English

On finite arithmetic simplicial complexes

Number Theory 2010-06-17 v1

Abstract

We compute the Euler-Poincar\'e characteristic of quotients of the Bruhat-Tits building of PGL(n) under the action of arithmetic groups arising from central division algebras over rational function fields of positive characteristic. We use this result to determine the structure of the quotient simplicial complex in certain cases.

Keywords

Cite

@article{arxiv.1006.3198,
  title  = {On finite arithmetic simplicial complexes},
  author = {Mihran Papikian},
  journal= {arXiv preprint arXiv:1006.3198},
  year   = {2010}
}

Comments

14 pages

R2 v1 2026-06-21T15:37:06.940Z