On h-almost conformal η-Ricci-Bourguignon solitons in a perfect fluid spacetime

. The primary object of the paper is to study h-almost conformal ri-Ricci-Bourguignon soliton in an almost pseudo-symmetric Lorentzian K & aacute;hler spacetime manifold when some different curvature tensors vanish identically. We have also explored the conditions under which an h-almost conformal Ricci-Bourguignon soliton is steady, shrinking or expanding in different perfect fluids such as stiff matter, dust fluid, dark fluid and radiation fluid. We have observed in a perfect fluid spacetime with h-almost conformal ri-Ricci-Bourguignon soliton to be a manifold of constant Riemannian curvature under some certain conditions. We have gone on to refine the classification of the potential function with respect to gradient h-almost conformal ri-Ricci-Bourguignon soliton in a perfect fluid spacetime with torse-forming vector field xi. Finally, we have developed an example of h-almost conformal ri-Ricci-Bourguignon soliton.