On the Patterns of Principal Curvature Lines around a Curve of Umbilic Points

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/73070In this paper is studied the behavior of principal curvature lines near a curve of umbilic points of a smooth surface.12 pages, 5 figuresDifferential Geometry53C12, 34D30, 53A05, 37C75On the Patterns of Principal Curvature Lines around a Curve of Umbilic Pointstext