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arXiv · 0710.5361

On the bounded cohomology of semi-simple groups, S-arithmetic groups and products

Abstract

We prove vanishing results for Lie groups and algebraic groups (over any local field) in bounded cohomology. The main result is a vanishing below twice the rank for semi-simple groups. Related rigidity results are established for S-arithmetic groups and groups over global fields. We also establish vanishing and cohomological rigidity results for products of general locally compact groups and their lattices.

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BibTeXRIS

Nicolas Monod. 2007-10-29. On the bounded cohomology of semi-simple groups, S-arithmetic groups and products. https://doi.org/10.1515/crelle.2010.024

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