Abstract
In this paper, we define the notion of a proper helix of order $d$ in a pseudo-Riemannian manifold and investigate those curves in a totally umbilical pseudo-Riemannian submanifold.
Citation
Takahisa Kimura. Naoyuki Koike. Hwa Hon Song Song. "On proper helices and extrinsic spheres in pseudo-Riemannian geometry." Tsukuba J. Math. 20 (2) 263 - 280, December 1996. https://doi.org/10.21099/tkbjm/1496163081
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