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Uniform domains and hyperbolic distance
Journal d'Analyse Mathématique ( IF 1 ) Pub Date : 2021-06-29 , DOI: 10.1007/s11854-021-0160-9 David A. Herron
中文翻译:
均匀域和双曲距离
更新日期:2021-06-29
Journal d'Analyse Mathématique ( IF 1 ) Pub Date : 2021-06-29 , DOI: 10.1007/s11854-021-0160-9 David A. Herron
The Gehring-Osgood characterization for uniform Euclidean domains asserts that these are precisely the domains in which quasihyperbolic distance is bounded above by a constant multiple of the so-called relative distance. We prove that a hyperbolic plane domain is uniform if and only if its hyperbolic distance is bounded above by a constant multiple of its relative distance. Similar results hold for uniform domains in the Riemann sphere, and also for Euclidean inner uniform domains.
中文翻译:
均匀域和双曲距离
均匀欧几里得域的 Gehring-Osgood 表征断言,这些域正是准双曲距离以所谓的相对距离的常数倍为界的域。我们证明了双曲平面域是均匀的,当且仅当其双曲距离的边界为其相对距离的常数倍。类似的结果适用于黎曼球中的均匀域,也适用于欧几里德内部均匀域。