Mathematical Communications, cilt.19, sa.1, ss.119-138, 2014 (SCI-Expanded)
In this paper, we investigate the tangent indicatrix, the principal normal in- dicatrix and the binormal indicatrix of a timelike curve in Minkowski 3-space E3 1 and we construct their Frenet equations and curvature functions. Moreover, we obtain some dif- ferential equations which characterize a timelike curve to be a slant helix by using the Frenet apparatus of a spherical indicatrix of the curve. Also, related examples and their illustrations are given. © 2014 Department of Mathematics, University of Osijek.