Fri, 31 Jan 2025
12:00
South Mezz Circulation

Launch Party: Oxford Women and Non-Binary People in Maths Day 2025

Further Information

Join us for the launch of our conference `Oxford Women and Non-Binary People in Mathematics Day 2025: Pathways to Progress' - website and registration link available here https://www.oxwomeninmaths.co.uk/. We will have tea, coffee, and cake, and members of the conference committee will be around to tell you all about the event! Everyone welcome, regardless of their gender identity. 

Song of the Week: Can - Vitamin C

Can were part of the German Krautrock (a crass label from UK journalists that stuck) or Kosmische Musik (Cosmic Music) genre of which Kraftwerk are the best known, though it was about more than electronic music as Can demonstrate with their mix of styles and experiment.

If at first it is not your thing, stick with it because it will get you. Hard to believe that it is over 50 years old.

Graduate Teacher Recruitment Event – Tonbridge School

Tonbridge School is looking to recruit a number of Graduate Teachers to start at the school in September 2025. Details about the role, the school, and the market-leading package can be found in the attached job advert.
We are hosting an in-person event on Monday 27th January at Vincents Club from 19:00-21:00 for anyone interested in chatting to current staff about the role.  

Climate talk in the Department of Statistics

Professor David Stainforth, London School of Economics and Political Science - Climate prediction: what is it and what is achievable?

Friday 31st January, 11.00 am – 12 noon

Large Lecture Theatre, Department of Statistics

Fri, 02 May 2025

12:00 - 13:00
Quillen Room

Arithmetic of Hyperelliptic Curves in Residue Characteristic 2

Tim Gehrunger
(ETH Zurich)
Abstract
The stable reduction of a hyperelliptic curve encodes many of its arithmetic invariants, such as the curve's conductor, minimal discriminant and Galois representation. 
In the case of odd residue characteristic, these models may be classified via their cluster pictures, which provides an explicit way to compute the invariants.
In the talk, we will explain recent progress towards a similar result in residue characteristic 2. In particular, we use marked models of the projective line to classify all genus 2 curves in residue characteristic 2.
Fri, 24 Jan 2025

12:00 - 13:00
Common Room

Junior Algebra Social

Abstract

The Junior Algebra and Representation Theory Seminar will kick-off the start of Hilary Term with a social event in the common room. Come to catch up with your fellow students and maybe play a board game or two. Afterwards we'll have lunch together.

Elephant trunk wrinkles: a mathematical model of function and form
 Liu, Y Goriely, A Mihai, A Nonlinearity volume 38 (06 Feb 2025)
Thu, 13 Mar 2025
17:00
L3

Non-expanding polynomials

Tingxiang Zou
(University of Bonn)
Abstract

Let F(x,y) be a polynomial over the complex numbers. The Elekes-Ronyai theorem says that if F(x,y) is not essentially addition or multiplication, then F(x,y) exhibits expansion: for any finite subset A, B of complex numbers of size n, the size of F(A,B)={F(a,b):a in A, b in B} will be much larger than n. In fact, it is proved that |F(A,B)|>Cn^{4/3} for some constant C. In this talk, I will present a recent joint work with Martin Bays, which is an asymmetric and higher dimensional version of the Elekes-Rónyai theorem, where A and B can be taken to be of different sizes and y a tuple. This result is achieved via a generalisation of the Elekes-Szabó theorem.

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