Finiteness of minimal modular symbols for SL(n)
Number Theory
2007-05-23 v2
Abstract
Let K be a number field with ring of integers O, and let G be a finite-index subgroup of SL(n,O). Using a classical construction from the geometry of numbers and the theory of modular symbols, we exhibit a finite spanning set for the highest nonvanishing rational cohomology group of G.
Keywords
Cite
@article{arxiv.math/9809166,
title = {Finiteness of minimal modular symbols for SL(n)},
author = {Paul E. Gunnells},
journal= {arXiv preprint arXiv:math/9809166},
year = {2007}
}
Comments
6 pages, 1 figure, AMS-LaTeX, uses psfrag.sty, incorporates referee's comments