Hilbert space compression and exactness of discrete groups
We show that the Hilbert space compression of any (unbounded) finite-dimensional CAT(0) cube complex is 1 and deduce that any finitely generated group acting properly, co-compactly on a CAT(0) cube complex is exact, and hence has Yu's Property A. The class of groups covered by this theorem incl...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
2005.
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| Subjects: | |
| Online Access: | Get fulltext |