The Colloquium is usually held from 3:30 to 4:20 p.m. on Fridays in Exploratory Hall, Room 4106, with refreshments beforehand at 3:00 p.m.

- February 13 ~
The Heisenberg group: geometry, analysis, and number theory

**Anton Lukyanenko**, University of Michigan

This talk is on Monday at 11:00 a.m. in room 3301 of Exploratory Hall. - February 14 ~
Rees-like Algebras and the Eisenbud-Goto Conjecture

**Jason McCullough**, Rider University

This talk is on Tuesday at 11:00 a.m. (in the usual room, 4106). - February 16 ~
Bayesian Filtering for Time-Varying Parameter Estimation in Biological Models

**Andrea Arnold**, North Carolina State University

This talk is on Thursday at 11:00 a.m. (in the usual room, 4106). - February 17 ~
Multiscale inverse problems for partial differential equations and applications to sonar imaging

**Christina Frederick**, Georgia Institute of Technology - February 20 ~
Hidden symmetries in geometry, arithmetic, and physics
>

**Brent Doran**, ETH

This talk is on Monday at noon (in the usual room, 4106). - February 24 ~
Learning manifolds from data

**Tyrus Berry**, George Mason University - March 3 ~ no talk. (department meeting.)
- March 24 ~
Kernel methods for Koopman mode analysis and prediction: Ergodic and skew-product systems

**Dimitris Giannakis**, Courant Institute of Mathematical Sciences - March 31 ~ no talk today. (AWM Professional Development Day.)
- April 21 ~ Basin entropy: a new tool to explore
uncertainty in dynamical systems

**Miguel Sanjuan**, Universidad Rey Juan Carlos

Today's colloquium is presented jointly with the Department of Physics and Astronomy at a slightly irregular time (3:00 - 4:15) and place (Exploratory Hall, room L003).

Please email Evelyn Sander (esander@gmu.edu) if you are interested in meeting with the speaker. - April 28 ~ no talk. (department meeting.)
- May 5 ~
Inductive tools for graphs (and matroids)

**Carolyn Chun**, United States Naval Academy

**Fall, 2016**

- September 9 ~
Symmetries of Knots

**Swatee Naik**, University of Nevada, Reno - September 23 ~
Playing with homotopy: does Khovanov homology lead to bouquets of spheres?

**Jozef Przytycki**, George Washington University - September 30 ~
How to make 3-D printed sculptures of 4-D things

**Henry Segerman**, Oklahoma State University - October 7 ~
To Replace or Not to Replace in Finite Population Sampling

**Daniel Q. Naiman**, Johns Hopkins University - October 14 ~
Uniform Algebras

**Carl Weisman** - October 28 ~
The Kazhdan-Lusztig polynomial of a matroid

**Max Wakefield**, United States Naval Academy - November 11 ~
Heads and Tails in a Klein-Gordon equation

**Svetlana Roudenko**, George Washington University

**Spring, 2016**

- February 12 ~
Lie algebras and the rational homotopy groups of a topological space

**Steve Halperin**, University of Maryland, College Park - February 26 ~
Erdos-Szekeres type theorems for planar convex sets

**T. Bisztriczky**, University of Calgary

- March 4 ~
Phase Retrieval using Structured Measurements

**Yi Kai Liu**, National Institute of Standards and Technology - March 25 ~
Phased matroids and matroids over hyperfields

**Laura Anderson**, Binghamton University - April 8 ~
Weighted composition operators on the space of analytic functions with derivative in the Hardy-Hilbert space

**Robert Allen**, University of Wisconsin, La Crosse - April 22 ~
Projection: A Unified Approach to Semi-Infinite Linear Optimization and Duality in Convex Programming

**Amitabh Basu**, Johns Hopkins University - April 29 ~
Mathematical Perseverance, or, Try to Hear What the Mathematics
Is Trying to Tell You

**George Andrews**, Pennsylvania State University

**Fall, 2015**

- August 28 ~How to sample a stochastic operator?

**Götz Pfander,**, Jacobs University Bremen - September 4 ~
Line tension of Lamuir-Blodgett films: theory and experiment

**Jay Alexander**, University of Maryland, College Park - September 11 ~
A flexible regression model for count data

**Kimberly Sellers**, Georgetown University - September 25 ~
The Atlas of Lie Groups and Representations

**Jeffrey Adams**, University of Maryland, College Park - October 2 ~
A survey of alternating permutations

**Richard Stanley**, Massachusetts Institute of Technology - October 9 ~
Shearer's Method in Ramsey Theory

**Jacques Verstraëte**, National Science Foundation - October 16 ~
Mean Minkowski Measures for Convex Sets and Grünbaum's Conjecture for Affine Diameters

**Gabor Toth**, Rutgers University, Camden - October 30 ~
Automated Conjecture-Making

**Craig Larson**, Virginia Commonwealth University - November 20 ~
Distance functions on computable graphs

**Jennifer Chubb**, University of San Francisco

**Spring, 2015**

- January 23 ~
Probabilistic Analysis of QuickSort: An Overview

**Jim Fill**, Johns Hopkins University - February 6 ~
Integral point in orbits of morphisms on curves

**Vijay Sookdeo**, Catholic University of America - February 13 ~
Elliptic sequences and Pfaffian Triples

**Michael Somos**, Georgetown University - February 20 ~
From Broken Circuits to Monte Carlo: Approximating
the Coefficients of the Chromatic Polynomial

**Yvonne Kemper**, National Institute of Standards and Technology - March 6 ~
A new nonmonotone spectral projected gradient method for semidefinite programming problem with log-determinant and l_1 norm objective function

**Mituhiro Fukuda**, Tokyo Institute of Technology - March 20 ~
Approximating the permanent

**Francis Sullivan**, IDA/Center for Computing Sciences - April 3 ~
Planar graphs are 9/2-colorable and have big independent sets

**Dan Cranston**, Virginia Commonwealth University - April 17 ~
Cellular automorphisms of embedded graphs and two mathematical applications

**Lowell Abrams**, George Washington University - April 24 ~
Multiple junctions in polycrystals

**David Caraballo**, Georgetown University

**Fall, 2014**

- August 29 ~
Combinatorial Reciprocity Theorems

**Matthias Beck**, San Francisco State University - September 5 ~
The discrete Morse theory of Cech and Delaunay complexes

**Herbert Edelsbrunner**, Institute of Science and Technology Austria - September 19 ~
Three-dimensional affine crystals

**Bill Goldman**, University of Maryland - September 26 ~
Novel Stochastic Methods in Biochemical Electrostatics

**Michael Mascagni**, Florida State University (currently, NIST) - October 3 ~
**Faculty Symposium**organized by our SIAM Student Chapter - October 17 ~
**Jack Edmonds**, University of Waterloo - October 24 ~
Enumeration in polytopes and Coxeter groups

**Lou Billera**, Cornell University - November 7 ~
Patterns in permutations

**Alex Burstein**, Howard University - December 5 ~
Decision Problems and Representations
**Ben McReynolds**, Purdue University