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arXiv · 1509.03146

Root operators, root groups and retractions

Petra Schwer
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Abstract

We prove that the Gaussent--Littelmann root operators on galleries can be expressed purely in terms of retractions of a (Bruhat-Tits) building. In addition we establish a connection to the root datum at infinity.

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Petra Schwer. 2015-09-10. Root operators, root groups and retractions. https://arxiv.org/abs/1509.03146

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