Mechanics of elliptical JKR-type adhesive contact
Giudici, A
Vella, D
Griffiths, I
Journal of Physics D: Applied Physics
volume 58
issue 8
085301
(17 Dec 2024)
HYPERBOLIC MANIFOLDS THAT FIBRE ALGEBRAICALLY UP TO DIMENSION 8
Italiano, G
Martelli, B
Migliorini, M
Journal of the Institute of Mathematics of Jussieu
volume 23
issue 2
609-646
(10 Mar 2024)
A homogenised model for dispersive transport and sorption in a heterogeneous porous medium
Auton, L
Dalwadi, M
Griffiths, I
(15 Oct 2024)
Human brain changes after first psilocybin use
Lyons, T
Spriggs, M
Kerkelä, L
Rosas, F
Roseman, L
Mediano, P
Timmermann, C
Oestreich, L
Pagni, B
Zeifman, R
Hampshire, A
Trender, W
Douglass, H
Girn, M
Godfrey, K
Kettner, H
Sharif, F
Espasiano, L
Gazzaley, A
Wall, M
Erritzoe, D
Nutt, D
Carhart-Harris, R
Tue, 11 Feb 2025
16:00
16:00
C3
Homology and K-theory for self-similar group actions
Alistair Miller
(University of Southern Denmark)
Abstract
Self-similar groups are groups of automorphisms of infinite rooted trees obeying a simple but powerful rule. Under this rule, groups with exotic properties can be generated from very basic starting data, most famously the Grigorchuk group which was the first example of a group with intermediate growth.
Nekrashevych introduced a groupoid and a C*-algebra for a self-similar group action on a tree as models for some underlying noncommutative space for the system. Our goal is to compute the K-theory of the C*-algebra and the homology of the groupoid. Our main theorem provides long exact sequences which reduce the problems to group theory. I will demonstrate how to apply this theorem to fully compute homology and K-theory through the example of the Grigorchuk group.
This is joint work with Benjamin Steinberg.
One scholarship for students pursuing the DPhil in Mathematics who are eligible to pay overseas fees .
Mon, 11 Nov 2024
17:00
17:00
L1
The Brooke Benjamin Lecture in Fluid Dynamics: The Elusive Singularity
Professor Peter Constantin
(Princeton University)
Abstract
The Seventeenth Brooke Benjamin Lecture 2024
The Elusive Singularity
I will describe the open problems of singularity formation in incompressible fluids. I will discuss a list of related models, some results, and some more open problems.