Meetings of the COW seminar in 1999-2000

Details of the activities of the COW this year may be found on the COW homepage.

• Oxford, Thursday 14th October 1999
  2:00 Nigel Hitchin (Oxford): The geometry of 3-forms and threefolds with trivial canonical bundle
  4:15 Yura Zarhin (Moscow): Hyperelliptic Jacobians without complex multiplication

• Cambridge, Thursday 28th October 1999
  2:00 Mark Gross (Warwick): Topological mirror symmetry
  4:00 Jan Wierzba (Cambridge): Contractions from symplectic varieties

• London, Thursday 11th November 1999
  2:00 Nick Shepherd-Barron (Cambridge): Isomorphism classes in local moduli spaces
  3:10 Paul Seidel (Princeton): Floer cohomology and the Picard-Lefschetz formula
  4:30 Alexei Skorobogatov (London): Rational points on diagonal cubic surfaces

• Bath, Thursday 25th November 1999
  2:15 Dominic Joyce (Oxford): A new construction of compact 8-manifolds with holonomy Spin(7)
  4:00 Peter Swinnerton-Dyer (Cambridge): Weak Approximation and R-equivalence on cubic surfaces

• Nottingham, Thursday 27th January 2000
  2:00 W. Crawley-Boevey (Leeds): Quivers and related singularities
  3:15 Keum JongHae (Seoul): How to compute the automorphism groups of K3 surfaces

• Oxford, Thursday 17th February 2000
  3:00 Gavin Brown (Oxford): Mori flips by explicit deformation of Gorenstein singularities
  5:00 Shigeru Mukai (Nagoya): Euler numbers and the geometry of the Verlinde formulas

• London, Thursday 9th March 2000
  2:00 Simon Donaldson (London): Theta functions and the blowup formula for instanton invariants
  4:00 Rob de Jeu (Durham): The rank conjecture on the homology of general linear groups

• COW - Calf Workshop, Warwick, 28th-30th March 2000
  • Tuesday 28th March
    2:00 Miles Reid (Warwick): Varieties and rings
    4:00 Gavin Brown (Oxford): Other people's Gorenstein deformations

  • Wednesday 29th March
    10:00 Christian Pauly (Nice): Dualities between generalized theta functions
    12:00 Alastair Craw (Warwick): The McKay correspondence for A-Hilb(C³)
    2:00 Alastair King (Bath): G-Hilb or not G-Hilb, that is the question
    4:00 Balazs Szendroi (Warwick): Torelli problems with group action

  • Thursday 30th March
    11:00 Gregory Sankaran (Bath): Constructing and compactifying moduli spaces of abelian surfaces
    12.30 Umar Salam (Cambridge): Threefold contractions and fourfold flops
    2.30 Paul Hacking (Cambridge): Moduli spaces of log surfaces and Severi varieties

• Oxford, Thursday 19th May 2000
  2:00 Miles Reid (Warwick): Rings and varieties
  4.00 Mark Gross (Warwick): Moduli of abelian varieties

• Manchester, Tuesday 30th May 2000
  1:00 Terry Wall (Liverpool): Local decomposition of the polar curve of a plane curve
  2.30 Slava Nikulin (Liverpool): Interesting automorphism groups of K3 surfaces
  4.00 Gavin Brown (Oxford): Explicit Mori flips of type A

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