Geodesic
New aspects on CR-structures of codimension 2 on hypersurfaces of Sasakian manifolds
Archivum mathematicum, Tome 42 (2006) no. 1, pp. 69-84.

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We introduce a torsion free linear connection on a hypersurface in a Sasakian manifold on which we have defined in natural way a $CR$-structure of $CR$-codimension 2. We study the curvature properties of this connection and we give some interesting examples.
Classification : 53C25, 53C40
Keywords: $CR-$structures; almost contact structures; $f$-structure with complemented frames 
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     author = {Munteanu, Marian-Ioan},
     title = {New aspects on {CR-structures} of codimension 2 on hypersurfaces of {Sasakian} manifolds},
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Munteanu, Marian-Ioan. New aspects on CR-structures of codimension 2 on hypersurfaces of Sasakian manifolds. Archivum mathematicum, Tome 42 (2006) no. 1, pp. 69-84. http://geodesic.mathdoc.fr/item/ARM_2006__42_1_a7/