Integrabilità per separazione delle variabili delle equazioni alle derivate parziali lineari del secondo ordine interessanti la fisica-matematica
We state a local characterization of the Riemannian manifolds upon which second order linear partial differential equations of mathematical physics are integrable by separation of the variables. Among the results we have a generalizazion of a classical theorem of Eisenhart on the separability of the Schrödinger equation in orthogonal coordinates.