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arXiv 0908.3309math.GR
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论双子建筑格构的变形

On the distortion of twin building lattices

Pierre-Emmanuel Caprace, Bertrand Remy

摘要:

我们表明,孪生建筑晶格是不失真的环境组,相当于,轨道映射的晶格的产品相关的孪生建筑物是一个准等距嵌入。作为结果,我们提供了这些格的拟平坦秩的估计,这意味着有无穷多个拟等距类的非线性呈现单群。在附录中,我们描述了如何非扭曲的晶格是相关的结构上循环的可积性。

英文摘要:

We show that twin building lattices are undistorted in their ambient group; equivalently, the orbit map of the lattice to the product of the associated twin buildings is a quasi-isometric embedding. As a consequence, we provide an estimate of the quasi-flat rank of these lattices, which implies that there are infinitely many quasi-isometry classes of finitely presented simple groups. In an appendix, we describe how non-distortion of lattices is related to the integrability of the structural cocycle.

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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