Torsion Tensor and Critical Metrics on Contact (2n + 1)-Manifolds.
Totally contact umbilical screen-slant and screen-transversal lightlike submanifolds of indefinite Kenmotsu manifold
We study totally contact umbilical screen-slant lightlike submanifolds and totally contact umbilical screen-transversal lightlike submanifolds of an indefinite Kenmotsu manifold. We prove a characterization theorem of totally contact umbilical screen-slant lightlike submanifolds of an indefinite Kenmotsu manifold. We further prove some results on a totally contact umbilical radical screen-transversal lightlike submanifold of an indefinite Kenmotsu manifold, such as the necessary and sufficient conditions...
Totally umbilical pseudo-Riemannian submanifolds of the paracomplex projective space
Towards the Definition of Symplectic Boundary.
Transversales lagrangiennes, périodicité de Bott et formes génératrices pour une immersion lagrangienne dans un cotangent
Tri-analytic Subvarieties of Hyperkähler Manifolds.
Two theorems on -Sasakian manifolds.
Type des points fixes des difféomorphismes symplectiques de