Wed, 04 Jun 2025
17:00
Lecture Theatre 1, Mathematical Institute, Radcliffe Observatory Quarter, Woodstock Road, OX2 6GG

Responsible modelling and the ethics of mathematics for decision support - Erica Thompson

Erica Thompson
(University College London)
Further Information

Mathematical models are used to inform decisions across many sectors including climate change, finance, and epidemics. But models are not perfect representations of the real world – they are partial, uncertain and often biased.  What, then, does responsible modelling look like?  And how can we apply this ethical framework to new AI modelling methods?

Erica Thompson is Associate Professor of Modelling for Decision Making at UCL’s Department of Science, Technology, Engineering and Public Policy (STEaPP), and the author of 'Escape From Model Land' (2022).

Please email @email to register to attend in person.

The lecture will be broadcast on the Oxford Mathematics YouTube Channel on Wednesday 25 June at 5-6pm and any time after (no need to register for the online version).

The Oxford Mathematics Public Lectures are generously supported by XTX Markets.

Fri, 23 May 2025

12:00 - 13:00
Quillen Room

TBD

Girish Vishwa
(University of Edinburgh)
Abstract

TBD

Wed, 21 May 2025
12:00
C1

On the converse of Pansu’s differentiability theorem

Andrea Merlo
(Universidad del País Vasco)
Abstract

In this talk I will present two new results concerning differentiability of Lipschitz maps between Carnot groups. The former is a suitable adaptation of Pansu-Rademacher differentiability theorem to general Radon measures. More precisely we construct a suitable bundle associated to the measure along which Lipschitz maps are differentiable, very much in the spirit of the results of Alberti-Marchese. The latter is the converse of Pansu’s theorem. Namely, let G be a Carnot group and μ a Radon measure on G. Suppose further that every Lipschitz map between G and H, some other Carnot group, is Pansu differentiable μ-almost everywhere. We show that μ must be absolutely continuous with respect to the Haar measure of G. This is a joint work with Guido De Philippis, Andrea Marchese, Andrea Pinamonti and Filip Rindler.

This new sub-Riemannian result will be an excuse to present and discuss the techniques employed in Euclidean spaces to prove the converse of Rademacher's theorem.

Tue, 20 May 2025

16:00 - 19:00
Glen Callater Room, H B Allen Centre, Keble College

Complexity Cluster Research Workshop

Abstract

The Complexity Cluster Event Organisers Professor Gui-Qiang G. Chen, Professor Helen Byrne, and Professor Mohit Dalwadi, cordially invite you to attend a Complexity Cluster Research Workshop on Tuesday, 20th May 2025, in the Glen Callater Room, H B Allen Centre, Keble College.

Complexity Cluster Research Workshop
Venue: Glen Callater Room, H B Allen Centre, Keble College
Date: Tuesday, 20th May 2025
Organisers: 
Professor Helen Byrne
Professor Gui-Qiang G. Chen
Professor Mohit Dalwadi
 

Programme:
4.00pm ̶ 4.15pm: Coffee, Drinks & Refreshments
4:15pm ̶ 4:40pm: Professor Didier Bresch (CNRS and Universite Savoie Mont-Blanc, France): Mathematical Topics around Granular Media
4:45pm – 5:10pm: Dr. Keith Chambers (Mathematical Institute, University of Oxford): Structured Population Models to Explore Lipid-Driven Macrophage Heterogeneity in Early Atherosclerotic Plaques
5:15pm ̶ 5:40pm: Coffee, Drinks & Refreshments
5:40pm ̶ 6:05pm: Dr. Tara Trauthwein (Department of Statistics, University of Oxford): Approximation Results for Large Networks
6:05pm-6:30pm: Isaac Newell (OxPDE, Mathematical Institute, University of Oxford): The Gauss Equation for Isometric Embeddings of Regularity in W1+2/3,3∩ C1
6:35pm-7:00pm: Discussion

For abstracts please click the file here: Complexity-Cluster_Workshop_20250212_Final_0.pdf

A review of the tangent space in sub-Finsler geometry and applications to the failure of the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e21" altimg="si2.svg"><mml:mi mathvariant="sans-serif">CD</mml:mi></mml:math> cond
 Magnabosco, M Rossi, T Indagationes Mathematicae (May 2025)
Rate of Convergence for a Nonlocal-to-local Limit in One Dimension
 Carrillo, J Elbar, C Fronzoni, S Skrzeczkowski, J (11 May 2025) http://arxiv.org/abs/2505.07015v1

Florence Nightingale Lecture 2025

Professor Po-Ling Loh, University of Cambridge - Differentially private M-estimation via noisy optimization

Thursday 29th May, 3.15 pm - 4.30 pm

L2, Mathematical Institute, Andrew Wiles Building

Please note, a drinks reception will be held in the ground floor social area, Department of Statistics, 24-29 St Giles.

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