8 citations · 11 across the 4 of their papers we have counts for
5 papers · 1 filter
On the Bochner technique for singular distributions
Paul Popescu, Vladimir Rovenski, Sergey Stepanov
In this paper we continue our recent study of a manifold endowed with a singular or regular distribution, determined as the image of the tangent bundle under a smooth endomorphism,…
An integral formula for a pair of singular distributions
Paul Popescu, Vladimir Rovenski
The paper is devoted to differential geometry of singular distributions (i.e., of varying dimension) on a Riemannian manifold. Such distributions are defined as images of the tange…
Almost Lie Algebroids and Characteristic Classes
Marcela Popescu, Paul Popescu
Almost Lie algebroids are generalizations of Lie algebroids, when the Jacobiator is not necessary null. A simple example is given, for which a Lie algebroid bracket or a Courant bu…
Coeffective basic cohomologies of --contact and Sasakian manifolds
Cristian Ida, Paul Popescu
In this paper we define coeffective de Rham cohomology for basic forms on a --contact or Sasakian manifold and we discuss its relation with usually basic cohomology of .…
Foliated vector bundles and riemannian foliations
Paul Popescu, Marcela Popescu
The purpose of this Note is to prove that each of the following conditions is equivalent to that of the foliation is riemannian: 1) the lifted foliation o…