English

A model theoretic study of right-angled buildings

Logic 2017-09-14 v7

Abstract

We study the model theory of countable right-angled buildings with infinite residues. For every Coxeter graph we obtain a complete theory with a natural axiomatisation, which is ω\omega-stable and equational. Furthermore, we provide sharp lower and upper bounds for its degree of ampleness, computed exclusively in terms of the associated Coxeter graph. This generalises and provides an alternative treatment of the free pseudospace.

Keywords

Cite

@article{arxiv.1411.0510,
  title  = {A model theoretic study of right-angled buildings},
  author = {Andreas Baudisch and Amador Martin-Pizarro and Martin Ziegler},
  journal= {arXiv preprint arXiv:1411.0510},
  year   = {2017}
}

Comments

A number of small typos found by typesetter corrected

R2 v1 2026-06-22T06:45:56.152Z