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期刊论文

Uniform discreteness and Heisenberg screw motions

蒋月评JIANG Yueping John R. PARKER

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摘要/描述

We give a version of Shimizu's lemma for groups of complex hyper-bolic isometries one of whose generators is a Heisenberg screw motion.Our main result interpolates between known results for groups with agenerator that is a vertical translation or a Heisenberg rotation. Wealso give an interpretation of our result in terms of the relation be-tween radii of isometric spheres and their distance from the axis of theHeisenberg screw motion.

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版权说明:以下全部内容由蒋月评上传于   2009年03月27日 15时25分26秒,版权归本人所有。

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