1
by Duggal, Krishan L., Sahin, Bayram
Published 2010
Birkhäuser Basel
Table of Contents: '; ... -- Applications of lightlike geometry...

2
by Duggal, Krishan L., Bejancu, Aurel
Published 1996
Springer Netherlands
Table of Contents: '; ...1 Algebraic Preliminaries -- 2 Differential-geometric structures on Manifolds -- 3 Geometry of null...

3
by Duggal, Krishan L., Sharma, Ramesh
Published 1999
Springer US
Subjects: '; ...Global differential geometry...