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Notion of H-orientability for surfaces in the Heisenberg group Hn
Differential Geometry and its Applications ( IF 0.6 ) Pub Date : 2020-10-28 , DOI: 10.1016/j.difgeo.2020.101701 Giovanni Canarecci
中文翻译:
的概念 表面的定向性
更新日期:2020-10-30
Differential Geometry and its Applications ( IF 0.6 ) Pub Date : 2020-10-28 , DOI: 10.1016/j.difgeo.2020.101701 Giovanni Canarecci
This paper aims to define and study a notion of orientability in the Heisenberg sense (-orientability) for the Heisenberg group . In particular, we define such notion for -regular 1-codimensional surfaces. Analysing the behaviour of a Möbius Strip in , we find a 1-codimensional -regular, but not Euclidean-orientable, subsurface. Lastly we show that, for regular enough surfaces, -orientability implies Euclidean-orientability. As a consequence, we conclude that non--orientable -regular surfaces exist in .
中文翻译:
的概念 表面的定向性
本文旨在定义和研究海森堡意义上的可定向性概念(-可定位性)。特别是,我们为-规则的1维表面。分析莫比乌斯带的行为,我们发现一个1维数 -规则的,但不是面向欧几里得的地下。最后,我们表明,对于足够规则的表面,定向性意味着欧几里得定向性。因此,我们得出以下结论:面向 -规则表面存在于 。