论文标题

Riemann表面模量空间不稳定同源性的计算

Computations in the unstable homology of moduli spaces of Riemann surfaces

论文作者

Bödigheimer, Carl-Friedrich, Boes, Felix, Kranhold, Florian

论文摘要

在本文中,我们对模量空间的同源计算进行了调查,$ \ mathfrak {m} _ {g,1}^m $ riemann表面带有$ g \ geqslant 0 $,一条边界曲线和$ m \ geqslant 0 $ pumctures。尽管这个问题在理性和稳定上都有令人满意的答案,但不稳定的同源性仍然很复杂。我们讨论具有积分,MOD-2和合理系数的计算。此外,在大多数情况下,我们使用同源性操作确定明确的发电机。

In this article we give a survey of homology computations for moduli spaces $\mathfrak{M}_{g,1}^m$ of Riemann surfaces with genus $g\geqslant 0$, one boundary curve, and $m\geqslant 0$ punctures. While rationally and stably this question has a satisfying answer by the Madsen-Weiss theorem, the unstable homology remains notoriously complicated. We discuss calculations with integral, mod-2, and rational coefficients. Furthermore, we determine, in most cases, explicit generators using homology operations.

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