Krishan L. Duggal Books
Symmetries of Spacetimes and Riemannian Manifolds
By Krishan L. Duggal, Ramesh Sharma
This book provides up-to-date information on metric (i.e. Killing, homothetic and conformal), connection (i.e. affine, conformal and projective), curvature collineations and curvature inheritance s...
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Lightlike Submanifolds of Semi Riemannian Manifolds and Applications
By Krishan L. Duggal, Aurel Bejancu
This book has been written with a two-fold approach in mind: firstly, it adds to the theory of submanifolds the missing part of lightlike (degenerate) submanifolds of semi-Riemannian manifolds, and...
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