Results 101 to 110 of about 373,220 (224)

Conformal quasi-hemi-slant $\xi^{\perp}$-Riemannian submersions from Sasakian manifolds [PDF]

open access: yesMathematica Bohemica
We introduce some geometric properties of a horizontally conformal quasi-hemi-slant Riemannian submersion from a Sasakian manifold, normal to the characteristic vector field, supported by an example.
Fortuné Massamba, Pontsho Moile
doaj   +1 more source

Recovery of time dependent coefficients from boundary data for hyperbolic equations

open access: yes, 2019
We study uniqueness of the recovery of a time-dependent magnetic vector-valued potential and an electric scalar-valued potential on a Riemannian manifold from the knowledge of the Dirichlet to Neumann map of a hyperbolic equation.
Feizmohammadi, Ali   +3 more
core  

A characterization of harmonic foliations by the volume preserving property of the normal geodesic flow

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2002
We prove that a Riemannian foliation with the flat normal connection on a Riemannian manifold is harmonic if and only if the geodesic flow on the normal bundle preserves the Riemannian volume form of the canonical metric defined by the adapted connection.
Hobum Kim
doaj   +1 more source

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