Key points are not available for this paper at this time.
We define the central curvature and the total central curvature of a closed curve in a Lorentz (n + 1) --space. In addition, we obtain estimates for the total central curvatures of spacelike pure polygons. The study is done by using the n-dimensional de Sitter's space-time. 2000 Mathematics Subject Classification. 53B30, 53C50
Graciela M. Desideri (Mon,) studied this question.