Monochromatic products and sums in 2-colorings of N
Bowen, M Advances in Mathematics volume 462 (01 Feb 2025)
The Sprague-grundy function for some selective compound games
Beideman, C Bowen, M Müyesser, A Integers volume 20 1-22 (01 Jan 2020)
ONE-ENDED SPANNING TREES AND DEFINABLE COMBINATORICS
Bowen, M Poulin, A Zomback, J Transactions of the American Mathematical Society volume 377 issue 12 8411-8431 (01 Dec 2024)
Fri, 20 Feb 2026
16:00
L1

Where do you draw the (dividing) line?

Julia Wolf
(Cambridge)
Abstract
A longstanding classification programme in model theory aims to determine when a mathematical structure exhibits tame, structurally simple—as opposed to wild, intractable—behaviour. A key role is played by so-called dividing lines, i.e. properties of logical formulas (or theories) that separate these regimes. In this talk, we demonstrate how the lens of combinatorics has allowed us to gain new insight into higher-order dividing lines, drawing on examples in graphs and groups. We also explain how this perspective has led to advances in higher-order Fourier analysis and statistical learning.
 
This talk intends to be accessible to beginning graduate students in all areas of mathematics.


 

GSA SPARK 2025 is back, starting from  November 24th until the December 14th, 2025. This coding challenge is especially suited for first-year undergraduates from all STEM disciplines. Take part in 21 days of exciting chellenges, testing your maths and coding to the test. There are £5,000 worth of of daily prizes up for grabs and a £1000 grand prize for the overall winner.  Register at gsa-spark.com.

This year’s Atmospheric, Oceanic and Planetary Physics Open Day will take place online on Tuesday 2nd December 2025 from 1:30-4:00pm.

Join us online to meet supervisors as well as some of our postdocs, and hear brief talks on their research. There will also be drop-in sessions with supervisors and current students, with ample opportunity for you to ask questions.

The PhD students from the probability group are organising an event for master’s students interested in probability (and related areas) on 10th November at 5pm. The idea is that we all meet on the ground floor of the Statistics department and split into groups so that each table has 1-2 PhD students and a few master’s students.

Thinking about postgraduate study? Join the Department of Statistics on the 19th November for its annual Postgraduate Open Day, with sessions available in person and online. Hear from course directors about the DPhil, MSc in Statistical Science, and the StatML Centre for Doctoral Training, and meet current students and staff.

Tue, 25 Nov 2025

16:30 - 17:30
L3

An Adjoint Method for Optimization of the Boltzmann Equation

Prof. Russel Caflisch
Abstract

We present an adjoint method for optimization of the spatially inhomogeneous Boltzmann equation for rarefied gas dynamics. The adjoint method is derived using a "discretize then optimize" approach. Discretization (in time and velocity) is via the Direct Simulation Monte Carlo (DSMC) method, and adjoint equations are derived from an augmented Lagrangian.  The boundary conditions that are included in this analysis include spectral reflection, thermal reflection, and inflow boundary conditions. For thermal reflection, a "score function" is included as a statistical regularization. This is joint work with Yunan Yang (Cornell). This special seminar is jointly held with the Keble Complexity Research Cluster.

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