Kazhdan and Haagerup properties from the median viewpoint

We prove the existence of a close connection between spaces with measured walls and median metric spaces. We then relate properties (T) and Haagerup (a-T-menability) to actions on median spaces and on spaces with measured walls. This allows us to explore the relationship between the classical proper...

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Bibliographic Details
Main Authors: Chatterji, I, Drutu, C, Haglund, F
Format: Journal article
Language:English
Published: 2007