Title of article :
The fibre bundle of degenerate tangent planes of a Lorentzian manifold and the smoothness of the null sectional curvature
Author/Authors :
Francisco J. Palomo، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2007
Keywords :
Lorentzian manifolds , Degenerate tangent planes , Null sectional curvature
Journal title :
DIFFERENTIAL GEOMETRY & APPLICATIONS
Journal title :
DIFFERENTIAL GEOMETRY & APPLICATIONS