Past events
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Algebra seminar - Jan Grabowski
13:00 - 14:00 6 May 2025
Title: Categorifying and quantizing cluster ensembles Abstract: Cluster ensembles were introduced by Fock and Goncharov to encode seed data for cluster algebras in terms of certain lattices, enabling the definition of cluster varieties by gluing the associated tori. We will explain joint work with Pressland...
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Manchester Number Theory Seminar - Yichen You
14:00 - 15:00 6 May 2025
Speaker: Yichen You (Durham) Title: TBA Abstract: TBA Room: Frank Adams 1
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Logic seminar: Andrew Pitts
14:00 - 15:00 30 April 2025
Title: Heyting Algebras and Higher-Order Logic Abstract: Every logical theory gives rise to a Lindenbaum-Tarski algebra of truth values, whose underlying set is the theory's sentences quotiented by provability in the theory. For theories in classical first-order logic, the algebras that arise are exactly...
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Algebra seminar - Jay Taylor
13:00 - 14:00 29 April 2025
Title: Modular Reduction of Nilpotent Orbits Abstract: If () is a finite reductive group, where is a prime power, then Lusztig has defined a set of complex irreducible characters UCh(()) called the unipotent characters of the group. Somewhat remarkably these characters are parameterised independently...
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Number Theory Seminar - Jessica Alessandri
14:00 - 15:00 29 April 2025
Speaker: Jessica Alessandri (Bath) Title: The Integral Hilbert Property on some degree-2 del Pezzo surfaces. Abstract: In this talk I will consider a Diophantine equation known also as "Fermat's near miss". Studying the existence and abundance of integral solutions of this kind of equations can be...
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