Théorème de Gauß-Bonnet et géométrie non commutative
Three theorems on cosymplectic hypersurfaces of six-dimensional Hermitian submanifolds of the Cayley algebra.
Tight lagrangian submanifolds in CPn.
Tight Topological Embeddings of the Real Projective Plane in E5.
Time-like isothermic surfaces associated to Grassmannian systems.
Topological and metric rigidity teorems for hypersurfaces in a hyperbolic space
In this paper we study the topological and metric rigidity of hypersurfaces in , the -dimensional hyperbolic space of sectional curvature . We find conditions to ensure a complete connected oriented hypersurface in to be diffeomorphic to a Euclidean sphere. We also give sufficient conditions for a complete connected oriented closed hypersurface with constant norm of the second fundamental form to be totally umbilic.
Torsion von Minimalflächen.
Total Absolute Curvature of Submanifolds in Compact Symmetric Spaces of Rank One.
Totally real minimal submanifolds in a quaternion projective space
We prove some pinching theorems with respect to the scalar curvature of 4-dimensional conformally flat (concircularly flat, quasi-conformally flat) totally real minimal submanifolds in QP⁴(c).
Totally real submanifolds in a complex projective space.
Totally real submanifolds in a quaternion space form
In this paper, we prove a theorem for -dimensional totally real minimal submanifold immersed in quaternion space form.
Totally real submanifolds of a complex space form.
Totally umbilical CR-submanifolds of semi-Riemannian Kähler manifolds.
Totally umbilical pseudo-Riemannian submanifolds of the paracomplex projective space
Totally Umbilical Pseudo-Slant Submanifolds of a Nearly Cosymplectic Manifold
2000 Mathematics Subject Classification: 53C40, 53B25.In the present note we study totally umbilical pseudo-slant submanifolds of a nearly cosymplectic manifold. We have obtained a classification theorem for totally umbilical pseudo-slant submanifolds of a nearly cosymplectic manifold.
Transformations for hypersurfaces with vanishing Gauss-Kronecker curvature.
Transnormal graph surfaces.
Transnormal partial tubes.
Transversally symmetric immersions
We introduce the notions of (extrinsic) locally transversally symmetric immersions and submanifolds in a Riemannian manifold equipped with a unit Killing vector field as analogues of those of (extrinsic) locally symmetric immersions and submanifolds. We treat their geometric properties, derive several characterizations and give a list of examples.
Tubes and the Geometry of the Kahler Manifolds