Some Remarks on Quasi-Generalized CR-Null Geometry in Indefinite Nearly Cosymplectic Manifolds

الملخص EN

Attention is drawn to some distributions on ascreen Quasi-Generalized Cauchy-Riemannian (QGCR) null submanifolds in an indefinite nearly cosymplectic manifold.

We characterize totally umbilical and irrotational ascreen QGCR-null submanifolds.

We finally discuss the geometric effects of geodesity conditions on such submanifolds.