On non-null relatively normal-slant helices in Minkowski 3-space

By using the Darboux frame |?, ?, ?| of a non-null curve lying on timelike surface in Minkowski 3-space, where ? is unit tangent vector curve, spacelike normal field restricted to and = ?? we define relatively normal-slant helices as curves satisfying condition that scalar product fixed spanning their axis non-constant constant. We give necessary sufficient conditions for be helices. consider special cases when relatively-normal slant are geodesic curves, asymptotic or lines principal curvature. show an hyperbolic helix over general cylindrical ruled surface, some examples E31.