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# Jacek Brodzki : A generalised Julg-Valette complex for CAT(0)-cube complexes.

This talk will introduce a very natural and interesting differential complex associated with a CAT(0)-cube complex. The construction builds on ideas first introduced by Pytlik and Szwarc for the free group and extended by Julg and Valette in the case of groups acting on trees. We will extend ideas of Julg-Valette to show how this construction can be used to study K-amenability and K-homology of groups acting on CAT(0)-cube complexes. This talk is based on joint work with Erik Guentner and Nigel Higson.

**Category**: Number Theory**Duration**: 01:34:48**Date**: April 21, 2015 at 4:25 PM**Views**: 149-
**Tags:**seminar, CTMS Adventures In Theory Lectures

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