Characterizations of umbilic points of isometric immersions in Riemannian and Lorentzian manifolds

MAGDALENA CABALLERO CAMPOSRAFAEL MARÍA RUBIO RUIZ2026-01-292026-01-29201610.11650/tjm.20.2016.73832-s2.0-84989908093https://www.scopus.com/inward/record.uri?eid=2-s2.https://ucocris.uco.es/handle/123456789/27411Mathematics (all)Characterizations of umbilic points of isometric immersions in Riemannian and Lorentzian manifoldsresearch article