On Almost C(?)-Manifold Satisfying Certain Curvature Conditions

This research article is about the geometry of the almost C(?)- manifold. Some important properties of the almost C(?)- manifold with respect to the W_3- curvature tensor, such as W_3-flat and W_3- semi-symmetry, are investigated. The relationship of W_3- curvature tensor with Riemann, Ricci, projective, concircular and quasi-conformal curvature tensor is discussed on the almost C(?)- manifold and many important results are obtained. In addition, W_3- pseudo symmetry and W_3- Ricci pseudo symmetry are investigated for the almost C(?)- manifold. The results obtained are interesting and give an idea about the geometry of the almost C(?)- manifold.