An improvement to the Kelley-Meka bounds on three-term arithmetic
progressions
Bloom, T
Sisask, O
(05 Sep 2023)
http://arxiv.org/abs/2309.02353v1
progressions
You will have seen the launch of the university-wide Employee Assistance Programme though Health Assured, offering services including counselling, guidance on personal, financial and legal matters, and managerial support to all Unive
Mon, 30 Oct 2023
16:30 -
17:30
L3
Elasto-plasticity driven by dislocation movement
Filip Rindler
(University of Warwick)
Abstract
This talk presents some recent progress for models coupling large-strain, geometrically nonlinear elasto-plasticity with the movement of dislocations. In particular, a new geometric language is introduced that yields a natural mathematical framework for dislocation evolutions. In this approach, the fundamental notion is that of 2-dimensional "slip trajectories" in space-time (realized as integral 2-currents), and the dislocations at a given time are recovered via slicing. This modelling approach allows one to prove the existence of solutions to an evolutionary system describing a crystal undergoing large-strain elasto-plastic deformations, where the plastic part of the deformation is driven directly by the movement of dislocations. This is joint work with T. Hudson (Warwick).
After a hiatus we are restarting the Oxford Research Software Development Network (RSDN) to provide an inclusive, informal community group at Oxford for anyone interested in software development within academia. The 1st meeting is scheduled for 12:00 - 13:30 on Wednesday 20th September 2023 and will be hosted at the Doctoral Training Center (DTC), see address below.
Reply to the comment on "Quantum priniple of relativity"
Dragan, A
Ekert, A
(30 Jun 2022)
Sometimes a piece of music is so familiar you don't listen to it. Sergei Rachmaninoff's second piano concerto is one example, not least because of its appearance in films and other artists' work. But forget all that and listen to a romantic masterpiece. This is the adagio played by Georgian pianist Khatia Buniatishvili.
PS: Sergei is 150 this year.
Scattering on self-dual Taub-NUT
Adamo, T
Bogna, G
Mason, L
Sharma, A
(07 Sep 2023)
http://arxiv.org/abs/2309.03834v1
Parameter identifiability and model selection for partial differential equation models of cell invasion
Liu, Y
Suh, K
Maini, P
Cohen, D
Baker, R
(04 Sep 2023)
Coboundary expansion and Gromov hyperbolicity
Kielak, D
Nowak, P
(12 Sep 2023)
http://arxiv.org/abs/2309.06215v1