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Tubular surfaces of center curves on spacelike surfaces in Lorentz-Minkowski 3-space

机译:中心曲线的管状表面在Lorentz-Minkowski 3空间的空间曲面上

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摘要

In this paper, we introduce three kinds of tubular surfaces associated to original center curves gamma lying in spacelike surfaces in Lorentz-Minkowski 3-space. It is demonstrated that these tubular surfaces can occur some singularities and the types of these singularities can be characterised by several invariants, respectively. Some interesting relations between the contacts of original curve gamma with osculating model surfaces, the contacts of gamma with slices, and the singularities of three kinds of surfaces are further revealed. Several examples are presented to explain the theoretical results.
机译:在本文中,我们介绍了与Lorentz-Minkowski 3空间中的晶状体表面上的原始中心曲线伽马相关的三种管状表面。 结果表明,这些管状表面可以发生一些奇点,并且这些奇点的类型分别可以分别表征几种不变量。 原始曲线伽马接触与静脉化模型表面的触点之间的一些有趣关系,进一步揭示了γ与切片的伽马触点,以及三种表面的奇点。 提出了几个例子以解释理论结果。

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