Properties of metric spaces which are not coarsely embeddable into a Hilbert space
Speaker:
Mikhail Ostrovskii, St. John's University
Date and Time:
Thursday, September 16, 2010 - 5:00pm to 5:20pm
Location:
Fields Institute, Room 230
Abstract:
The talk is devoted to expansion properties of locally finite metric spaces which do not embed coarsely into a Hilbert space. The obtained characterization can be used, for example, to derive the fact that infinite locally finite graphs excluding a minor embed coarsely into a Hilbert space.