Hermitian natural tensors.
Higher order contact of real curves in a real hyperquadric
Holomorphic forms and holomorphic vector fields on compact generalized Hopf manifolds
Holomorphically projective curvature tensors
Homogeneous metrical structures on manifold.
Homomorphisms of the Lie algebras associated with a symplectic manifold
Homotopie régulière inactive et engouffrement symplectique
Une homotopie régulière , , dans une variété symplectique est dite inactive si en chaque point le déplacement infinitésimal est -orthogonal à l’espace tangent de l’objet déplacé. Si est un polyèdre de de dimension et si est un ouvert de , toute homotopie de jusqu’à est déformable en une homotopie régulière inactive. On donne une application à l’engouffrement en géométrie symplectique.
Homotopy Classification of Nondegenerate Quasiperiodic Curves on the 2-sphere
Homotopy properties of Hamiltonian group actions.
Hopf hypersurfaces in complex two-plane Grassmannians with generalized Tanaka-Webster -parallel structure Jacobi operator
Regarding the generalized Tanaka-Webster connection, we considered a new notion of -parallel structure Jacobi operator for a real hypersurface in a complex two-plane Grassmannian G 2(ℂm+2) and proved that a real hypersurface in G 2(ℂm+2) with generalized Tanaka-Webster -parallel structure Jacobi operator is locally congruent to an open part of a tube around a totally geodesic quaternionic projective space ℍP n in G 2(ℂm+2), where m = 2n.
Hopf hypersurfaces in complex two-plane Grassmannians with generalized Tanaka-Webster parallel normal Jacobi operator
We study the classifying problem of immersed submanifolds in Hermitian symmetric spaces. Typically in this paper, we deal with real hypersurfaces in a complex two-plane Grassmannian which has a remarkable geometric structure as a Hermitian symmetric space of rank 2. In relation to the generalized Tanaka-Webster connection, we consider a new concept of the parallel normal Jacobi operator for real hypersurfaces in and prove non-existence of real hypersurfaces in with generalized Tanaka-Webster...
Hopf hypersurfaces in nearly Kaehler 6-sphere.
Hyper Kähler and quaternionic Kähler geometry.
Hyperbolic volume and mod p homology.
Hypersurfaces in an almost paracontact manifold
Immersed spheres in symplectic 4-manifolds
We discuss conditions under which a symplectic 4-manifold has a compatible Kähler structure. The theory of -holomorphic embedded spheres is extended to the immersed case. As a consequence, it is shown that a symplectic 4-manifold which has two different minimal reductions must be the blow-up of a rational or ruled surface.
Inclusion Relations Between some Clases of Almost Hermite Manifolds
Indefinite almost paracontact metric manifolds.
Index invariants of orbit spaces.
Inequality for Ricci curvature of certain submanifolds in locally conformal almost cosymplectic manifolds.