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

In this paper, we introduce three kinds of tubular surfaces associated to original center curves γ 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 severa...

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Veröffentlicht in:Mathematical methods in the applied sciences 2019-06, Vol.42 (9), p.3136-3166
Hauptverfasser: Hu, Shichang, Wang, Zhigang, Tang, Xiaoqing
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Sprache:eng
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Zusammenfassung:In this paper, we introduce three kinds of tubular surfaces associated to original center curves γ 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 γ with osculating model surfaces, the contacts of γ with slices, and the singularities of three kinds of surfaces are further revealed. Several examples are presented to explain the theoretical results.
ISSN:0170-4214
1099-1476
DOI:10.1002/mma.5574