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arXiv 2104.14880math.GT
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Isom($\mathbb{H}^3$)的连通分支-非可定向曲面的表示

Connected components of Isom($\mathbb{H}^3$)-representations of non-orientable surfaces

Juan Luis Durán Batalla

摘要:

设$N_k$表示亏格$k$的闭不可可定向曲面.本文研究了三维双曲空间的等距群到保向等距子群的“平方映射”的性质。我们发现,有$2^{k+1}$连接组件的表示$π_1(N_k)$在Isom $(\mathbb{H}^3)$,这是由相关的平面束的Stiefel-Whitney类区分。

英文摘要:

Let $N_k$ denote the closed non-orientable surface of genus $k$. In this paper we study the behaviour of the `square map' from the group of isometries of hyperbolic 3-space to the subgroup of orientation preserving isometries. We show that there are $2^{k+1}$ connected components of representations of $π_1(N_k)$ in Isom$(\mathbb{H}^3)$, which are distinguished by the Stiefel-Whitney classes of the associated flat bundle.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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