完美型与模群的上同调
数论
2010-01-07 v1 K理论与同调
摘要
对于N=5、6和7，利用完美二次型的分类，我们计算了与模群SL_N(ℤ)和GL_N(ℤ)相关的Voronoi细胞复形的同调。由此我们推导出这些群的有理上同调。
关键词
引用
@article{arxiv.1001.0789,
title = {Perfect forms and the cohomology of modular groups},
author = {Philippe Elbaz-Vincent and Herbert Gangl and Christophe Soulé},
journal= {arXiv preprint arXiv:1001.0789},
year = {2010}
}
备注
17 pages, 7 tables and figures