2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/61122We descrive examples of metrics in the conformal class $[g]$ on complete conformally flat Riemannian manifolds $(M,g].$ These metrics have a constant scalar curvature and an harmonic curvature with non parallel Ricci tensor.11 pagesDifferential GeometryMathematical Physics53C21, 53C25, 58G30Non Parallelism of Ricci tensor of Pseudo-cylindric Metricstext