# The equi-affine curvatures of curves in 3-dimensional pseudo-Riemannian manifolds.

@article{Olszak2019TheEC, title={The equi-affine curvatures of curves in 3-dimensional pseudo-Riemannian manifolds.}, author={Karina Olszak and Zbigniew Olszak}, journal={arXiv: Differential Geometry}, year={2019} }

In this paper, the Cartan frames and the equi-affine curvatures are described with the help of the Frenet frames and the Frenet curvatures of a non-null and non-degenerate curve in a 3-dimensional pseudo-Riemannian manifold. The constancy of the Frenet curvatures of such a curve always implies the constancy of the equi-affine curvatures. We show that the converse statement does not hold in general. Finally, we study the equi-affine curvatures of null curves in 3-dimensional Lorentzian manifolds…

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