SOME NOTES ON ALMOST PARACONTACT STRUCTURES

In the present paper we study an almost paracontact Riemannian manifold which is closely related to the pure Riemannian metric. We construct a new tensor field corresponding to pure metric of almost paracontact structure. An integrability condition and curvature properties of structure by using this tensor field are presented. Finally, we study almost paracontact structures with structural exact 1-form.