Café π news - Veganuary

Café π is running a weekly Veganuary special for the whole month of January! 

Monday 19 – Friday 23: free alternative milks with all hot and iced drinks

Monday 26 – Friday 30: buy one, get one half price on all vegan cakes and pastries

The Café is situated on the Mezzanine floor and is open from 8:30 – 16:15 Monday to Friday. 

Week 0 Student Bulletin

MI

 

Welcome back to Oxford! 

We hope you had a lovely break, and are looking forward to everything that Hilary Term will bring.

Read on for details on becoming a Nightline volunteer, the first Public Lecture of 2026 and several graduate study opportunities!

Detecting Toxic Flow
 Cartea, Á Duran Martin, G Sanchez Betancourt, L Quantitative Finance
Singularities of Fitzpatrick and convex functions
 Kramkov, D Sirbu, M Journal of Convex Analysis volume 31 issue 3 827-846 (01 Jul 2024)
Equivariant localization for D=5 gauged supergravity
 Benetti Genolini, P Gauntlett, J Jiao, Y Park, J Sparks, J Journal of High Energy Physics
Localizing punctures in M-theory
 Couzens, C Lüscher, A Sparks, J Journal of High Energy Physics
Mon, 09 Mar 2026
15:30
L5

Quasihomomorphisms to real algebraic groups

Sam Hughes
(Rheinische Friedrich-Wilhelms-Universität Bonn)
Abstract

A quasihomomorphism is a map that satisfies the homomorphism relation up to bounded error. Fujiwara and Kapovich proved a rigidity result for quasihomomorphisms taking values in discrete groups, showing that all quasihomomorphisms can be built from homomorphisms and sections of bounded central extensions. We study quasihomomorphisms with values in real linear algebraic groups, and prove an analogous rigidity theorem.  Based on joint work with Sami Douba, Francesco Fournier Facio, and Simon Machado.

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