Lightlike Submanifolds of Semi-Riemannian Manifolds and Applications Judith Riley Responding to the Crisis and

Responding to the Crisis and Restoring Growth

The association of materials and cryogenic engineers increases their awareness of recent research in each other's fields and influences the course of future research

Living and Working Abroad58

investors in new and/or joint business ventures

Lightlike Submanifolds of Semi-Riemannian Manifolds and Applications Judith Riley Responding to the Crisis andThis book is about the light like (degenerate) geometry of submanifolds needed to fill a gap in the general theory of submanifolds. The growing importance of light like hypersurfaces in mathematical physics, in particular their extensive use in relativity, and very limited information available on the general theory of lightlike submanifolds, motivated the present authors, in 1990, to do collaborative research on the subject matter of this book. Based