k-type null slant helices in Minkowski space-time

摘要

Inthispaper,weintroduceanotionofa$k$-typenullslanthelicesinMinkowskispace-time,where$kin{0,1,2,3}$.WegivethenecessaryandsufficientconditionsfornullCartancurvestobe$k$-typenullslanthelicesintermsof...