Calendar
- 11October 11, 2019
- 18October 18, 2019
- 24October 24, 2019
Framings and the recognition principle
Science Center 5071 Oxford Street, Cambridge, MA 02138 USANo additional detail for this event.
- 25October 25, 2019
G_2-instantons on the 7-sphere
Science Center 5071 Oxford Street, Cambridge, MA 02138 USAAbstract:
I’ll discuss a forthcoming paper studying families of G_2-instantons on S^7, focusing on those which are obtained by pulling back asd instantons on S^4 via the quaternionic Hopf fibration. In the charge-1 case, this yields a smooth and complete 15-dimensional family. The situation for the higher charge is more complicated, but we are able to compute all the infinitesimal deformations.