**ORGANIZERS:** GUILLAUME BAL, Director, Committee on Computational and Applied Mathematics (CCAM), Professor, Departments of Statistics and Mathematics; DANIEL SANZ-ALONSO, Assistant Professor, Department of Statistics (CCAM), NISHA CHANDRAMOORTHY

Department of Statistics, Committee on Computational and Applied Mathematics (CCAM)

**TIME AND VENUE:** THURSDAYS, 4PM-5PM IN JONES 303 (unless otherwise indicated in **BLUE**). For further information and inquiries about building access for persons with disabilities, please email Jonathan G. Rodriguez at jgrodriguez@uchicago.edu. If you wish to subscribe to our listserv, please visit the following website: https://lists.uchicago.edu/web/subscribe/cam_colloquium."

**PLEASE NOTE**: This colloquium supersedes the **Scientific and Statistical Computing Seminar** that met from Fall 2011–Spring 2017.

SUMMER QUARTER 2024

JULY

**MONDAY, JULY 1, 2024, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue**

**Special Colloquium **

SEBASTIAN REICH, Institute of Mathematics, University of Potsdam

"Filtered data based estimators for stochastic processes driven by coloured noise"

**TUESDAY, JULY 2, 2024, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue**

**Special Colloquium **

JONAS LATZ, Department of Mathematics, University of Manchester

"Losing momentum in continuous-time stochastic optimisation"

SEPTEMBER

**MONDAY SEPTEMBER 23, 2024, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue**

**Special Colloquium **

WEI CAI, Department of Mathematics, Southern Methodist University

"SOC-MartNet: A Martingale Neural Network for the Hamilton-Jacobi-Bellman Equation without Explicit inf_u H in Stochastic Optimal Controls"

THURSDAY, SEPTEMBER 26, 2024, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue** **

YI SUN, Department of Statistics, University of Chicago

OCTOBER

THURSDAY, OCTOBER 3, 2024, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

BIANCA M. DUMITRASCU, Herbert and Florence Institute for Cancer Dynamics, Herbert Irving Comprehensive Cancer Center, Columbia University

THURSDAY, OCTOBER 10, 2024, at 4:00 PM, in **John Crerar Library 390, 5730 S. Ellis Avenue **

DANIEL SANZ-ALONSO, Department of Statistics, Computational and Applied Mathematics, University of Chicago

THURSDAY, OCTOBER 17, 2024, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

WENJING LIAO, School of Mathematics, Georgia Institute of Technology

THURSDAY, OCTOBER 24, 2024, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

ANJALI NAIR, Department of Statistics, Computational and Applied Mathematics, University of Chicago

THURSDAY, OCTOBER 31, 2024, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

THUYEN DANG, Department of Statistics, Computational and Applied Mathematics, University of Chicago

NOVEMBER

THURSDAY, NOVEMBER 7, 2024, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

MADHAV MANI, McCormick School of Engineering, Northwestern University

**TUESDAY, NOVEMBER 12, 2024, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue**

**Special Colloquium **

QIANXIAO LI Department of Mathematics, National University of Singapore

THURSDAY, NOVEMBER 14, 2024, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

SUNČICA ČANIĆ, Department of Mathematics, University of California, Berkeley

THURSDAY, NOVEMBER 21, 2024, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

SAUGATA BASU, Department of Mathematics, Purdue University

DECEMBER

THURSDAY, DECEMBER 5, 2024, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

FEI LU, Department of Mathematics, Johns Hopkins University

### Colloquium Archives

### AUTUMN QUARTER 2023

SEPTEMBER

THURSDAY, SEPTEMBER 28, 2023, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

JEREMY HOSKINS,** **Department of Statistics (CAMI), University of Chicago

"Title to be announced"

OCTOBER

**WEDNESDAY,** October 4, 2023, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

PEDRAM HASSANZADEH,** **Department of Mechanical Engineering, Department of Earth, Environmental, and Planetary Sciences, Rice University

"Integrating the spectral analyses of neural networks and nonlinear physics for explainability, generalizability, and stability"

THURSDAY, October 5, 2023, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

ANNA SEIGAL,** **School of Engineering and Applied Sciences, Harvard University

"Factorising data"

THURSDAY, October 12, 2023, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

MATHIAS OSTER,** ** Institute für Geometrie und Praktische Mathematik at the RWTH Aachen

"On Semi-global Optimal Control and its Application to Machine Learning"

**CANCELLED** THURSDAY, October 19, 2023, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

INGEBORG GJERDE,** ** Simula Research Laboratory

"Understanding the glymphatic mystery: Analysis and discretization methods for network models"

THURSDAY, October 19, 2023, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

L.RIDGWAY SCOTT,** ** Computational and Applied Mathematics & Departments of Computer Science and Mathematics, University of Chicago

"Advances in Flight Simulation and Flow Instability"

**CANCELLED **THURSDAY, October 26, 2023, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

NIR SHARON,** ** Applied Math department in the School of Mathematical Sciences, Tel Aviv University

"On approximation and representation of manifold-valued functions"

NOVEMBER

THURSDAY, November 2, 2023, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

**Joint Colloquium with The Data Science Institute**

PER-GUNNAR MARTINSSON, Department of Mathematics and the Oden Institute, University of Texas at Austin

"Randomized Algorithms for Linear Algebraic Computations"

THURSDAY, November 9, 2023, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

SHIDONG JIANG, Center for Computational Mathematics, Flatiron Institute

"A Dual-space Multilevel Kernel-splitting Framework for Discrete and Continuous Convolution"

THURSDAY, November 16, 2023, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

MIRJETA PASHA, Department of Mathematics, Tufts University

"Bayesian and Deterministic Methods with Edge-Preserving Priors for Spatio-Temporal Large-Scale Inverse Problems"

THURSDAY, November 30, 2023, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

**Joint Colloquium with The Department of Statistics and The Data Science Institute **

ANNA GILBERT,** **Department of Electrical Engineering, Yale University

"Project and Forget: Solving Large-Scale Metric Constrained Problems"

**DECEMBER**

THURSDAY, December 7, 2023, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

NISHA CHANDRAMOORTHY,** **School of Computational Science and Engineering College of Computing, Georgia Tech

"Rigorous Computation of Linear Response and Sampling"

### WINTER QUARTER 2024

#### JANUARY

THURSDAY, JANUARY 4, 2024, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

**Joint Colloquium with the Department of Statistics**

DAN MIKULINCER, MIT Mathematics

"Diffusion-based probabilistic flows and low distortion mappings"

**MONDAY, JANUARY 8, 2024, at 11:30 AM, in Jones 303, 5747 South Ellis Avenue**

**Joint Colloquium with the Department of Statistics**

LINGFU ZHANG, Department of Statistics, University of California, Berkeley

"Probabilistic Perspective Toward Last Passage Percolation and KPZ"

THURSDAY, JANUARY 11, 2024, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

**Joint Colloquium with the Department of Statistics**

MONTIE AVERY, Department of Mathematics and Statistics, Boston University

"Universal spreading into unstable states"

**TUESDAY, JANUARY 16, 2024, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue**

**Joint Colloquium with the Department of Statistics**

YIZHE ZHU, Department of Mathematics, University of California, Irvine

"Asymmetry Helps: Non-Backtracking Spectral Methods for Sparse Matrices and Tensors"

THURSDAY, JANUARY 18, 2024, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

**Joint Colloquium with the Department of Statistics**

NICHOLAS BOFFI, Courant Institute of Mathematical Sciences, NYU

“On flows and diffusions: from the many-body Fokker-Planck equation to stochastic interpolants”

**MONDAY, JANUARY 22, 2024, at 11:30 AM, in Jones 303, 5747 South Ellis Avenue**

**Joint Colloquium with the Department of Statistics**

ERNEST RYU, Department of Mathematical Sciences, Seoul National University

"Toward a grand unified theory of accelerations in optimization and machine learning"

THURSDAY, JANUARY 25, 2024, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

**Joint Colloquium with the Department of Statistics**

SITING LIU, Department of Mathematics, University of California, Los Angeles

"Enhancing PDE Computations and Score-Based Generative Models through Optimization"

**TUESDAY, JANUARY 30, 2024, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue**

**Joint Colloquium with the Department of Statistics**

PROMIT GHOSAL, Department of Mathematics, Brandeis University

“Fractal Geometry of Stochastic Partial Differential Equations”

#### FEBRUARY

THURSDAY, FEBRUARY 1, 2024, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

**Joint Colloquium with the Department of Statistics**

NISHA CHANDRAMOORTHY, School of Computational Science and Engineering, Georgia Tech

"Learning from dynamics, learning dynamics and the dynamics of learning"

**FRIDAY, MARCH 15 2024, at 2:00 PM, in Eckhart Hall, Room 133, 1118 E. 58th Street **

**Special Colloquium**

VITALIY KURLIN, Department of Computer Science and Materials Innovation Factory, University of Liverpool, UK

"A Complete and Continuous Isometry Invariant of Euclidean Clouds of Unordered Points"

SPRING QUARTER 2024

MARCH

THURSDAY, MARCH 21, 2024, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

**Joint Colloquium with The James Franck Institute **

SHIWEI ZHANG, Center for Computational Quantum Physics (CCQ), Flatiron Institute

"Stochastic approaches to quantum any-body problems: challenges and opportunities"

**TUESDAY, MARCH, 26 2024, at 4:30 PM, in Jones 303, 5747 South Ellis Avenue**

JIANFENG LU, Mathematics Department, Duke University

"Actor-critic method for solving high dimensional Hamilton-Jacobi-Bellman type PDEs"

THURSDAY, MARCH 28, 2024, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

EWAIN GWYNNE, Department of Mathematics, University of Chicago

"Random surfaces and Liouville quantum gravity"

APRIL

**RESCHEDULED TO ****THURSDAY, OCTOBER 3, 2024**** -**THURSDAY, APRIL 4, 2024, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

BIANCA M. DUMITRASCU, Herbert and Florence Institute for Cancer Dynamics, Herbert Irving Comprehensive Cancer Center, Columbia University

**FRIDAY, APRIL 5, 2024, at 12:30 PM, in Jones 303, 5747 South Ellis Avenue**

**Joint CAM Colloquium/DSI Distinguished Speaker Series **

INDERJIT S. DHILLON, Center for Big Data Analytics, Department of Computer Science, University of Texas at Austin

"MatFormer: Nested Transformer for Elastic Inference"

**FRIDAY, APRIL 12, 2024, at 3:30 PM, in Jones 303, 5747 South Ellis Avenue**

NICK TREFETHEN, School of Engineering and Applied Sciences, Harvard University

"THE AAA ALGORITHM FOR RATIONAL APPROXIMATION"

THURSDAY, APRIL 18, 2024, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

YULONG LU, School of Mathematics, University of Minnesota Twin Cities

"Diffusion Models: Theory and Applications (in PDEs)"

THURSDAY, APRIL 25, 2024, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

JONATHAN HAUENSTEIN, Department of Applied and Computational Mathematics and Statistics, University of Notre Dame

"Estimating root counts and probability distributions using homotopies"

MAY

THURSDAY, MAY 9, 2024, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

MICHAEL I. WEINSTEIN, Department of Applied Physics and Applied Mathematics, Department of Mathematics, Columbia University

"Pseudo-magnetism and Landau Levels"

**TUESDAY, MAY 14, 2024, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue**

CONG MA, Department of Statistics, University of Chicago

"Top-K Ranking with a Monotone Adversary"

**CANCELLED-**THURSDAY, MAY 16, 2024, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

LAURE ZANNA, Courant Institute, New York University

"Multiscale Climate Modeling in the Era of AI"

**THURSDAY, May 23, 2024, at 4:00 PM, in** **Jones 226, 5747 South Ellis Avenue**

HAIZHAO YANG, Departments of Mathematics and Computer Science (Affiliated), The University of Maryland Institute for Advanced Computer Studies, University of Maryland

"Finite Expression Method: A Symbolic Approach for Scientific Machine Learning"

THURSDAY, MAY 30, 2024, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

**CAM & Department of Mathematics Special Joint Colloquium**

BERND STURMFELS, MPI Leipzig and UC Berkeley

"The two lives of the Grassmannian"

### AUTUMN QUARTER 2022

**ORGANIZERS:** JEREMY HOSKINS, Assistant Professor, Department of Statistics (CAMI); YUEHAW KHOO, Assistant Professor, Department of Statistics (CAMI)

SEPTEMBER

THURSDAY, September 29, 2022, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

CHRISTOF SPARBER,** ** Department of Mathematics, Statistics & Computer Science (MSCS), University of Illinois Chicago

"Nonlinear Ground States and The Long-time Behavior of Nonlinear Schrödinger Equations"

OCTOBER

THURSDAY, October 6, 2022, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

DI FANG,** ** Simons Institute for the Theory of Computing and Department of Mathematics, University of California, Berkeley

"Quantum Algorithms for Hamiltonian Simulation with Unbounded Operators"

THURSDAY, October 13, 2022, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

YUEHAW KHOO, Department of Statistics (CAMI), University of Chicago

"Scientific Computing for Statistical Mechanics and Quantum Systems"

THURSDAY, October 20, 2022, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

FRUZSINA AGOCS,** **Center for Computational Mathematics within the Flatiron Institute

"An Adaptive Spectral Method for Highly Oscillatory ODEs with Frequency-independent Cost "

THURSDAY, October 27, 2022, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

BENJAMIN PEHERSTORFER,** ** Department of Computer Science, Department of Mathematics (affiliated), Center for Data Science (affiliated), Courant Institute of Mathematical Sciences, New York University

"Neural Galerkin Schemes for Evolution Equations "

NOVEMBER

THURSDAY, November 3, 2022, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

NAN CHEN, Department of Mathematics, University of Wisconsin-Madison

"A Physics-Informed Data-Driven Algorithm for Ensemble Forecast of Complex Turbulent Systems"

THURSDAY, November 10, 2022, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

BENJAMIN RECHT, Department of Electrical Engineering and Computer Sciences, University of California, Berkeley

"Steampunk Data Science"

THURSDAY, November 17, 2022, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

ADRIANNA GILLMAN, Applied Mathematics, University of Colorado Boulder

"Fast Direct Solvers for Boundary Integral Equations"

DECEMBER

THURSDAY, December 1, 2022, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

FABIAN FAULSTICH, Department of Mathematics, University of California, Berkeley

On the Pure State V-representability of Density Matrix Embedding Theory

### WINTER QUARTER 2023

THURSDAY, January 12, 2023, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

DI FANG,** ** Simons Institute for the Theory of Computing and Department of Mathematics, University of California, Berkeley

"When Numerical Analysis Meets Quantum Algorithms for Hamiltonian Simulation"

**TUESDAY**, January 17, 2023, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

GARY CHOI,** **Department of Mathematics, Massachusetts Institute of Technology

"Geometric and Topological Design of Kirigami Metamaterials"

**THURSDAY**, January 19, 2023, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

LAUREL OHM,** **Mathematics Department, Princeton University

"A PDE Perspective on the Hydrodynamics of Flexible Filaments"

FEBRUARY

THURSDAY, February 23, 2023, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

ANTONIO (TUCA) AUFFINGER,** **Department of Mathematics, Northwestern University

"Dimension Reduction Methods for Data Visualization"

### SPRING QUARTER 2023

MARCH

THURSDAY, March 23, 2023, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

Peter Šemrl,** **Institute of Mathematics, Physics and Mechanics, University of Ljubljana

"From Loewner's Characterization of Operator Monotone Functions to Fundamental Theorem of Chronogeometry "

**Tuesday**, March 28, 2023, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

XIUYUAN CHENG, ** **Department of Mathematics, Duke University

"Gaussian Kernelized Graph Laplacian: Eigen-Convergence and Bi-Stochastic Normalization "

THURSDAY, March 30, 2023, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

STEPHEN KIRKLAND,** **Department of Mathematics, University of Manitoba

"Kemeny's constant for an undirected graph: how much can adding one edge change things? "

APRIL

THURSDAY, April 13, 2023, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

**Joint Colloquium with The Data Science Institute**

LEXING YING,** **Department of Mathematics and Institute for Computational and Mathematical Engineering, Stanford University

"Quantum Numerical Analysis"

THURSDAY, April 20, 2023, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

KUI REN,** **Department of Applied Physics & Applied Mathematics, Columbia University

"State-dependent Diffusion for Global Optimization"

MAY

**FRIDAY, May 5, 2023, AT 3:00 PM, in Jones 303, 5747 S. Ellis**

**Joint Colloquium with The Data Science Institute**

AMIT SINGER,** **Department of Mathematics, Program in Applied and Computational Mathematics (PACM), & Center for Statistics and Machine Learning (CSML), Princeton University

"Method of Moments in Cryo-EM"

THURSDAY, May 11, 2023, at 4:00 PM, in Jones 303, 5747 South Ellis Avenue

**Joint Colloquium with The Data Science Institute**

RACHEL WARD,** **Oden Institute for Computational Engineering & Sciences, Department of Mathematics, The University of Texas at Austin

"Gradient Descent for Low-Rank Matrix Factorization"

**THURSDAY, May 18, 2023, at 3:00 PM, in Jones 303, 5747 S. Ellis**

CHI-KWONG LI,** **Department of Mathematics, College of William and Mary & Institute for Quantum Computing, University of Waterloo

"Some Recent Results in Quantum Tomography"

**TUESDAY, May 30, 2023, AT 9:30 AM, in Jones 303, 5747 S. Ellis**

KIM-CHUAN TOH,** **Department of Mathematics and Institute of Operations Research and Analytics, National University of Singapore

"Algorithms for Semidefinite Programming"

**TUESDAY, June 6, 2023, AT 4:00 PM, in Jones 303, 5747 S. Ellis**

JONATHAN WEARE,** **Courant Institute of Mathematical Sciences, New York University

"Iterative Random Sparsification and Convergence of a Fast Randomized Jacobi Iteration"

### AUTUMN QUARTER 2021

ORGANIZER

JEREMY HOSKINS, Assistant Professor, Department of Statistics (CAMI)

OCTOBER

THURSDAY, October 7, 2021, at 4PM

DANIEL SANZ-ALONSO,** ** Department of Statistics, University of Chicago

**Finite Element and Graphical Representations of Gaussian Processes**

THURSDAY, October 14, 2021, at 4PM

MICHAEL LINDSEY,** ** Department of Mathematics, Courant Institute of Mathematical Sciences

**Tools for Multimodal Sampling**

THURSDAY, October 21, 2021, at 4PM

JOE KILEEL,** ** Department of Mathematics, University of Texas at Austin

**Low-rank Symmetric Tensor Decompositions**

THURSDAY, October 28, 2021, at 4PM

JOSE PEREA, Department of Computational Mathematics, Science and Engineering; Department of Mathematics, Michigan State University

**Approximate Vector Bundles**

NOVEMBER

THURSDAY, November 4, 2021, at 4PM

AMIR SAGIV, Department of Applied Physics and Applied Mathematics, Columbia University New York

**Floquet Hamiltonians - Effective Gaps and Resonant Decay**

THURSDAY, November 11, 2021, at 4PM

RIDGWAY SCOTT, Department of Computer Science, Department of Mathematics, University of Chicago

**A Modern Approach to Simulating Flight**

THURSDAY, November 18, 2021, at* 4:15PM*

JASON KAYE, Center for Computational Mathematics, Flatiron Institute

**Efficient Numerical Algorithms for Simulating Quantum Dynamics**

### DECEMBER

THURSDAY, December 2, 2021, at 4PM

ERIC JONAS, Department of Computer Science, University of Chicago

**Tackling Spectroscopic Inverse Problems via Structured Prediction**

THURSDAY, December 9, 2021, at 4PM

François Monard, Department of Mathematics, University of California, Santa Cruz

**Sampling Issues for the X-ray Transform on Simple Surfaces**

### WINTER QUARTER 2022

ORGANIZER

YUEHAW KHOO, Assistant Professor, Department of Statistics (CAMI)

JANUARY

**RESCHEDULED**

THURSDAY, January 13, 2021, at 4PM

JEFFREY ZHANG,** ** Department of Mathematical Sciences, Carnegie Mellon University

**On Local Minima in Polynomial Optimization**

**POSTPONED**

THURSDAY, January 20, 2021, at 4PM

TAMIR BENDORY, Department of Electrical Engineering, Tel Aviv University

**TBA**

**RESCHEDULED**

THURSDAY, January 27, 2021, at 4PM

MANAS RACHH, Center for Computational Mathematics, Flatiron Institute

**TBA**

FEBRUARY

THURSDAY, February 17, 2022, at 4PM

YUXIN CHEN,** ** Department of Computer Science, University of Chicago

**Near-Optimal Bayesian Active Learning and Adaptive Information Acquisition: Submodular Surrogates and Beyond**

**FRIDAY, February 25, 2022, at 11AM**

SIMON BECKER,** ** Department of Mathematics, New York University

**Magic Angles for a Model of Twisted Bilayer Graphene**

MARCH

**THURSDAY****, March 10, 2022 at 3:30PM**

JEFFREY ZHANG,** ** Department of Mathematical Sciences, Carnegie Mellon University

**On Local Minima in Polynomial Optimization**

THURSDAY, March 17, 2022, at 4PM

JOONHO LEE,** ** The Reichman Group, Columbia University

**Auxiliary-Field Quantum Monte Carlo for Electronic Ground State and Thermal Electronic States**

### SPRING QUARTER 2022

*All Colloquium presentations during Spring Quarter will be offered strictly in person.*

ORGANIZER

DANIEL SANZ-ALONSO, Assistant Professor, Department of Statistics (CAMI)

MARCH

THURSDAY, March 31, 2022, at 4PM

MANAS RACHH, Center for Computational Mathematics, Flatiron Institute

**Static Currents in Type-I superconductors**

**SPECIAL EVENT: BAHADUR MEMORIAL LECTURES **

THURSDAY, April 7, 2022, at 3:30PM

MICHAEL A. NEWTON, Department of Statistics, University of Wisconsin

**Can Clustering Improve the Performance of Large-scale Hypothesis Testing? Ideas from an Empirical Bayes Lab**

THURSDAY, April 14, 2022, at 4PM

QIANG YE, Department of Mathematics, University of Kentucky

**Batch Normalization and Preconditioning for Neural Network Training**

THURSDAY, April 21, 2022, at 4PM

ANDREW STUART, Computing and Mathematical Sciences, California Institute of Technology

**Learning Operators**

THURSDAY, April 28, 2022, at 4PM

NICHOLAS MARSHALL, Department of Mathematics, Program in Applied and Computational Mathematics, Princeton University

**Learning Rates, Corrupted Linear Systems, and Randomized Kaczmarz**

MAY

THURSDAY, May 5, 2022, at 4PM

LULU KANG, Applied Mathematics, Illinois Institute of Technology

**Energetic Variational Inference**

THURSDAY, May 12, 2022, at 4PM

STEFAN STEINERBERGER, Department of Math, University of Washington, Seattle

**Boundary and Curvature on Graphs**

**SPECIAL EVENT: FRIDAY, May 13, 2022, at 4PM**

TAMARA KOLDA, Mathematical Consultant, MathSci.ai

**Tensor Moments of Gaussian Mixture Models**

THURSDAY, May 19, 2022, at 4PM

EMIL CONSTANTINESCU, Laboratory for Applied Mathematics, Numerical Software, and Statistics, Argonne National Laboratory

**Solving Stochastic Inverse Problems by Using Statistical Scoring Rules**

THURSDAY, May 26, 2022, at 4PM

EDINAH GNANG**, **Department of Applied Mathematics and Statistics, Johns Hopkins

**Arithmetic Formula Complexity**

**JUNE**

THURSDAY, June 2, 2022, at 4PM

GEORGE CYBENKO, Dorothy and Walter Gramm Professor of Engineering, Dartmouth College

**Formal Languages, Graphs, Machine Learning and Topology\**

ORGANIZER

DANIEL SANZ-ALONSO, Assistant Professor, Department of Statistics

AUTUMN QUARTER 2020

OCTOBER

**SPECIAL EVENT: CAM COLLOQUIUM RESEARCH TALKS
THURSDAY, October 1, 2020 via ZOOM**

4:15PM ALEX STRANG, CCAM William H. Kruskal Instructor

**"Solutions to the Minimum Variance Problem and Triangulation"**

4:40PM PIERRE YVES, CCAM William H. Kruskal Instructor

**"Number Rigidity in Random Schrödinger Operators"**

5:05PM ZHONGJIAN WANG, CCAM William H. Kruskal Instructor

**"From Effective Diffusivity to Chaoticity of the Flows"**

THURSDAY, October 8, 2020, at 4:15 PM via ZOOM

FRANCIS CHUNG** **Department of Mathematics, University of Kentucky

**"Optical Tomography with Local Data"**

THURSDAY, October 15, 2019, at 4:15 PM via ZOOM

ALEXEI NOVIKOV, Department of Mathematics, Pennsylvania State University

**"Imaging With Highly Incomplete and Corrupted Data"**

THURSDAY, October 22, 2020, at 4:15 PM via ZOOM

ANIL DAMLE, Department of Computer Science, Cornell University

**"Uniform Invariant Subspace Perturbation Theory and Applications"**

THURSDAY, October 29, 2020, at 4:15 PM via ZOOM

MATTHIAS MORZFELD, Department of Mathematics, University of Arizona

**"What is Bayesian Inference, Why is it Useful in Earth Science and Why is it Challenging to do Numerically?"**

### NOVEMBER

**SPECIAL EVENT: CAM COLLOQUIUM RESEARCH TALKS
THURSDAY, November 5, 2020 via ZOOM**

4:15PM FATMA TERZIOGLU, CCAM William H. Kruskal Instructor

**"****Uniqueness and Stability of Reconstruction in Multi-Energy Computed Tomography"**

4:40PM BRAD NELSON, CCAM William H. Kruskal Instructor

**"****Topological Data Analysis, Linear Algebra, and Optimization"**

5:05PM BENJAMIN PALACIOS, CCAM William H. Kruskal Instructor

**"****Pencil-beam Approximation of Fokker-Planck and Applications"**

5:30PM DANIEL MASSATT, CCAM William H. Kruskal Instructor

**"****Multiscale Topological Invariants of Floquet Topological Insulators"**

THURSDAY, November 12, 2020, at 4:15 PM via ZOOM

QIANG DU, Applied Physics and Applied Mathematics, Columbia University New York

**"From Integrating to Learning Dynamics: New Studies on Linear Multistep Methods"**

THURSDAY, November 19, 2020, at 4:15 PM via ZOOM

HAIZHAO YANG, Department of Mathematics, Purdue University

**"A Few Thoughts on Deep Learning-Based Scientific Computing"**

### DECEMBER

THURSDAY, December 3, 2020, at 4:15 PM via ZOOM

TIN-YAU TAM, Department of Mathematics and Statistics, University of Nevada, Reno

**"Metric and Spectral Geometric Means of Positive Definite Matrices"**

WINTER QUARTER 2021

**JANUARY**

THURSDAY, January 21, 2021, at 4:15 PM via ZOOM

MAZIAR RAISSI** **Applied Mathematics, University of Colorado Boulder

**"Hidden Physics Models"**

THURSDAY, January 28, 2021, at 4:15 PM via ZOOM

VIVAK PATEL, Department of Statistics, University of Wisconsin–Madison

**"Adaptive Iterative Methods for Linear Systems"**

**FEBRUARY**

THURSDAY, February 4, 2021, at 4:15 PM via ZOOM

NICHOLAS ZABARAS, Scientific Computing and Artificial Intelligence (SCAI) Laboratory, University of Notre Dame

**"Physics Informed Learning for Multiscale Systems"**

THURSDAY, February 11, 2021, at 4:15 PM via ZOOM

ORLY ALTER, Departments of Bioengineering and Human Genetics and the Scientific Computing and Imaging Institute and the Huntsman Cancer Institute, University of Utah

**"Multi-Tensor Decompositions for Personalized Cancer Diagnostics, Prognostics, and Therapeutics in the Clinic"**

THURSDAY, February 18, 2021, at 4:15 PM via ZOOM

DEJAN SLEPCEV, Department of Mathematical Sciences, Carnegie Mellon University

**"Nonlocal Wasserstein Metric, Gradient Flows on Point Clouds and Their Continuum Limits"**

THURSDAY, February 25, 2021, at 4:15 PM via ZOOM

TAMARA BRODERICK, Department of Electrical Engineering & Computer Science, Massachusetts Institute of Technology

**"An Automatic Finite-Sample Robustness Metric: Can Dropping a Little Data Change Conclusions?"**

**MARCH**

THURSDAY, March 4, 2021, at 4:15 PM via ZOOM

JUSTIN SOLOMON, Department of Electrical Engineering & Computer Science, Massachusetts Institute of Technology

**"Transport Methods for Aligning Uncertain Models and Data"**

THURSDAY, March 11, 2021, at 4:15 PM via ZOOM

BEI WANG, Department of Mathematics, University of Utah

**"Sketching Merge Trees"**

THURSDAY, March 18, 2021, at 4:15 PM via ZOOM

WILLIAM LEEB, School of Mathematics, University of Minnesota

**"Matrix Denoising with Weighted Loss"**

SPRING QUARTER 2021

APRIL

THURSDAY, April 15, 2021, at 4:15 PM via ZOOM

ROBERT WEBBER, Courant Institute of Mathematical Sciences, New York University

**"Monte Carlo Methods for High-dimensional Estimation"**

THURSDAY, April 22, 2021, at 4:15 PM via ZOOM

ANNA LITTLE, Department of Mathematics, University of Utah

**"Clustering High-dimensional Data with Path Metrics: A Balance of Density and Geometry"**

THURSDAY, April 29, 2021, at 4:15 PM via ZOOM

BORIS LANDA, Department of Mathematics, Yale University

**"When Sinkhorn-Knopp Meets Marchenko-Pastur: Simple Diagonal Scaling Reveals the Rank of a Count Matrix"**

MAY

THURSDAY, May 6, 2021, at 4:15 PM via ZOOM

Caroline Moosmüller, Department of Mathematics, University of California, San Diego.

**"Efficient Classification of Distributions via Optimal Transport Embeddings"**

THURSDAY, May 13, 2021, at 4:15 PM via ZOOM

BOBBIE WU, Martinsson Research Group, University of Texas at Austin

**"A Simple Quadrature for Fast Integral Equation Solvers"**

THURSDAY, May 20, 2021, at 4:15 PM via ZOOM

RICARDO BAPTISTA, Center for Computational Engineering, Massachusetts Institute of Technology

**"Sequential Bayesian Inference via Structured Nonlinear Couplings"**

ORGANIZER

DANIEL SANZ-ALONSO, Assistant Professor, Department of Statistics

AUTUMN QUARTER 2019

OCTOBER

THURSDAY, October 10, 2019, at 4:00 PM, in Jones 226, 5747 South Ellis Avenue

ALEXANDER WATSON, Mathematics Department, Duke University

**"Two-Dimensional Topological Insulators Beyond Periodic Structures"**

THURSDAY, October 17, 2019, at 4:00 PM, in Jones 226, 5747 South Ellis Avenue

GABOR PATAKI, Department of Statistics & Operations Research, University of North Carolina

**"Combinatorial Characterizations in Semidefinite Programming Duality: How Elementary Row Operations Help"**

THURSDAY, October 24, 2019, at 4:00 PM, in Jones 226, 5747 South Ellis Avenue

NATHAN KUTZ, Department of Applied Mathematics, University of Washington

**"Coordinates, Governing Equations and Limits of Model Discovery"**

THURSDAY, October 31, 2019, at 4:00 PM, in Jones 226, 5747 South Ellis Avenue

DANIELA CALVETTI, Department of Mathematics, Applied Mathematics and Statistics, Case Western Reserve University

**"Bayesian Hierarchical Models: Sparsity, Convexity and Models Reduction."**

NOVEMBER

THURSDAY, November 7, 2019, at 4:00 PM, in Jones 226, 5747 South Ellis Avenue

JOHN SCHOTLAND, Michigan Center for Applied and Interdisciplinary Mathematics, University of Michigan

**"Quantum Optics in Random Media"**

THURSDAY, November 14, 2019, at 4:00 PM, in Jones 226, 5747 South Ellis Avenue

GILBERT STRANG, Department of Mathematics, Massachusetts Institute of Technology

**"The Functions of Deep Learning"**

THURSDAY, November 21, 2019, at 4:00 PM, in Jones 226, 5747 South Ellis Avenue

TAMAS BUDAVARI, Department of Applied Mathematics and Statistics, Johns Hopkins Whiting School of Engineering

"**CAM Foundations of Survey Astronomy**"

DECEMBER

THURSDAY, December 5, 2019, at 4:00 PM, in Jones 226, 5747 South Ellis Avenue

CHANDRAJIT BAJAJ, Department of Computer Science & The Oden Institute of Computational Engineering and Sciences, Center for Computational Visualization, University of Texas

**"Learning the Koopman Operator for Dynamic Data"**

WINTER QUARTER 2020

JANUARY

MONDAY, January 6, 2020, at 4:00 PM, **in Jones 303, 5747 S. Ellis Avenue
Joint Seminar with Statistics**

BORIS HANIN, Department of Mathematics, Texas A&M University

"Mathematics of Deep Neural Networks"

THURSDAY, January 15, 2020, at 4:00 PM, **in Jones 303, 5747 S. Ellis Avenue
Joint Seminar with Statistics**

LISE-MARIE IMBERT-GERARD, Department of Mathematics, University of Maryland

"Wave Propagation in Inhomogeneous Media: An Introduction to Generalized Plane Waves"

THURSDAY, January 16, 2020, at 4:00 PM, **in Jones 303, 5747 S. Ellis Avenue
Joint Seminar with Statistics**

JEREMY G. HOSKINS, Mathematics Department, Yale University

"Elliptic PDEs on Regions with Corners"

THURSDAY, January 23, 2020, at 4:00 PM, **in**** Jones 303, 5747 S. Ellis Avenue
Joint Seminar with Statistics**

SHAHAR KOVALSKY, Department of Mathematics, Duke University

"Geometry + Optimization: Towards Computational Anatomy"

### FEBRUARY

MONDAY, February 3, 2020, 4:00 PM, **in**** Jones 303, 5747 S. Ellis Avenue
Joint Seminar with Statistics**

FRANCA HOFFMANN, Department of Computing and Mathematical Sciences, California Institute of Technology

"Gradient Flows: From PDE to Data Analysis."

THURSDAY, February 13, 2020, at 4:00 PM, in Jones 226, 5747 South Ellis Avenue

ALEXIS DROUOT, Department of Mathematics, Columbia University

"Mathematical Mysteries Behind Topological Insulators

THURSDAY, February 20, 2020, at 4:00 PM, in Jones 226, 5747 South Ellis Avenue

XU YANG, Department of Mathematics, University of California Santa Barbara

"Seismic Tomography, Image Segmentation and Deep Learning"

THURSDAY, February 27, 2020, at 4:00 PM, in Jones 226, 5747 South Ellis Avenue

LEONARDO ZEPEDA, Mathematics Department, University of Wisconsin-Madison

"Wide-band Butterfly Network: Sub-wavelength Imaging via Multi-frequency Neural Networks"

MARCH

THURSDAY, March 5, 2020, at 4:00 PM, in Jones 226, 5747 South Ellis Avenue

PAUL CAZEAUX, Applied Mathematics, University of Kansas

"Twists and Misfits: Mathematical Modeling for Incommensurate 2D Materials"

**RESCHEDULED**

THURSDAY, March 12, 2020, at 4:00 PM, in Jones 226, 5747 South Ellis Avenue

ANIL DAMLE, Department of Computer Science, Cornell University

"Uniform Invariant Subspace Perturbation Theory and Applications"

**CANCELED**

THURSDAY, March 19, 2020, at 4:00 PM, in Jones 226, 5747 South Ellis Avenue

ZHIZHEN JANE ZHAO, Department of Mathematics & Department of Statistics, University of Illinois at Urbana-Champaign

"TBA"

SPRING QUARTER 2020

**All presentations previously scheduled for SPRING QUARTER 2020 have been RESCHEDULED for a later date.**

ORGANIZER

DANIEL SANZ-ALONSO, Assistant Professor, Department of Statistics

SPRING QUARTER 2019

APRIL

THURSDAY, April 11, 2019, at 5:00 PM, in Jones 226, 5747 South Ellis Avenue

MELVIN LEOK, Department of Mathematics, University of California, San Diego

"Variational Discretizations of Gauge Field Theories Using Group-equivariant Interpolation Spaces"

THURSDAY, April 18, 2019, at 5:00 PM, in Jones 226, 5747 South Ellis Avenue

SHUYANG LING, Courant Institute of Mathematical Sciences, New York University

"Solving Inverse Problems on Networks: Graph Cuts, Optimization Landscape, Synchronization"

THURSDAY, April 25, 2019, at 4:00 PM, in Jones 226, 5747 South Ellis Avenue

MITCHELL LUSKIN, School of Mathematics, University of Minnesota

"Mathematical Modeling and Numerical Analysis for Incommensurate 2D Materials"

MAY

THURSDAY, May 2, 2019, at 4:00 PM, in Eckhart 202, 5734 S. University Avenue

PHILLIP MORRISON, Department of Physics and Institute for Fusion Studies, The University of Texas at Austin

"Structure and Computation of Magnetofluid and Other Matter Models"

**The CAM Colloquium featuring John Harlim has been moved to Friday, May 10, due to the following special lecture.**

THURSDAY, May 9, 2019, at 3:30 PM, in Kent 120, 1020 E. 58th Street

BAHADUR MEMORIAL LECTURES

IAIN JOHNSTONE, Departments of Statistics, Health Research and Policy, Stanford University

"High Dimensional Principal Component Analysis: Biases and Balms"

**FRIDAY, May 10, 2019, at 11:30 AM, in Jones 304, 5747 South Ellis Avenue**

JOHN HARLIM, Departments of Mathematics and Meterology, Institute of CyberScience, The Pennsylvania State University

"Manifold Learning Based Computational Methods"

THURSDAY, May 16, 2019, at 4:00 PM, in Jones 226, 5747 South Ellis Avenue

TINGRAN GAO, Department of Statistics, University of Chicago

"Manifold Learning on Fibre Bundles"

**THURSDAY, May 23, 2019, at 5:00 PM, in ECKHART 206, 5734 South University Avenue**

HARM DERKSEN, Department of Mathematics, University of Michigan

"Generalizations of Singular Values"

THURSDAY, May 30, 2019, at 4:00 PM, in Jones 226, 5747 South Ellis Avenue

JOE KILEEL, Program in Applied and Computational Mathematics, Princeton University

"Invariant and Tensor-based Approaches to Cryo-EM"

JUNE

**MONDAY, June 17, 2019, at 4:30 PM, in Stevanovich Center, MS 112, 5727 South University Avenue**

RTG SUMMER LECTURES 2019

DENNIS ELBRÄCHTER, University of Vienna

"Universal Sparsity of Deep ReLU Networks"

**WEDNESDAY, June 19, 2019, at 4:30 PM, in Stevanovich Center, MS 112, 5727 South University Avenue**

RTG SUMMER LECTURES 2019

JULIUS BERNER, University of Vienna

"Empirical risk minimization over deep neural networks overcomes the curse of dimensionality in the numerical approximation of Kolmogorov PDEs"

WINTER QUARTER 2019

JANUARY

THURSDAY, January 10, 2019, at 4:00 PM, in Jones 226, 5747 South Ellis Avenue

DAVID BINDEL, Department of Computer Science, Cornell University

"Stochastic Linear Algebra for Scalable Gaussian Processes"

**THURSDAY, January 17, 2019, at 4:00 PM, in Eckhart 133, 5734 S. University Avenue**

Joint Seminar with the Department of Statistics

YUEHAW KHOO, Department of Mathematics, Stanford University

"Multimarginal Optimal Transport, Density Functional Theory, and Convex Relaxation"

**TUESDAY, January 22, 2019, at 4:00 PM, in Eckhart 133, 5734 S. University Avenue**

Joint Seminar with the Department of Statistics

GAL MISHNE, Department of Mathematics, Yale University

"Local Geometric Spectral Data Analysis"

FEBRUARY

**WEDNESDAY, February 6, 2019, at 4:00 PM, in Eckhart 133, 5734 S. University Avenue**

Joint Seminar with the Department of Statistics

JONATHAN WEED, The Statistics and Data Science Center & Department of Mathematics, Massachusetts Institute of Technology

"Fast Rates and Fast Algorithms for the Wasserstein Distance"

THURSDAY, February 7, 2019, at 4:00 PM, in Jones 226, 5747 South Ellis Avenue

NICOLAS GARCIA TRILLOS, Department of Statistics, University of Wisconsin-Madison

"Large Sample Asymptotics of Spectra of Graph Laplacians and Semilinear Elliptic PDEs on Random Geometric Graphs"

**FRIDAY, February 8, 2019, at 4:00 PM, in Jones 226, 5747 South Ellis Avenue**

SHI JIN, Institute of Natural Sciences, Shanghai Jiao Tong University

"Hypocoercivity Based Local Sensitivity Analysis for Multiscale Kinetic Equations with Uncertainties"

THURSDAY, February 14, 2019, at 4:00 PM, in Jones 226, 5747 South Ellis Avenue

NAN CHEN, Department of Mathematics, University of Wisconsin-Madison

"A Conditional Gaussian Framework for Uncertainty Quantification, Data Assimilation and Prediction of Nonlinear Turbulent Dynamical Systems"

THURSDAY, February 21, 2019, at 4:00 PM, in Jones 226, 5747 South Ellis Avenue

YUEFAN DENG, Department of Applied Mathematics & Statistics, Stony Brook University

"Machine Learning for Intelligent Multiscale Modeling of Platelet Dynamics"

THURSDAY, February 28, 2019, at 4:00 PM, in Jones 226, 5747 South Ellis Avenue

DIONISIOS MARGETIS, Department of Mathematics and Institute for Physical Science and Technology, University of Maryland

"Electromagnetic Waves on Two-dimensional Materials: A Flavor of Dispersion and Homogenization in Plasmonics"

MARCH

THURSDAY, March 7, 2019, at 4:00 PM, in Jones 226, 5747 South Ellis Avenue

LILIANA BORCEA, Department of Mathematics, University of Michigan

"Reduced Order Model for Active Array Data Processing in Inverse Scattering"

AUTUMN QUARTER 2018

OCTOBER

THURSDAY, October 4, 2018, at 4:00 PM, in Jones 226, 5747 South Ellis Avenue

BERNARD MOURRAIN, INRIA

"Tensor Decomposition and Moment Varieties"

THURSDAY, October 11, 2018, at 4:00 PM, in Jones 226, 5747 South Ellis Avenue

KE YE, Academy of Mathematics and Systems Science, Chinese Academy of Sciences

"Tensor Ranks with Applications to Complexity Theory"

THURSDAY, October 18, 2018, at 4:00 PM, in Jones 226, 5747 South Ellis Avenue

LALIT JAIN, Department of Computer Science and Engineering, University of Washington

"Adapting Sampling for Crowdfunding"

THURSDAY, October 25, 2018, at 4:00 PM, in Jones 226, 5747 South Ellis Avenue

DMITRIY DRUSVYATSKIY, Mathematics Department, University of Washington

"Convergence Rates of Stochastic Algorithms in Nonsmooth Nonconvex Optimization"

NOVEMBER

THURSDAY, November 1, 2018, at 4:00 PM, in Jones 226, 5747 South Ellis Avenue

EMIL SIDKY, Department of Radiology, The University of Chicago

"Image Reconstruction in X-ray Tomography by Large-scale Optimization"

**THURSDAY, November 8, 2018, at 4:00 PM, in Kent 120, 1028 E. 58th Street**

*No CAM Colloquium due to the following special lecture.*

**Billingsley Lectures on Probability**

Departments of Statistics and Mathematics

Reception following the seminar at 5:00 PM, in Jones 111, 5747 S. Ellis Avenue

ALLYN SLY, Department of Mathematics, Princeton University

"Phase Transitions of Random Constraint Satisfaction Problems"

**WEDNESDAY, November 14, 2018, at 1:30 PM, in Ryerson 277, 1100 E. 58th Street**

ELISA SOVRANO, CMUP, Departamento de Matemática, Faculdade de Ciências, University of Porto, Portugal

"Multiplicity of Clines for Indefinite Nonlinear Problems in Population Genetics"

THURSDAY, November 15, 2018, at 4:00 PM, in Jones 226, 5747 South Ellis Avenue

HONGKAI ZHAO, Department of Mathematics, University of California, Irvine

"Intrinsic Complexity and its Scaling Law: From Approximation of Random Vectors and Random Fields to High Frequency Waves"

THURSDAY, November 29, 2018, at 4:00 PM, in Jones 226, 5747 South Ellis Avenue

LIN LIN, Department of Mathematics, University of California, Berkeley

"Grassmann Manifold, Gauge, and Quantum Chemistry"

DECEMBER

THURSDAY, December 6, 2018, at 4:00 PM, in Jones 226, 5747 South Ellis Avenue

MILES STOUDENMIRE, Flatiron Institute

"Tensor Networks: From Quantum Physics to Applied Mathematics"

ORGANIZERS

RISI KONDOR, Associate Professor, Departments of Computer Science and Statistics

LEK-HENG LIM, Associate Professor, Department of Statistics

JONATHAN WEARE, Associate Professor, Department of Statistics and the James Franck Institute

SPRING QUARTER 2018

APRIL

TUESDAY, April 3, 2018, at 3:30 PM, in Ryerson 251, 1100 E. 58th Street

Joint meeting with the Theoretical Computer Science Seminar

LEONID GURVITS, Department of Computer Science, City College of New York

"A Poly-time DETERMINISTIC Algorithm for Simply Exponential Approximation of the Permanent of PSD Matrices and Other Cool Quantum Things"

THURSDAY, April 5, 2018, at 5:00 PM, in Jones 226, 5747 South Ellis Avenue

PANOS STINIS, Pacific Northwest National Laboratory

"Mesh Refinement and Coarse-Graining for Complex Systems"

THURSDAY, April 12, 2018, at 5:00 PM, in Jones 226, 5747 South Ellis Avenue

IRENE M. GAMBA, Department of Mathematics, The University of Texas at Austin

"Computational Deterministic Solvers for Chapman Kolmogorov Transport Equations for Binary Interactions"

MAY

THURSDAY, May 3, 2018, at 5:00 PM, in Jones 226, 5747 South Ellis Avenue

CHARLES DOERING, Center for the Study of Complex Systems (CSCS), University of Michigan

"Optimal Bounds and Extremal Trajectories for Time Averages in Nonlinear Dynamical Systems"

THURSDAY, May 10, 2018, at 5:00 PM, in Jones 226, 5747 South Ellis Avenue

MARTY GOLUBITSKY, Mathematical Biosciences Institute, Ohio State University

"Modeling by Networks"

THURSDAY, May 24, 2018, at 5:00 PM, in Jones 226, 5747 South Ellis Avenue

STEPHANE GAUBERT, Center of Applied Mathematics, Ecole Polytechnique

"Nonarchimedean Degenerations of Convex Programming — In Which Tropical Geometry Shows That Log-Barrier Interior Point Methods Are Not Strongly Polynomial"

THURSDAY, May 31, 2018, at 5:00 PM, in Jones 226, 5747 South Ellis Avenue

CHEN GREIF, Department of Computer Science, The University of British Columbia

"Iterative Solution of Saddle-Point Linear Systems"

WINTER QUARTER 2018

JANUARY

WEDNESDAY, January 10, 2018, at 2:30 PM, in Eckhart 133, 5734 S. University Avenue

Joint Seminar with the Department of Statistics

ROY LEDERMAN, The Program in Applied and Computational Mathematics, Princeton University

"Inverse Problems and Unsupervised Learning with Applications to Cryo-Electron Microscopy (cryo-EM)"

THURSDAY, January 11, 2018, at 5:00 PM, in Jones 226, 5747 South Ellis Avenue

CHRISTOPHER JONES, Department of Mathematics, The University of North Carolina

"Issues in Data Assimilation for Ocean and Sea-ice Models"

WEDNESDAY, January 17, 2018, at 2:30 PM, in Eckhart 133, 5734 S. University Avenue

Joint Seminar with the Department of Statistics

JU SUN, Department of Mathematics, Stanford University

"When Are Nonconvex Optimization Problems Not Scary?"

FRIDAY, January 19, 2018, at 2:30 PM, in Eckhart 133, 5734 S. University Avenue

Joint Seminar with the Department of Statistics

DANIEL SANZ-ALONSO, The Division of Applied Mathematics, Brown University

"Statistical and Algorithmic Robustness in Data Assimilation, Inverse Problems, and Machine Learning"

THURSDAY, January 25, 2018, at 5:00 PM, in Jones 226, 5747 South Ellis Avenue

ELINA ROBEVA, Department of Mathematics, Massachusetts Institute of Technology

"Maximum Likelihood Density Estimation under Total Positivity"

MONDAY, January 29, 2018, at 2:30 PM, in Eckhart 133, 5734 S. University Avenue

Joint Seminar with the Department of Statistics

KUI REN, Department of Mathematics and The Institute for Computational Engineering and Sciences, The University of Texas at Austin

"Hybrid Imaging with Nonlinear Physics: Modeling, Simulation and Analysis"

FEBRUARY

THURSDAY, February 8, 2018, at 5:00 PM, in Jones 226, 5747 South Ellis Avenue

DIMITRIS GIANNAKIS, Center for Atmosphere Ocean Science (CAOS), Courant Institute of Mathematical Sciences

"Spatiotemporal Pattern Extraction by Spectral Analysis of Vector-valued Observables"

THURSDAY, February 15, 2018, at 5:00 PM, in Jones 226, 5747 South Ellis Avenue

JOSEPH LANDSBERG, Department of Mathematics, Texas A&M University

"Quantum Max Flow v. Quantum Min Cut and the Geometry of Matrix Product States"

THURSDAY, February 22, 2018, at 5:00 PM, in Jones 226, 5747 South Ellis Avenue

ZHIZHEN JANE ZHAO, Department of Electrical and Computer Engineering Coordinated Science Laboratory, University of Illinois at Urbana-Champaign

"Multi-segment Reconstruction with Invariant Features"

MARCH

THURSDAY, March 1, 2018, at 5:00 PM, in Jones 226, 5747 South Ellis Avenue

CHARLES SMART, Department of Mathematics, University of Chicago

"The Abelian Sandpile and Circle Packings"

AUTUMN 2017

OCTOBER

THURSDAY, October 5, 2017, at 5:00 PM, in Jones 226, 5747 South Ellis Avenue

AGNES SZANTO, Department of Mathematics, North Carolina State University

"Certification of Approximate Roots of Ill-Posed Polynomial Systems"

THURSDAY, October 12, 2017, at 5:00 PM, in Jones 226, 5747 South Ellis Avenue

YIYING TONG, Department of Computer Science and Engineering, Michigan State University

"Discrete Covariant Derivative of Vector Ffields on Triangle Meshes"

THURSDAY, October 19, 2017, at 5:00 PM, in Jones 226, 5747 South Ellis Avenue

GUILLAUME BAL, Departments of Statistics, Mathematics, and CAMI, The University of Chicago

"Topological Protection of Perturbed Edge States"

THURSDAY, October 26, 2017, at 5:00 PM, in Jones 226, 5747 South Ellis Avenue

IGOR MEZIC, Mechanical Engineering Department, University of California Santa Barbara

"Koopman Operator Theory, Computation and Applications"

NOVEMBER

THURSDAY, November 2, 2017, at 5:00 PM, in Jones 226, 5747 South Ellis Avenue

JOHN REINITZ, Departments of Statistics, Ecology and Evolution, Molecular Genetics & Cell Biology, University of Chicago

"Biological Implications of *SO*(2,1) Symmetry in Exact Solutions of the Chemical Master Equation for a Self-Repressing Gene"

THURSDAY, November 9, 2017, at 5:00 PM, in Jones 226, 5747 South Ellis Avenue

KATHERINE NEWHALL, Department of Mathematics, University of North Carolina, Chapel Hill

"Metastability of the Nonlinear Wave Equation"

THURSDAY, November 16, 2017, at 5:00 PM, in Jones 226, 5747 South Ellis Avenue

JOHNNY GUZMÁN, Department of Applied Mathematics, Brown University

"Finite Element Methods for Interface Problems"

**WEDNESDAY, November 22, 2017, at 12:30 PM, in Jones 226, 5747 South Ellis Avenue**

KIM-CHUAN TOH, Department of Mathematics, National University of Singapore

"Highly Efficient Algorithms for Solving Lasso-type Problems based on Second-order Sparsity"

THURSDAY, November 30, 2017, at 5:00 PM, in Jones 226, 5747 South Ellis Avenue

ARVIND MURUGAN, Department of Physics, The University of Chicago

"Internal Models of the External World"

### Other Seminars of Interest

- Algebraic Geometry Seminars
- Computational Neuroscience Seminars
- Computations in Science Seminars
- Department of Computer Science Seminars
- Department of Ecology and Evolution Seminars
- Department of Human Genetics Seminars
- Department of Mathematics Seminars
- Department of Public Health Sciences Seminars
- Department of Statistics Colloquium
- Econometrics and Statistics Workshop
- Institute for Genomics & Systems Biology
- Probability and Statistical Physics Seminars
- Stevanovich Center for Financial Mathematics Seminars
- Toyota Technological Institute Colloquium