Mon, 23 Feb 2026

15:30 - 16:30
L3

Loop soups in 2 + epsilon dimensions

Prof. Pierre-François Rodriguez
(University of Cambridge )
Abstract

The talk will be about a natural percolation model built from the so-called Brownian loop soup. We will give sense to studying its phase transition in dimension d = 2 + epsilon, with epsilon varying in [0,1], and discuss how to perform a rigorous „epsilon-expansion“ in this context. Our methods give access to a whole family of universality classes, and elucidate the behaviour of critical exponents etc. near the (lower-)critical dimension, which for this model is d=2. 

Based on joint work with Wen Zhang.

Wed, 25 Feb 2026
12:45
TCC VC

Positive Geometry and Canonical Forms

Catherine Notman
Abstract
In recent years an unexpected connection has been found between polytopes in complex projective varieties and the physics of scattering amplitudes. In this talk I will discuss the Grassmannian generalisation of simplexes and polytopes, called positive geometries, and their associated canonical forms. Adding a generalised idea of convexity results in the Amplituhedron, whose canonical form exactly corresponds to scattering amplitudes in N=4 super Yang-Mills theory.
Topology identifies concurrent cyclic processes in single-cell transcriptomics and androgen receptor function
 Maggs, K Youssef, M Pulver, C Isma, J Nguyên, T Arzt, M Karthaus, W Harrington, H Hess, K Dotto, G
On the Parallels Between Minimal Surfaces and Einstein Four-Manifolds
 Beard, M Journal of Geometry and Physics 105801-105801 (Feb 2026)

Postdoctoral Research Associate in Data-driven Modelling of Collective Cell Behaviour

 

We invite applications for an outstanding postdoctoral research associate in data-driven modelling of collective cell behaviour to work with Professor Ruth Baker at the Mathematical Institute, University of Oxford. This is a 24-month, fixed-term position, funded by the Simons Foundation. The start-date for this position is flexible, but September-November 2026 is preferred.

Funded PhD position at University College Dublin

A funded PhD position is available at University College Dublin, for the project "Individual bovine variation in the transmission and disease of Mycobacterium bovis" starting in September 2026.  

The project is supervised by Dr Miriam Casey (School of Veterinary Medicine) and Dr Michael Fop (School of Mathematics and Statistics). 

Short Stories 2

As we know, our students travel from all over the world to study mathematics in Oxford; our current first years are from 34 different countries.

Angie clocks up over 10,000 miles each way. Ain't it good to be alive?

Abstract P4-03-30: Patient characteristics, treatment patterns, and clinical outcomes associated with tucatinib therapy in HER2-positive metastatic breast cancer
 Kaufman, P Neuberger, E Hsu, L Schwartz, N Bartley, K Wang, S Liu, Y Blahna, M Pittner, B Wong, G Anders, C Cancer Research volume 83 issue 5_Supplement p4-03-30-p4-03-30 (01 Mar 2023)
Dynamical Edge Modes and Entanglement in Maxwell Theory
 Ball, A Law, Y Wong, G (30 Sep 2024)
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