Past geometry seminars
The geometry seminar meets at 3pm on Wednesdays in Meeting Room 13, Pavilion E (the "Geometry Institute").
On some days there are two talks; the second talk is at 4.30pm.
Organizers:
A Corti,
A Kovalev,
B Totaro.

Wednesday 26 January

Andrew Kresch (Warwick)
Formulas for degeneracy loci of quivers

Wednesday 2 February

Max Karoubi (Paris)
Quasicommutative cochains and homotopy types

Wednesday 9 February

Kevin Costello (Imperial)
GromovWittentype invariants from CalabiYau Ainfinity categories

Wednesday 16 February

Gregory Berhuy (Nottingham)
Canonical dimension of algebraic groups

Wednesday 23 February

Vladimir Matveev (Freiburg)
Proof of the projective LichnerowiczObata conjecture

Wednesday 2 March

Andrew Ranicki (Edinburgh)
The signature modulo 4 and 8

Wednesday 9 March

Ryushi Goto (Osaka)
Deformations and global smoothing of CalabiYau, hyperkahler,
G_2, and Spin(7) structures

Wednesday 16 March

3pm: Angelo Vistoli (Bologna)
The Chow ring of the stack of nodal curves of genus 0,
after Damiano Fulghesu

4.30pm: Maria Basterra (New Hampshire)
Rings and modules in stable homotopy theory

Wednesday 23 March

Ian Hambleton (McMaster)
Multiplicativity mod 4 of signatures in fibre bundles
