Non-existence of proper semi-invariant submanifolds of a Lorentzian para-Sasakian manifold.
On -recurrent generalized -contact metric manifolds.
On a generalized class of recurrent manifolds
The object of the present paper is to introduce a non-flat Riemannian manifold called hyper-generalized recurrent manifolds and study its various geometric properties along with the existence of a proper example.
On Extended Generalized -recurrent -Kenmotsu Manifolds
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