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arXiv 1506.06293math.GT
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对偶群的有理流形模型

Rational manifold models for duality groups

Grigori Avramidi

摘要:

证明了维数为$d>2$的有限型对偶群是具有有理非循环泛覆盖的$(d+3)$ -流形的基本群。我们用它来寻找闭流形的合理非循环的普遍覆盖和一些非零的$L^2$ -贝蒂数以外的中维,这与合理的模拟辛格猜想。

英文摘要:

We show that a finite type duality group of dimension $d>2$ is the fundamental group of a $(d+3)$-manifold with rationally acyclic universal cover. We use this to find closed manifolds with rationally acyclic universal cover and some nonvanishing $L^2$-Betti numbers outside the middle dimension, which contradicts a rational analogue of a conjecture of Singer.

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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