Homological link invariants from categories of A-branes
Abstract
In recent work, Aganagic proposed a categorification of quantum link invariants based on a category of A-branes. The theory is a generalization of Heegaard–Floer theory from gl(1|1) to arbitrary Lie algebras. It turns out that this theory is solvable explicitly and can be used to compute homological link invariants associated to any minuscule representation of a simple Lie algebra. This invariant coincides with Khovanov–Rozansky homology for type A and gives a new invariant for other types. In this talk, I will introduce the relevant category of A-branes, explain the explicit algorithm used to compute the link invariants, and give a sketch of the proof of invariance. This talk is based on 2305.13480 with Mina Aganagic and Miroslav Rapcak and work in progress with Mina Aganagic and Ivan Danilenko.
13:00
Machine Learning and Calabi-Yau Manifolds
Abstract
: With motivation from string compactifications, I will present work on the use of machine learning methods for the computation of geometric and topological properties of Calabi-Yau manifolds.
Oxford Mathematician Alain Goriely has been appointed Gresham Professor of Geometry. The Professor of Geometry at Gresham College, London, is one of ten lecturers whose roles are to give free educational lectures to the general public, the purpose for which the college was founded in 1597 in the will of Thomas Gresham. In total there are over 130 public lectures a year, all of which are online.
'Show Me the Maths' gets down to the detail of the mathematics that takes place round here. These short, 90-second films, deliberately display the complexity of our subject. They span fundamental mathematics such as quasi-coherent sheaves and Dirichlet L-functions while also taking in our work in applied mathematics, such as the modelling of cancer treatment and efforts to make complex mathematics accessible to companies who need to use it in product development.
13:00
Fivebrane Stars
Abstract
(HOLGRIM)