Mon, 06 Dec 2010
12:00 -
13:00
SR1
Cusps of the Kaehler moduli space and stability conditions on K3 surfaces
Heinrich Hartmann
(Oxford University)
Abstract
We will state a theorem of Shouhei Ma (2008) relating the Cusps of the Kaehler moduli space to the set of Fourier--Mukai partners of a K3 surface. Then we explain the relationship to the Bridgeland stability manifold and comment on our work relating stability conditions "near" to a cusp to the associated Fourier--Mukai partner.
Wed, 19 Jan 2011
16:00 -
17:00
SR2
Conjugacy problem and conjugator length
Andrew Sale
(Oxford University)
Abstract
A brief survey of the above.
Tue, 30 Nov 2010
16:00 -
17:00
DH 3rd floor SR
Tue, 16 Nov 2010
16:00 -
17:00
DH 3rd floor SR
Tue, 09 Nov 2010
16:00 -
17:00
DH 3rd floor SR
Tue, 26 Oct 2010
16:00 -
17:00
DH 3rd floor SR
Tue, 02 Nov 2010
16:00 -
17:00
DH 3rd floor SR
Geoghegan stacks and finiteness properties of groups
Benno Kuckuck
(Oxford University)
Abstract
Geoghegan's stack construction is a tool for analysing groups
that act on simply connected CW complexes, by providing a topological
description in terms of cell stabilisers and the quotient complex,
similar to what Bass-Serre theory does for group actions on trees. We
will introduce this construction and see how it can be used to give
results on finiteness properties of groups.