Publication

The Bounded Cohomology of SL2 Over Local Fields and S-Integers

Nicolas Monod, Michelle Karlsson-Bucher
2019
Journal Articles

Abstract

It is proved that the continuous bounded cohomology of SL2(k) vanishes in all positive degrees whenever k is a non-Archimedean local field. This holds more generally for boundary-transitive groups of tree automorphisms and implies low degree vanishing for SL2 over S-integers.

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The Bounded Cohomology of SL2 Over Local Fields and S-Integers

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