Triangle Seminars
Monday, 15 Dec 2025
A relationship between gauge theories with finite and continuous gauge groups
📍 London
Pavel Putrov
(ICTP)
Abstract:
In my talk, I will discuss certain relations between 3-dimensional
topological gauge theories with continuous and finite gauge groups,
commonly known as Chern-Simons and Dijkgraaf-Witten theories
respectively. The relations of this form appear when the continuous and
finite gauge groups are the same algebraic group considered over complex
numbers or a finite field respectively. In this talk I will focus on the
SU(2) example.
Please look at other details on our web post https://lims.ac.uk/
In my talk, I will discuss certain relations between 3-dimensional
topological gauge theories with continuous and finite gauge groups,
commonly known as Chern-Simons and Dijkgraaf-Witten theories
respectively. The relations of this form appear when the continuous and
finite gauge groups are the same algebraic group considered over complex
numbers or a finite field respectively. In this talk I will focus on the
SU(2) example.
Please look at other details on our web post https://lims.ac.uk/
Posted by: JUVEN WANG
Wednesday, 17 Dec 2025
Black hole interiors, arithmetic chaos and primon gases
📍 London
Marine De Clerck
(Cambridge University)
Abstract:
Seminal work by Belinskii, Khalatnikov, Lifshitz (BKL) and others some 50 years ago lead to an analytic understanding of the generic behaviour of solutions to Einstein’s equations in the approach to certain cosmological singularities. The dynamics is chaotic and can elegantly be reformulated in terms of `cosmological billiards’, in which the peculiar symmetries of the model become apparent, with deep connections to number theory. In this talk, I want to give an overview of recent progress in this direction.
Seminal work by Belinskii, Khalatnikov, Lifshitz (BKL) and others some 50 years ago lead to an analytic understanding of the generic behaviour of solutions to Einstein’s equations in the approach to certain cosmological singularities. The dynamics is chaotic and can elegantly be reformulated in terms of `cosmological billiards’, in which the peculiar symmetries of the model become apparent, with deep connections to number theory. In this talk, I want to give an overview of recent progress in this direction.
Posted by: Andrew Svesko