Venue Date Speaker and Affiliation University of Edinburgh 23 Jan 2026 Alison Etheridge(University of Oxford) Heriot-Watt University 20 Feb 2026 Ulisse Stefanelli(University of Vienna) University of St Andrews 27 March 2026 Mikaela Iacobelli(ETH Zürich) University of Aberdeen 22 May 2026 Heather Harrington(University of Oxford)
Encoding Fourier multipliers in matrix algebras Fourier multipliers are among the most important operators in analysis. They act on a given function $f$ by pointwise multiplication of its Fourier transform with a fixed function $f (m f pt )^$. This action can be vastly extended using more general notions of Fourier transform via group representation theory. In this talk, we […]
Bi-Lipschitz embeddings and optimal partial transport A bi-Lipschitz embedding of a metric space X into another, Y, preserves relative distances between points, up to a multiplicative error. Usually, one seeks a bi-Lipschitz embedding when X is a metric space of interest, and Y has good geometric properties, since the embedding allows X to inherit these properties. A classical example is […]
The Torelli group: a quick tour In this talk we will give a gentle introduction to the Torelli group of a surface. The talk will survey some of its algebraic properties as well as its connection with low-dimensional topology. Along the way we will highlight some seminal work of Joan Birman and Dennis Johnson, among others. Note: due to technical issues, […]
Maths’ Greatest Unsolved Puzzles While mathematicians are undoubtedly brilliant, and their work is used in all kinds of amazing scientific and technological discoveries, there are still questions they can’t answer. Every mathematical question is a puzzle to be solved, and while there’ll be plenty of puzzles for you to chew on, we’ll also discuss some of the questions that still […]
Orthogonal Sobolev polynomials and spectral methods for boundary value problems on the unit ball Our main objective in this talk is to demonstrate how orthogonal Sobolev polynomials emerge as a useful tool within the framework of spectral methods for boundary-value problems. The solution of a boundary-value problem for a stationary Schrödinger equation on the unit ball can be studied from […]
Exponential asymptotics and applied mathematics Divergent series are the invention of the devil, and it is shameful to base on themany demonstration whatsoever.” – N. H. Abel.The lecture will introduce the concept of an asymptotic series, showing how useful divergentseries can be, despite Abel’s reservations. We will then discuss Stokes’ phenomenon, wherebythe coefficients in the series appear to change discontinuously. […]
Seeing is deceiving: The mathematics of visual illusions Illusions have been a constant source of amusement but they are also a unique gateway into understanding the way we perceive the world and how the brain processes information. The simplest visual illusions often involve a primary element—be it a line or a circle—that undergoes deformation or displacement due to the influence […]
Layer potentials – quadrature error estimates and approximation with error control When numerically solving PDEs reformulated as integral equations, so-called layer potentials must be evaluated. The quadrature error associated with a regular quadrature rule for evaluation of such integrals increases rapidly when the evaluation point approaches the surface and the integrand becomes sharply peaked. Error estimates are needed to determine […]
The AI Mathematician We argue how AI can assist mathematics in three ways: theorem-proving,conjecture formulation, and language processing.Inspired by initial experiments in geometry and string theory in 2017, we summarize how thisemerging field has grown over the past years, and show how various machine-learningalgorithms can help with pattern detection across disciplines ranging from algebraicgeometry to representation theory, to combinatorics, and […]