# Past Events

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

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

Speaker: Richard Davis, Columbia University

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

Speaker: Radu Laza, Stony Brook 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

### 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

### 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: "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