Ricci almost solitons on semi‐Riemannian warped products
Ricci almost solitons on semi‐Riemannian warped products
We characterize Ricci almost solitons on semi-Riemannian warped products, considering the potential function to depend on the fiber or not. We show that the fiber is necessarily an Einstein manifold. As a consequence of our characterization we prove that when the potential function depends on the fiber, if the gradient …