46 research outputs found
-Ricci solitons in -almost paracontact metric manifolds
The object of this paper is to study -Ricci solitons on
-almost paracontact metric manifolds. We investigate
-Ricci solitons in the case when its potential vector field is exactly
the characteristic vector field of the -almost paracontact
metric manifold and when the potential vector field is torse-forming. We also
study Einstein-like and -para Sasakian manifolds admitting
-Ricci solitons. Finally we obtain some results for -Ricci solitons
on -almost paracontact metric manifolds with a special view
towards parallel symmetric (0,2)-tensor fields.Comment: 20 page
On Lightlike Geometry of Para-Sasakian Manifolds
We study lightlike hypersurfaces of para-Sasakian manifolds tangent to the characteristic vector field. In particular, we define invariant lightlike hypersurfaces and screen semi-invariant lightlike hypersurfaces, respectively, and give examples. Integrability conditions for the distributions on a screen semi-invariant lightlike hypersurface of para-Sasakian manifolds are investigated. We obtain a para-Sasakian structure on the leaves of an integrable distribution of a screen semi-invariant lightlike hypersurface
SCREEN SLANT RADICAL TRANSVERSAL NULL SUBMANIFOLDS OF PARA-SASAKIAN MANIFOLDS
In our paper we introduce totally paracontact umbilical radical transversalnull submanifolds and screen slant radical transversal null submanifolds of para-Sasakian manifolds. On a screen slant radical transversal null submanifold of a para-Sasakian manifold, we find integrability conditions of distributions