Codice QDD203 Titolo On the geometry of gradient Einstein-type manifolds Data 2015-04-08 Autore/i Catino, G.; Mastrolia, P.; Monticelli, D.D.; Rigoli, M. Link Download full text Abstract In this paper we introduce the notion of Einstein-type structure on a Riemannian manifold (M,g), unifying various particular cases recently studied in the literature, such as gradient Ricci solitons, Yamabe solitons and quasi-Einstein manifolds. We show that these general structures can be locally classified when the Bach tensor is null. In particular, we extend a recent result of Cao and Chen.