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arXiv · 1803.09521

On the Tits cone of a Weyl groupoid

Michael Cuntz·Bernhard Mühlherr·Christian J. Weigel
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Abstract

We translate the axioms of a Weyl groupoid with (not necessarily finite) root system in terms of arrangements. The result is a correspondence between Weyl groupoids permitting a root system and Tits arrangements satisfying an integrality condition which we call the crystallographic property.

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Michael Cuntz, Bernhard Mühlherr, Christian J. Weigel. 2018-03-26. On the Tits cone of a Weyl groupoid. https://arxiv.org/abs/1803.09521

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