Piotr Nowak (Warschau): Warped cones and ghost projections. Oberseminar C*-Algebren.
Tuesday, 18.07.2017 15:15 im Raum N2
I will describe the construction of a warped cone, which is a metric space constructed from an action of a group on a compact space. The dynamical properties of the action influence the geometry of the corresponding warped cone. In the case of an action with a spectral gap we will construct ghost projections. Such ghost projections are an obstruction to the coarse Baum-Connes conjecture.
Angelegt am Thursday, 01.06.2017 10:42 von Elke Enning
Geändert am Tuesday, 11.07.2017 13:44 von Elke Enning
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