Tel-Aviv University
School of Mathematical Sciences

Department Colloquium

Monday, December 31, 2012

Schreiber 006, 12:15

Fedor Nazarov 

Kent State University 

The ball is a local minimizer of the optimal lattice
packing density in $R^3$.

We show that every symmetric convex body $K\subset R^3$
sufficiently close to the unit ball admits a lattice packing
whose density is not less than that for the ball and is strictly
larger unless $K$ is an ellipsoid. I hope to be able to present
the full proof. This is a joint work with Yoav Kallus.

Coffee will be served at 12:00 before the lecture
at Schreiber building 006