Gromov hyperbolic spaces and the sharp isoperimetric constant
Gromov hyperbolic spaces and the sharp isoperimetric constant
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格罗莫夫双曲空间和锐等周常数
DOI:
10.1007/s00222-007-0084-8
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发表时间:
2006
影响因子:
3.1
通讯作者:
S. Wenger
中科院分区:
文献类型:
--
作者:
S. Wenger
In this article we exhibit the largest constant in a quadratic isoperimetric inequality which ensures that a geodesic metric space is Gromov hyperbolic. As a particular consequence we obtain that Euclidean space is a borderline case for Gromov hyperbolicity in terms of the isoperimetric function. We prove similar results for the linear filling radius inequality. Our results strengthen and generalize theorems of Gromov, Papasoglu and others.