Characterization inextensible flows of developable surfaces associated focal curve of spacelike curve with timelike binormal in E31

Abstract

In this paper, we study inextensible flows of developable surfaces associated with focal curves of spacelike curves with timelike binormal in Minkowski 3-space E3 1 . We show that if flow of this developable surface is inextensible then we characterize this surface in terms of curvatures of spacelike curve in Minkowski 3-space E31.