49 citations · 244 across the 25 of their papers we have counts for
4 papers · 2 filters
Slant submanifolds of quaternionic space forms
Gabriel Eduard Vilcu
In this paper we establish some inequalities concerning the -Ricci curvature of a slant submanifold in a quaternionic space form. We also obtain obstructions to the existence of…
Curvature properties of pseudo-sphere bundles over paraquaternionic manifolds
Gabriel Eduard Vilcu, Rodica Cristina Voicu
In this paper we obtain several curvature properties of the twistor and reflector spaces of a paraquaternionic Kähler manifold and prove the existence of both positive and negative…
3-submersions from QR-hypersurfaces of quaternionic Kaehler manifolds
Gabriel Eduard Vilcu
In this paper we study 3-submersions from a QR-hypersurface of a quaternionic Kaehler manifold onto an almost quaternionic hermitian manifold. We also prove the non-existence of qu…
Riemannian submersions from almost contact metric manifolds
Stere Ianus, Adrian Mihai Ionescu, Raluca Mocanu +1
In this paper we obtain the structure equation of a contact-complex Riemannian submersion and give some applications of this equation in the study of almost cosymplectic manifolds…