Thu, 27 Oct 2011

17:00 - 18:00
L3

Geometric triviality of the general Painlev\'e equations

Anand Pillay (Leeds)
Abstract

(Joint with Ronnie Nagloo.) I investigate algebraic relations between sets of solutions (and their derivatives) of the "generic" Painlev\'e equations I-VI, proving a somewhat weaker version of ``there are NO algebraic relations".

Thu, 20 Oct 2011

17:00 - 18:00
L3

Homogeneous structures and homomorphisms

Deborah Lockett (Leeds)
Abstract

After a short introduction to homogeneous relational structures (structures such that all local symmetries are global), I will discuss some different topics relating homogeneity to homomorphisms: a family of notions of 'homomorphism-homogeneity' that generalise homogeneity; generic endomorphisms of homogeneous structures; and constraint satisfaction problems.

Tue, 22 Nov 2011

15:45 - 16:45
L3

Representation theory of DAHAs

Alexei Oblomkov
(Massachusetts)
Abstract

In the talk I plan to overview several constructions for finite dimensional represenations of DAHA: construction via quantization of Hilbert scheme of points in the plane (after Gordon, Stafford), construction via quantum Hamiltonian reduction (after Gan, Ginzburg), monodromic construction (after Calaque, Enriquez, Etingof). I will discuss the relations of the constructions to the conjectures from the first lecture.

Mon, 17 Oct 2011
14:15
L3

Symmetries of SL(n) Hitchin fibres

Tamas Hausel
Abstract

In this talk we show how the computation of the group of components of Prym varieties of spectral covers leads to cohomological results on the moduli space of stable bundles originally due to Harder-Narasimhan. This is joint work with Christian Pauly.

Mon, 24 Oct 2011
14:15
L3

Fourier-Mukai transforms and deformations in generalized complex geometry

Justin Sawon
(University of North Carolina & Bonn)
Abstract

In this talk I will describe Toda's results on deformations of the category Coh(X) of coherent sheaves on a complex manifold X. They come from deformations of X as a complex manifold, non-commutative deformations, and gerby deformations (which can all be interpreted as deformations of X as a generalized complex manifold). Toda also described how to deform Fourier-Mukai equivalences, and I will present some examples coming from mirror SYZ fibrations.

 

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