In this paper we have studied almost morphisms on an almost contact metric structure manifolds in almost GF-r contact metric manifolds. Some other interesting result on cartesian product manifoldM×Rr have also been established where M is an almost GF-r contact metric manifold of dimension (2m+ r).
Keywords and Phrases
Almost r-contact structure, GF-structure, harmonic morphisms, cartesian product manifold.
A.M.S. subject classiﬁcation