School of Mathematics Colloquium
Property (T) versus aTmenability
by Dr. Indira Chatterji (Université de Nice)
Thursday, March 24, 2022
from
to
(Asia/Kolkata)
at Lecture Room (AG-69) Via Zoom
at Lecture Room (AG-69) Via Zoom
Description |
Abstract: A group has property (T) if its trivial representation is isolated in the unitary dual. This is equivalent to saying that any action by affine isometries on a Hilbert space has a fixed point. A group is called aTmenable if it admits a proper action on a Hilbert space. We shall review those properties and see what happens when we replace the Hilbert space by an ell^p space. |