ON THE INTEGRABLE ＄G＄ -INVARIANT METRICS
Dionyssios Lappas · Institutional Repositories DataBase (IRDB) · 1994
We consider Riemannian metrics, invariant with respect to a given smooth proper action. Then, we describe the structure of a manifold admitting an integrable invariant metric and prove that these metrics are "rare" among all invariants metrics, except of course some extreme cases.