Notes on conformal and non-conformal transformation metrics of generalized quasi-Einstein manifolds

In this paper, we focus on the characterizations and properties of quasi-Einstein and generalized quasi-Einstein manifolds with certain vector fields. Also we establish the necessary and sufficient conditions for these manifolds to be Ricci semi-symmetric, pseudo-projective Ricci symmetric and pseudo-projective semi-symmetric manifolds. Finally, we investigate the behavior of such manifolds endowed with conformal and non-conformal transformations of metrics.