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A new axiomatics for masures II

Group Theory 2023-09-13 v3 Representation Theory

Abstract

Masures are generalizations of Bruhat-Tits buildings. They were introduced by Gaussent and Rousseau in order to study Kac-Moody groups over valued fields. We prove that the intersection of two apartments of a masure is convex. Using this, we simplify the axiomatic definition of masures given by Rousseau.

Keywords

Cite

@article{arxiv.2101.05485,
  title  = {A new axiomatics for masures II},
  author = {Auguste Hebert},
  journal= {arXiv preprint arXiv:2101.05485},
  year   = {2023}
}

Comments

This paper was initially called "Convexity in a masure II". Nothing has changed in this new version except the title