Seminars without (*) are in the Maths Seminars archive; the others are hosted on external websites or have no web presence.
A stationary subset $S$ of a regular cardinal $\lambda$ reflects if $S\cap\delta$ is stationary in $\delta$ for some $\delta<\lambda$. In this talk we will sketch the core ideas behind ancestral forcing, and obtain models of stationary reflection at the successor […]
This talk continues the previous (Stationary reflection using ancestrally forced conditions) talk, and explains the machinery in more detail. Aimed for those familiar with Prikry-type forcings.
Semi-supervised learning (SSL) is the problem of finding missing labels from a partially labelled data set. The heuristic one uses is that “similar feature vectors should have similar labels”. The notion of similarity between feature vectors explored in this talk […]
Carnot groups play a role in subRiemannian geometry analogous to that of Euclidean spaces in Riemannian geometry. Indeed, they arise as metric tangents of equiregular sub-Riemannian manifolds. Their group structure and homogeneous dilations also lead to an intrinsic notion of […]
TBA