Intermediate flexibility of surfaces
Invariance of -natural metrics on linear frame bundles
In this paper we prove that each -natural metric on a linear frame bundle over a Riemannian manifold is invariant with respect to a lifted map of a (local) isometry of the base manifold. Then we define -natural metrics on the orthonormal frame bundle and we prove the same invariance result as above for . Hence we see that, over a space of constant sectional curvature, the bundle with an arbitrary -natural metric is locally homogeneous.
Invariant submanifolds and their second fundamental forms.
Invariant Submanifolds in Sasakian Manifolds.
Invariant submanifolds of codimension 2 of almost contact manifolds
Invariants in contact topology.
Isometric embedding of Kähler manifolds with nonpositive sectional curvature.
Isometric Immersions in Codimesion Two with Non Negative Curvature.
Isometric Immersions of Constant Curvature Manifolds.
Isometric Immersions of Lorentzian Space Forms.
Isometric Immersions of n-dim. Hyperbolic Spaces into (4n?3)-dim. Standard Spheres and Hyperbolic Spaces.
Isometric immersions of Riemannian products revisited.
Isometric Immersions of the Hyperbolic Plane into the Hyperbolic Space.
Isometric Immersions with the Same Gauss Map.
Isometric Reflections with Respect to Submanifolds and the Ricci Operator of Geodesic Spheres.
Isometrische Immersionen der Kodimension 2 von Raumformen.
Isoparametric and Dupin hypersurfaces.
Isoparametrische Hyperflächen in Sphären I.
Isoparametrische Hyperflächen in Sphären. II. Über die Zerlegung der Sphäre in Ballbündel.
Isothermic surfaces and Hopf cylinders.