In the Euclidean space E^3, it is well known that normal curves, i.e., curves with position vector always lying in their normal plane, are spherical curves . Necessary and sufficient conditions for a curve to be a spherical curve in Euclidean 3-space are given in  and . In this paper, we give some characterizations of spacelike normals curves with spacelike, timelike or null principal normal in the Minkowski 3-space E^3_1.
Normal Curves, Position Vector and Minkowski Space
İLARSLAN, KAZIM (2005) "Spacelike Normal Curves in Minkowski Space E^3_1," Turkish Journal of Mathematics: Vol. 29: No. 1, Article 5. Available at: https://journals.tubitak.gov.tr/math/vol29/iss1/5