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arXiv 1010.3555math.DGmath-phmath.MP
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三维欧氏空间中的螺旋线与Bertrand曲线

On Helices and Bertrand Curves in Euclidean 3-Space

Murat Babaarslan, Yusuf Yayli

摘要:

本文研究了三维欧氏空间中空间曲线的切线、副法线、主法线和达布指标的球面像所对应的Bertrand曲线。结果表明,当空间曲线为一般螺旋线时,与其切线指标线和副法向指标线的球面像对应的曲线既为Bertrand曲线,又为圆螺旋线。同样,当空间曲线为斜螺旋线时,我们证明了与其主法线指标线的球面像相对应的曲线既是Bertrand曲线,又是圆螺旋线。

英文摘要:

In this article, we investigate Bertrand curves corresponding to the spherical images of the tangent, binormal, principal normal and Darboux indicatrices of a space curve in Euclidean 3-space. As a result, in case of a space curve is a general helix, we show that the curves corresponding to the spherical images of its the tangent indicatrix and binormal indicatrix are both Bertrand curves and circular helices. Similarly, in case of a space curve is a slant helix, we demonstrate that the curve corresponding to the spherical image of its the principal normal indicatrix is both a Bertrand curve and a circular helix.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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