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arXiv 2202.13619math.NTmath.GRmath.GT
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算术局部对称空间的拓扑复杂度

Topological complexity of arithmetic locally symmetric spaces

Jagiellonian University(雅盖隆大学);Yale University(耶鲁大学);Aix-Marseille Université(艾克斯-马赛大学)

Mikołaj Frączyk, Sebastian Hurtado, Jean Raimbault

AI总结:

该研究证明算术局部对称空间的拓扑复杂度与体积成线性关系,解决了Gelander猜想,并引入了基于Breuillard定理的加强版Margulis collar引理。

摘要:

我们证明了任何算术局部对称空间都同伦等价于一个单纯复形,其中单纯形的数量与空间体积成线性关系。这解决了Gelander著名的猜想。主要技术成分是一种加强版的Margulis collar引理,适用于算术局部对称空间,基于Breuillard的高度间隙定理,在此引理中,Margulis常数被设为迹域次数的线性函数。

英文摘要:

We prove that any arithmetic locally symmetric space is homotopy equivalent to a simplicial complex where the number of simplices is bounded linearly in the volume of the space. This settles a well-known conjecture of Gelander. The main technical ingredient, which is of independent interest, is a strengthened version of the Margulis' collar lemma for arithmetic locally symmetric spaces based on the height gap theorem of Breuillard, in which the Margulis constant is made linear in the degree of the trace field of the lattice.

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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