中文

扭曲K理论与正数量曲率度量的障碍

几何拓扑 2015-09-03 v3 K理论与同调

摘要

对于具有旋量泛覆盖的可定向流形,我们将正数量曲率度量的扭曲指标障碍 θ(M)\theta(M) 分解为扭曲K-同调与扭曲K-理论类的配对,并证明了如果 MM 是具有旋量泛覆盖的可定向可放大流形,则 θ(M)\theta(M) 不会消失。

关键词

引用

@article{arxiv.1108.3701,
  title  = {Twisted K-theory and obstructions against positive scalar curvature metrics},
  author = {Ulrich Pennig},
  journal= {arXiv preprint arXiv:1108.3701},
  year   = {2015}
}

备注

21 pages (drastically streamlined with focus on the proof of the non-vanishing result)