Null helix and k '> [Math Processing Error] k -type null slant helices in E 1 4 '> [Math Processing Error] E 1 4

摘要

We study the null helix and k-type null slant helices in 4-dimensionalMinkowski space E41and characterize them in terms of the null curvature,null torsion and structure functions. Some null helices and k-type nullslant helices are presented by solving special di erential equations