The Eisenhart problem of finding parallel and symmetric tensors is considered in the
framework of N (k)-quasi Einstein manifolds and the result is connected with Ricci solitons. If …

We consider N (k)-quasi Einstein manifolds satisfying the conditions R (ξ, X). H= 0, H (ξ, X).
S= 0, P (ξ, X). H= 0, R (ξ, X). P= 0 and P (ξ, X). S= 0 where H, P and P denote the …

EXISTENCE OF N(k)-QUASI EINSTEIN MANIFOLDS Sudhakar Kumar Chaubey 1. Introduction
An n−dimensional semi-Riemannian or Riemanni Page 1 FACTA UNIVERSITATIS (NIŠ) Ser …

The object of the present paper is to study the properties of N (k)-quasi Einstein manifolds.
The existence of some classes of such manifolds are proved by constructing physical and …

In the present paper we introduce a semi-quasi-Einstein manifold from a semi symmetric
metric connection. Among others, the popular Schwarzschild and Kottler spacetimes are …

Abstract We consider $ N (k) $-quasi Einstein manifolds satisfying the conditions $ C ({\xi},\;
X). S= 0$, $\tilde {C}({\xi},\; X). S= 0$, $\bar {P}({\xi},\; X). C= 0$, $ P ({\xi},\; X).\tilde {C}= 0 …

In this paper N (k)-Mixed Quasi Einstein Manifolds ($ N (k)-(MQE) _N) n) are introduced and
the existence of these manifolds is proved. We give hyper surfaces of Euclidean spaces as …

The object of the present paper is to study mixed quasi-Einstein manifolds. Some geometric
properties of mixed quasi-Einstein manifolds have been studied. We also discuss M (QE) 4 …

The object of the present paper is to study N (k)-quasi-Einstein manifolds. We study an N (k)-
quasi-Einstein manifold satisfying the curvature conditions R (ξ, X)·= 0,(X, ξ)· R= 0, and P (ξ …

The object of the present paper is to study N (k)-quasi Einstein manifolds. We study an N (k)-
quasi Einstein manifold satisfying the conditions S ⋅ R= 0, R ⋅ C= f ̂ Q (g, C) S· R= 0, R …