Kahlerian Norden spacetime admitting conformal η-Ricci-Yamabe Metric

In this paper, we investigate conformal [Formula: see text]-Ricci–Yamabe soliton on semiconformally flat Kählerian Norden spacetime in conjunction with the Kählerian 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 [Formula: see text]-Ricci-Yamabe soliton on semiconformally flat Kählerian Norden spacetime. Finally, we also deduce the necessary and sufficient conditions for a [Formula: see text]-form [Formula: see text], which is the [Formula: see text]-dual of the vector field [Formula: see text] on such a spacetime, to be a solution of the Schrödinger-Ricci equation.