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arXiv · 1912.05839

Curvature criterion for vanishing of group cohomology

Zohar Grinbaum-Reizis·Izhar Oppenheim
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Abstract

We introduce a new geometric criterion for vanishing of cohomology for BN-pair groups. In particular, this new criterion yields a sharp vanishing of cohomology result for all BN-pair groups acting on non-thin affine building.

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Zohar Grinbaum-Reizis, Izhar Oppenheim. 2019-12-12. Curvature criterion for vanishing of group cohomology. https://arxiv.org/abs/1912.05839

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