A New Kind of Slant Helix in Lorentzian (n

In this paper, we introduce a new kind of slant helix for null curves called null W-n-slant helix and we give a definition of new harmonic curvature functions of a null curve in terms of W-n in (n + 2)-dimensional Lorentzian space M-1(n+2) (for n > 3). Also, we obtain a characterization such as: The curve alpha is a null W-n - slant helix <=>H-n(') - k(1)H(n-3) = 0 where H-n, Hn-1 and Hn-3 are harmonic curvature functions and k(1), k(2) are the Cartan curvature functions of the null curve alpha.