具有局部系数的原像的上同调
几何拓扑
2009-04-28 v1 代数拓扑
摘要
设M、N和B⊂N分别为维数n+k、n和ℓ的紧光滑流形。给定从M到N的映射f,我们给出同调条件,使得对于任何同伦于f的映射g,g^{-1}(B)具有非平凡上同调(带局部系数)。我们还证明,当f横截于B时,H^j(N,N-B)中的某个上同调类在f^*下(带局部系数)对偶于H_{n+k-j}(f^{-1}(B))中对应类的像。这推广了D Gottlieb在简单系数情形下的类似公式。
引用
@article{arxiv.0904.4177,
title = {Cohomology of preimages with local coefficients},
author = {Daciberg Lima Goncalves and Peter Wong},
journal= {arXiv preprint arXiv:0904.4177},
year = {2009}
}
备注
This is the version published by Algebraic & Geometric Topology on 4 October 2006