Generalized Timelike Mannheim Curves in Minkowski space-time $E_1^4$
  We give a definition of generalized timelike Mannheim curve in Minkowski space-time $E_1^4$. The necessary and sufficient conditions for the generalized timelike Mannheim curve obtain. We show some characterizations of generalized Mannheim curve. 
M. Aky\.i\v{g}\.it, S. Ersoy, \.i. \"oZg\"uR, M. Tosun
math.DG