Some remarks on quasi generalized CR-null geometry in indefinite nearly   cosymplectic manifolds
  In [21], the authors initiated the study of quasi generalized CR (QGCR)-null submanifolds. In this paper, attention is drawn to some distributions on ascreen 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 submanifold. 
Fortun\'e Massamba, Samuel Ssekajja
math.DG