Kahlerian Norden spacetime admitting conformal η-Ricci-Yamabe metric

In this paper, we investigate conformal eta-Ricci-Yamabe soliton on semiconformally flat K & auml;hlerian Norden spacetime in conjunction with the K & auml;hlerian Norden torse-forming vector field. Furthermore, we examine various physical aspects of such soliton on special fluid spacetime, such as dust fluid, dark fluid, radiation era, viscous fluid, and heat flux. In addition, we light up the harmonic features of conformal eta-Ricci-Yamabe soliton on semiconformally flat K & auml;hlerian Norden spacetime. Finally, we also deduce the necessary and sufficient conditions for a 1-form eta, which is the g-dual of the vector field xi on such a spacetime, to be a solution of the Schr & ouml;dinger-Ricci equation.