On Parallelism of Half-Lightlike Submanifolds of Indefinite Kenmotsu Manifolds

الملخص EN

We mainly investigate the parallelism of half-lightlike submanifolds of indefinite Kenmotsu manifolds.

It is proved that a tangential half-lightlike submanifold M of an indefinite Kenmotsu space form M-c,g- with semiparallel second fundamental form h either satisfies c=-1 or is J-RadTM,TM-mixed geodesic.