3D-Darboux motions in 4-dimensional Euclidean space.
3-K-contact Wolf spaces
The aim of this paper is to give an easy explicit description of 3-K-contact structures on SO(3)-principal fibre bundles over Wolf quaternionic Kähler manifolds.
3-manifolds with(out) metrics of nonpositive curvature.
3rd order differential invariants of coframes
3-submersions from QR-hypersurfaces of quaternionic Kähler manifolds
We study 3-submersions from a QR-hypersurface of a quaternionic Kähler manifold onto an almost quaternionic hermitian manifold. We also prove the non-existence of quaternionic submersions between quaternionic Kähler manifolds which are not locally hyper-Kähler.
3-type curves in the Euclidean space .
3-type curves in the Euclidean space E5
3-type Curves on Hyperboloids of Revolution and Cones of Revolution
4 Feuilletages et mécanique hamiltonienne
4-dimensional anti-Kähler manifolds and Weyl curvature
On a 4-dimensional anti-Kähler manifold, its zero scalar curvature implies that its Weyl curvature vanishes and vice versa. In particular any 4-dimensional anti-Kähler manifold with zero scalar curvature is flat.
4-dimensional c-symplectic -manifolds with non-empty fixed point set need not be c-Hamiltonian
The aim of this article is to answer a question posed by J. Oprea in his talk at the Workshop "Homotopy and Geometry".
4-Dimensional (Para)-Kähler-Weyl Structures
4-planar mappings of almost quaternionic and almost antiquaternionic Spaces.
50 years sets with positive reach -- a survey.
A balanced proper modification of P3.
A basic inequality for submanifolds in a cosymplectic space form.
A basic inequality of submanifolds in quaternionic space forms.
A boundary rigidity problem for holomorphic mappings.
A boundary value problem in the hyperbolic space.
A bridge principle for minimal and constant mean curvature submanifolds of RN.