${\ell}^1(G)$ 中增广理想的单纯上同调
泛函分析
2010-01-16 v3 群论
摘要
设 为离散群。我们给出了具有特定 -模系数的 的 Hochschild 上同调的分解定理。利用该定理,我们证明了若 是交换传递的,则 的有界上同调到 的单纯上同调的规范包含是一个同构。
引用
@article{arxiv.0711.3669,
title = {Simplicial cohomology of augmentation ideals in ${\ell}^1(G)$},
author = {Yemon Choi},
journal= {arXiv preprint arXiv:0711.3669},
year = {2010}
}
备注
14pp, uses Paul Taylor's diagrams.sty macros. v3: typos caught and some minor corrections/clarifications of terminology. This is not the final version, which will appear in Proc. Edinburgh Math. Soc