Concircular Curvature Tensor on Almost Kenmotsu Manifolds Admitting the Nullity Distributions

The object of the present paper is to study almost Kenmotsu manifolds with characteristic vector field ξ belonging to some nullity distributions, considering concircular curvature tensor. Locally ϕ-concircularly symmetric almost Kenmotsu manifolds, concircularly ϕ-recurrent almost Kenmotsu manifolds and locally concircularly ϕ-recurrent three-dimensional almost Kenmotsu manifolds are studied. And we have obtained some interesting results.