Past events
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Logic seminar: Alex Kavvos
15:00 - 16:00 12 March 2025
Title: Two-dimensional Kripke Semantics Abstract: The study of modal logic has witnessed tremendous development following the introduction of Kripke semantics. However, recent developments in type theory have led to a second way of studying modalities, namely through their categorical semantics. We...
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Algebra seminar - Patricia Medina-Capilla
14:00 - 15:00 11 March 2025
Title: The second maximal subgroups of the almost simple groups Abstract: In 2018, Lucchini, Marion, and Tracey showed that every maximal subgroup of an almost simple group is 5-generated, lowering the previously known bound of 6. Naturally, one can ask the same about second maximal subgroups of almost...
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Number Theory Seminar - Alexandros Konstantinou
15:00 - 16:00 11 March 2025
Speaker: Alexandros Konstantinou Title: The order of the Tate--Shafarevich group modulo squares Abstract: We present a method for decomposing abelian varieties up to isogeny using group actions. As an application, we show that given a square-free natural number n, there exists an abelian variety with...
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Dynamical Systems and Analysis Seminar - Andrew Mitchell
10 March - 1 July 2025
Speaker: Andrew Mitchell (The Open University) Title: Classifying intrinsic ergodicity for random substitution systems Abstract: Classifying the measures of maximal entropy for a given dynamical system is an important problem in ergodic theory. In particular, one is often interested in whether the...
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Manchester Geometry Seminar - Alexander Veselov
15:00 - 16:00 10 March 2025
Speaker: Dr Alexander Veselov (Loughborough) Title: Differential algebra of polytopes and inversion formulas Abstract: For any formal power series, the coefficients of its compositional inverse are certain polynomials in the coefficients of the original power series. Remarkably these polynomials can...
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