Mon, 12 Oct 2026
15:30
L5

Group rings, cellular complexity, and hyperbolic geometry

Grigori Avramidi
Abstract
I'll discuss lower bounds on cell structures of hyperbolic manifolds in terms of injectivity radius, and also parametrized versions of such results. The main algebraic input into such lower bounds is a freedom theorem for ideals in group rings of hyperbolic groups. 
If time permits, I may also discuss some questions about extensions of such results to higher rank. Joint work with Thomas Delzant. 
 
A Universal Nearest-Neighbor Estimator for Intrinsic Dimensionality
 Ong, E Bobrowski, O Reinert, G Skraba, P IEEE Transactions on Pattern Analysis and Machine Intelligence volume PP issue 99 1-11 (16 Sep 2026) doi:10.1109/tpami.2026.3734737

Celebrate Women in Tech Week

Women in Tech Week (12-16 October 2026) celebrates the women shaping technology across the University. Whether you work directly in technology, use digital tools as part of your role, or are simply curious about where technology could take you, there’s an opportunity to connect, learn and be inspired.

Demographic changes and behavioural responses shape vulnerability to infectious disease outbreaks
 Evans, A Hart, W Jung, E Nah, K Bonic-Babic, K Jung, S Thompson, R PLoS Computational Biology
Demographic changes and behavioural responses shape vulnerability to infectious disease outbreaks
 Evans, A Hart, W Jung, E Nah, K Bonic-Babic, K Jung, S Thompson, R PLoS Computational Biology
Demographic changes and behavioural responses shape vulnerability to infectious disease outbreaks
 Evans, A Hart, W Jung, E Nah, K Bonic-Babic, K Jung, S Thompson, R PLoS Computational Biology
Demographic changes and behavioural responses shape vulnerability to infectious disease outbreaks
 Evans, A Hart, W Jung, E Nah, K Bonic-Babic, K Jung, S Thompson, R PLoS Computational Biology

Postdoctoral Research Associate in Applied Mathematics and Computational Neuroscience

We are currently inviting applications for a Postdoctoral Research Associate to work with Professor Lida Kanari at the Mathematical Institute, University of Oxford. This is a 1-year, fixed-term position, funded by a research grant from the UKRI, MRC. The starting date of this position is flexible with an earliest start date of 1st January 2027. We particularly welcome applications from individuals who are able to start between 1st January 2027 and 1st June 2027.

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