曲线模空间上可构造层的上同调振幅
代数几何
2013-09-02 v4
摘要
我们给出了复数域上模栈上可构造层上同调的上界。这使我们能够恢复相关映射类群的虚拟上同调维数的Harer界,以及关于的完备子簇的Diaz定理。我们还对的Deligne-Mumford紧化中任何开子集(若其为层的并集)获得了这样的上界。我们的证明为在上拟凝聚层的上同调维数获得类似上界提供了一个模板。
引用
@article{arxiv.1203.4548,
title = {Cohomological amplitude for constructible sheaves on moduli spaces of curves},
author = {Eduard Looijenga},
journal= {arXiv preprint arXiv:1203.4548},
year = {2013}
}
备注
This paper is withdrawn because the proof of the main result is incomplete. This is due to an incorrect use of 1.8 in the proof of 3.1