "Recent progress on Hodge loci"

Speaker: Bruno Klingler, Humboldt University, Berlin

### Senior Honors Thesis Presentation: "Dataset Evaluation for Data Trading Using Expected Loss and Homomorphic Encryption"

Speaker: Michael Joo, Washington University in Saint Louis

### Geometry and Topology Seminar: "The Baum-Connes assembly map for certain subgroups of Z2 ⋊ GL(2, Z)"

Speaker: Sanaz Pooya, Stockholm University

### Analysis Seminar: "An operator theoretical approach to some two-dimensional inverse problems"

Speaker: Elodie Pozzi

### Spring 2022 Undergraduate Research Symposium

Join us for the annual Spring Undergraduate Research Symposium, which will highlight the diverse range of impressive research projects completed by WashU undergraduates, including Senior researchers completing theses, capstones, and other culminating projects.

### Third Year Major Oral: “The Behavior of the Bandwidth Selector Based on Cross-Validation Function in the Kernel Estimate of the Realised Spot Volatility”

Speaker: Jincheng Pang, Washington University in Saint Louis

### Algebraic Geometry Seminar: "The complexity of higher Chow groups"

Speaker: Genival da Silva Jr., Eastern Illinois University

### Statistics and Data Science Seminar: "K sample Multiplier Bootstrap CLT with applications to High Dimensional MANOVA"

Speaker: Nilanjan Chakraborty, Michigan State University

### Geometry And Topology Seminar: "Floer cohomology for log symplectic surfaces"

Speaker: Charlotte Kirchoff-Lukat, MIT

### Combinatorics Seminar: "Geometric Vertex Decomposability and Toric Ideals of Graphs"

Speaker: Sergio Da Silva, McMaster University

### Analysis Seminar: "Cyclic Cohomology and Local Index Theory"

Speaker: Jesus Sanchez Jr., Penn State University

### Third Year Candidacy Requirement: "Minimal genus Seifert surfaces for Montesinos knots"

Speaker: Atzimba Martinez, Washington University in Saint Louis

### Algebraic Geometry Seminar: "Kodaira dimension of some moduli spaces of hyperkähler varieties"

Speaker: Laure Flapan, Michigan State University

### Statistics and Data Science Seminar: TBA

Speaker: Robert Lunde, University of Michigan

### Statistics and Data Science Seminar: "Modern Statistical Tools for Network Data: From Resampling to Conformal Prediction"

Speaker: Robert Lunde, University of Michigan

### Department Awards Ceremony

### Geometry and Topology Seminar: "Fixed-point-free pseudo-Anosovs and the cinquefoil"

Speaker: Ethan Farber, Boston College

### Algebraic Geometry Seminar: "Virtual Resolutions of Monomial Ideals"

Speaker: Jay Yang, McMaster University

### Algebraic Geometry Seminar: "Algebraic versus topological entropy for varieties over finite fields"

Speaker: Vasudevan Srinivas, Tata Institute of Fundamental Research

### Department of Mathematics and Statistics Open House

### Thesis Defense: "Contribution to Data Science: Time Series, Uncertainty Quantification and Applications"

Speaker: Dhrubajyoti Ghosh, Washington University in Saint Louis

### Statistics and Data Science Seminar: "Median bias, HulC, and valid inference"

Speaker: Arun Kumar Kuchibhotla, Carnegie Mellon University

### PhD Thesis Defense: "Geometry and Dynamics of Rolling Systems"

Speaker: Bowei Zhao, Washington University in Saint Louis

### PhD Thesis Defense: "Dealing with Dimensionality: Problems and Techniques in High-Dimensional Statistics"

Speaker: Cezareo Rodriguez, Washington University in Saint Louis

### PhD Thesis Defense: "Truncated Realized Variations of Lévy Models: Optimality, Debiasing, and Implementation Approaches."

Speaker: Yuchen Han, Washington University in Saint Louis

### PhD Thesis Defense: "Kernel Estimation of Spot Volatility and Its Application in Volatility Functional Estimation"

Speaker: Bei Wu, Washington University in Saint Louis

### Algebraic and Arithmetic Geometry Seminar: "Abelian varieties of prescribed order over finite fields"

Speaker: Wanlin Li, Washington University in Saint Louis

### Szego Seminar: "Chebotarëv's Density Theorem"

Speaker: John Naughton, Washington University in Saint Louis

### Math and Stats Department Fireside Chat

Hosts: Rachel Roberts and Cristina Sabando Alvarez, Washington University in Saint Louis

### Algebraic and Arithmetic Geometry Seminar: "The algebraic geometry of the Putman-Wieland conjecture"

Speaker: Aaron Landesman, Harvard University

### Analysis Seminar: "L2-boundedness of gradients of single layer potentials for elliptic operators with coefficients of Dini mean oscillation-type"

Speaker: Carmelo Puliatti, University of the Basque Country

### Szego Seminar: "Summer Internships for Math Grad Students: Internship Reports and Information Session"

Speaker: Luke Leisman, INMAS

### Statistics and Data Science Seminar: "Inferring Within-Subject Variances From Intensive Longitudinal Data"

Speaker: Hua Zhou, University of California-Los Angeles

### Algebraic & Arithmetic Geometry Seminar: "Reconciling mutations for Fano and cluster varieties"

Speaker: Ben Wormleighton, Washington University in Saint Louis

### Colloquium: "Orthogonal trace-sum maximization: applications, local algorithms, and global optimality"

Speaker: Hua Zhou, University of California-Los Angeles

### Analysis Seminar: "Mackey Analogy in Unitary Representation Theory and in Reduced Group C*-Algebras"

Speaker: Angel Roman, Washington University in Saint Louis

### Szego Seminar: "A topological proof of Kneser's Conjecture"

Speaker: Shibashis Mukhopadhyay, Washington University in Saint Louis

### Combinatorics Seminar: "Rational Ehrhart Theory"

Speaker: Matthias Beck, San Francisco State University

### Math and Stats Department Fireside Chat (Graduate Student Event)

Speaker: Brett Wick, Washington University in Saint Louis

### Statistics and Data Science Seminar: "Multi-component Matching Queues in Heavy Traffic"

Speaker: Bowen Xie, Washington University in Saint Louis

### Analysis Seminar: "Sobolev Regularity of the Truncated Beurling Transform"

Speaker: Walton Green, Washington University in Saint Louis

### Statistics and Data Science Seminar: "Confidence Intervals for the Number of Components in Factor Analysis and PCA via Subsampling"

Speaker: Chetkar Jha, Washington University in Saint Louis

### Algebraic & Arithmetic Geometry Seminar: "Sparsity of Integral Points on Moduli Spaces of Varieties"

Speaker: Brian Lawrence, University of Wisconsin--Madison

### Analysis Seminar: "The Dirichlet problem with Sobolev boundary data for the Laplace equation in rough domains"

Speaker: Mihalis Mourgoglou, University of the Basque Country

### Math and Stats Department Fireside Chat (Graduate Student Event)

Speaker: Wanlin Li, Washington University in Saint Louis

### Algebraic and Arithmetic Geometry Seminar: "A geometric proof of the classification of T-polygons."

Speaker: Wendelin Lutz, Massachusetts University

### Guido Weiss Memorial Conference On Harmonic Analysis

Hosted by the Department of Mathematics and Statistics

### Statistics and Data Science Seminar: "The convenient correspondence between k-mer-based metagenome distances and phylogenetically informed beta diversity measures"

Speaker: Julia Fukuyama, Indiana University-Bloomington

### Algebraic and Arithmetic Geometry Seminar: "Virtual Resolutions and the virtually Cohen--Macaulay property"

Speaker: Jay Yang, Washington University in Saint Louis

### Analysis Seminar: "Wasserstein distance and its application in quantum circuit complexity"

Speaker: Kaifeng Bu, Harvard University

### Szego Seminar: "Modulation Invariant Operators near $L^1$"

Speaker: Anastasios Fragkos, Washington University in Saint Louis

### Math and Stats Department Fireside Chat (Graduate Student Event)

Speaker: Donsub Rim, Washington University in Saint Louis

### The Mathematics and Statistics Department Presents a Special Seminar, "Algorithms of Oppression: A conversation with Safiya U. Noble"

### Colloquium: "Ordinary Primes for Abelian Varieties"

Speaker: Elena Mantovan, Caltech

### Algebraic and Arithmetic Geometry Seminar: "Tropical totally positive cluster varieties"

Speaker: Lara Bossinger, UNAM

### Analysis Seminar: "Dominating sets, spectral estimates and null-controllability"

Speaker: Marcu-Antone Orsoni, University of Toronto, Mississauga

### Combinatorics Seminar: "On Symmetric Edge Polytopes'

Speaker: Benjamin Braun, University of Kentucky

### Statistics and Data Science Seminar: "New results in model validation from cross-validation to concentration inequalities"

Speaker: Morgane Austern, Department of Statistics, Harvard University

### Combinatorics Seminar: "The nilpotent variety of an asymptotic semigroup"

Speaker: Mahir Bilen Can, Tulane University

### 3rd Year Candidacy Requirement/Analysis Seminar: "History and Future Directions of Wavelet Representation"

Speaker: Jeremy Cummings, Washington University in Saint Louis

### Combinatorics Seminar: “Combinatorial Evaluation of Hyperoctahedral Group Characters”

Speaker: Mark Skandera, Lehigh University

### Szego Seminar: “A Game of Brussel Sprouts”

Speaker: Akshata Pisharody, Washington University in Saint Louis

### Math and Stats Department Fireside Chat (Graduate Student Event)

Speaker: Steven Frankel, Washington University in Saint Louis

### Statistics and Data Science Seminar: "A change point detection method in high dimensions based on U-statistics"

Speaker: B. Cooper Boniece, Utah University

### Geometry and Topology Seminar: "Seiberg-Witten Floer homotopy and contact structures"

Speaker: Nobuo Iida, Tokyo Institute of Technology

### Combinatorics Seminar: "Combinatorics of the infinity-gon via singularity theory"

Speaker: Jenny August, Aarhus University

### Analysis Seminar: "The Hochschild Cohomology of Roe Type Algebras"

Speaker: Mathew Lorentz, Michigan State University

### Statistics and Data Science Seminar: "Fast methods for conditional simulation"

Speaker: Doug Nychka, Department of Applied Mathematics and Statistics, Colorado School of Mines

### Colloquium: "Assessing derived variables and coherent structures from climate models"

Speaker: Doug Nychka, Department of Applied Mathematics and Statistics, Colorado School of Mines

### Geometry and Topology Seminar: "Families of integrable systems with S^1-symmetries"

Speaker: Joey Palmer, University of Illinois at Urbana-Champaign

### Combinatorics Seminar: “The Geometry and Combinatorics of Certain Hessenberg Varieties”

Speaker: Jan-Li Lin, Washington University in Saint Louis

### Szego Seminar

Speaker: Lucas Kerbs, Washington University in Saint Louis

### Math and Stats Department Fireside Chat (Graduate Student Event)

Speaker: John Shareshian, Washington University in Saint Louis

### Statistics and Data Science Seminar: "Network Level Analysis of Machine Learning Predictions in the Human Functional Connectome"

Speaker: Muriah Wheelock, Mallinckrodt Institute of Technology

### Algebraic and Arithmetic Geometry Seminar: "Exceptional jumps of the Picard rank of K3 surfaces over number fields"

Speaker: Salim Tayou, Harvard University

### Combinatorics Seminar: "Combinatorial conditions for virtually Cohen-Macaulay monomial ideals"

Speaker: Jay Yang, Washington University in Saint Louis

### Combinatorics Seminar: "Equivariant Kazhdan–Lusztig theory of paving matroids"

Speaker: Trevor Karn, University of Minnesota

### Statistics and Data Science Seminar: "Sense Now Test Later – Hypothesis-Testing in Self-powered Sensors"

Speaker: Shantanu Chakrabartty, Department of Computer Science and Engineering, Washington University in St. Louis

### AAG Seminar: "On $\ell$-torsion of superelliptic Jacobians over finite fields"

Speaker: Jonathan Love, McGill University

### Senior Thesis Presentation: "Representation Theory of the Symmetric Group"

Speaker: Zheyuan Li, Washington University in Saint Louis

### Math and Stats Department Fireside Chat (Graduate Student Event)

Speaker: Rachel Roberts, Washington University in Saint Louis

### Statistics and Data Science Seminar: "Two topics in the analysis of spatially indexed functional data"

Speaker: Piotr Kokoszka, Department of Statistics, Colorado State University

### Combinatorics Seminar: "When do quasisymmetric functions know that trees are different?"

Speaker: Peter McNamara, Bucknell University