中文

Lie 群商于稠密子群的 de Rham 同调

微分几何 2026-04-22 v2 代数拓扑

摘要

HH 为 Lie 群 GG 的一稠密子群,其李代数为 g\mathfrak g。我们证明,G/HG/H 的(微分几何)de Rham 同调等于 g/h\mathfrak g/\mathfrak h 的李代数同调,其中 h\mathfrak h 为理想 {Zg:exp(tZ)H 对所有 tR}\{Z\in\mathfrak g:\exp(tZ)\in H \text{ 对所有 } t\in\mathbf R \}

关键词

引用

@article{arxiv.2407.07381,
  title  = {The de Rham cohomology of a Lie group modulo a dense subgroup},
  author = {Brant Clark and Francois Ziegler},
  journal= {arXiv preprint arXiv:2407.07381},
  year   = {2026}
}

备注

Genuine introduction (motivation / history) and appendix A (little known subgroup properties) added per referee request. Accepted version, to appear in Proceedings of the AMS