Hyperbolicity and Model-Complete Fields
Szachniewicz, M
Ye, J
International Mathematics Research Notices
volume 2025
issue 4
rnaf019
(21 Feb 2025)
For those of you (all?) who follow our social media we have now joined Bluesky as 'oxfordmathematics', though we are not leaving X as we don't want to abandon nearly 70,000 followers.
We haven't posted on Bluesky yet, not least because much of our content is now video and Bluesky has a small video file size. But we will.
Warwick Mathematics Institute, University of Warwick
24-25 April 2025
Registration open until 28 March
Higher order Lipschitz Sandwich theorems
Lyons, T
McLeod, A
Journal of the London Mathematical Society
volume 111
issue 3
(07 Mar 2025)
Thu, 08 May 2025
14:00
14:00
(This talk is hosted by Rutherford Appleton Laboratory)
Multilevel Monte Carlo Methods with Smoothing
Aretha Teckentrup
(University of Edinburgh)
Abstract
Parameters in mathematical models are often impossible to determine fully or accurately, and are hence subject to uncertainty. By modelling the input parameters as stochastic processes, it is possible to quantify the uncertainty in the model outputs.
In this talk, we employ the multilevel Monte Carlo (MLMC) method to compute expected values of quantities of interest related to partial differential equations with random coefficients. We make use of the circulant embedding method for sampling from the coefficient, and to further improve the computational complexity of the MLMC estimator, we devise and implement the smoothing technique integrated into the circulant embedding method. This allows to choose the coarsest mesh on the first level of MLMC independently of the correlation length of the covariance function of the random field, leading to considerable savings in computational cost.
Please note; this talk is hosted by Rutherford Appleton Laboratory, Harwell Campus, Didcot, OX11 0QX
Wasserstein distributional adversarial training for deep neural networks
Bai, X
He, G
Jiang, Y
Obloj, J
(13 Feb 2025)
Gas-induced bulging in pouch-cell batteries: a mechanical model
Giudici, A
Chapman, S
Please, C
Journal of Power Sources
volume 640
(18 Mar 2025)
Multiple scales homogenisation of a porous viscoelastic material with rigid inclusions: application to lithium-ion battery electrodes
Foster, J
Galvis, A
Protas, B
Chapman, S
Journal of the Mechanics and Physics of Solids
volume 199
(28 Feb 2025)
The Centre for Teaching and Learning invites staff to apply for the new Oxford Teaching, Learning and Educational Leadership Recognition Scheme, following its successful reaccreditation by Advance HE. The new scheme includes a strong emphasis on recognition and educational leadership, and is designed for staff who teach and support learning to achieve fellowships of the Higher Education Academy.