On finite arithmetic simplicial complexes
Open Access
- 30 July 2010
- journal article
- Published by American Mathematical Society (AMS) in Proceedings of the American Mathematical Society
- Vol. 139 (1) , 111-124
Abstract
We compute the Euler-Poincaré characteristic of quotients of the Bruhat-Tits building of PGL ( n ) \operatorname {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
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