Geometry Seminar


Crepant resolutions of projectivised nilpotent orbits


Professor Baohua Fu
Ecole Polytechnique de l’Universite de Nantes and
 The Institute of Mathematical Sciences &
 Department of Mathematics, The Chinese University of Hong Kong





The projectivised nilpotent orbit closure (in a complex semi-simple Lie algebra) carries a natural contact structure. It turns out that for such varieties a crepant resolution is a resolution on which the contact structure extends to the whole variety.  In this talk, we will determine when such a resolution exists, and in the case of several different ones, we will compare them by describing their movable cones.



February 17, 2006 (Friday)


2:30 – 3:30pm


Room 517, Meng Wah Complex




All are welcome