Özüsağlam, Erdal13.07.20192019-07-1613.07.20192019-07-1620100972-0871https://hdl.handle.net/20.500.12451/2866This paper is devoted to study of timelike ruled surfaces with null ruling in three dimensional Minkowski space obtained by null straight line moving along spacelike curve. We define the central point, the curve of striction, pseudo-orthogonal trajectory in a null ruling and obtain some theorems related to these structures in the 3-dimensional Lorentzian space R31. We also give the distribution parameter of a null ruling and some theorems in R13. © 2010 Pushpa Publishing House.eninfo:eu-repo/semantics/closedAccessDistribution ParameterMinkowski SpaceNull RulingTimelike SurfaceArticle362165176N/A