Talk page

Title:
Co-associative fibrations of G2 manifolds

Speaker:
Simon Donaldson

Abstract:
I will describe a plausible model for the geometry of certain collapsed limits of 7-dimensional manifolds with exceptional holonomy G_2. The structure considered is a "Kovalev-Lefschetz fibration", with K3 fibres, and in the limit the fibres shrink to points. The limiting geometry is given locally by a stationary 3-dimensional submanifold in a space of indefinite signature. The first part of the talk will review background in G_2 geometry.

Link:
http://scgp.stonybrook.edu/video_portal/video.php?id=2368

Workshop:
Simons- Workshop: Riemannian Convergence Theory