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arXiv 1609.03046math.GTmath.DGmath.GR
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双曲流形的真凸弯曲

Properly convex bending of hyperbolic manifolds

Samuel A. Ballas, Ludovic Marquis

摘要:

本文证明了有限体积双曲$d$ -流形$M$沿全测地超曲面$Σ$的弯曲将导致$M$上具有有限体积的真凸射影结构.我们还讨论了弯曲流形的各种几何性质及其基本群的代数性质。然后,我们使用这个结果来显示在每个维度$d\geq 3$有例子有限体积,但非紧,适当凸$d$ -流形。此外,我们证明了例子可以选择为严格凸或非严格凸。

英文摘要:

In this paper we show that bending a finite volume hyperbolic $d$-manifold $M$ along a totally geodesic hypersurface $Σ$ results in a properly convex projective structure on $M$ with finite volume. We also discuss various geometric properties of bent manifolds and algebraic properties of their fundamental groups. We then use this result to show in each dimension $d\geq 3$ there are examples finite volume, but non-compact, properly convex $d$-manifolds. Furthermore, we show that the examples can be chosen to be either strictly convex or non-strictly convex.

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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