Add to ORKGWe deal with a 2m-dimensional Riemannian manifold (M,g) structured by an affine con-nection and a vector field , defining a -parallel connection. It is proved that is both a torse forming vector field and an exterior concurrent vector field. Properties of the curva-ture 2-forms are established. It is shown that M is endowed with a conformal symplectic structure Ω and defines a relative conformal transformation of Ω. 2000 Mathematics Subject Classification: 53B05, 53C05, 53D05. 1. Introduction. In [5
We reduce CR-structures on smooth elliptic and hyperbolic manifolds of CR-codimension 2 to paralleli...
Abstract. Geometrical and structural properties are proved for even-dimensional manifolds which are ...
We shall prove that there are locally conformal symplectic structures on products of two even-dimens...
We deal with a 2m-dimensional Riemannian manifold (M,g) structured by an affine con-nection and a ve...
We deal with a 2m-dimensional Riemannian manifold (M,g) structured by an affine con...
In this note one studies some types of vector fields on a Riemmannian manifold $M$ endowed with a Le...
We deal with a locally conformal cosymplectic manifold M(φ,Ω,ξ,η,g) admitting a conformal contact qu...
(*socio aggregato) ABSTRACT. Let be a -dimensional Riemannian manifold and let be the Levi-Ci...
In the previous paper [4] we have studied of the formulation of D-affine connec-tion. In the present...
Here we present some simple manifolds with affine connections to get some feeling for how things lik...
Abstract. We construct a family of canonical connections and surrounding basic theory for almost com...
The aim of this paper is to review and to obtain results about flat locally homogeneous affine conne...
Abstract. We construct a family of canonical connections and surrounding basic theory for almost com...
For a conformal manifold we introduce the notion of an ambient connection, an affine connection on a...
For two-dimensional manifold M with locally symmetric connection ∇ and with ∇-parallel volume elemen...
We reduce CR-structures on smooth elliptic and hyperbolic manifolds of CR-codimension 2 to paralleli...
Abstract. Geometrical and structural properties are proved for even-dimensional manifolds which are ...
We shall prove that there are locally conformal symplectic structures on products of two even-dimens...
We deal with a 2m-dimensional Riemannian manifold (M,g) structured by an affine con-nection and a ve...
We deal with a 2m-dimensional Riemannian manifold (M,g) structured by an affine con...
In this note one studies some types of vector fields on a Riemmannian manifold $M$ endowed with a Le...
We deal with a locally conformal cosymplectic manifold M(φ,Ω,ξ,η,g) admitting a conformal contact qu...
(*socio aggregato) ABSTRACT. Let be a -dimensional Riemannian manifold and let be the Levi-Ci...
In the previous paper [4] we have studied of the formulation of D-affine connec-tion. In the present...
Here we present some simple manifolds with affine connections to get some feeling for how things lik...
Abstract. We construct a family of canonical connections and surrounding basic theory for almost com...
The aim of this paper is to review and to obtain results about flat locally homogeneous affine conne...
Abstract. We construct a family of canonical connections and surrounding basic theory for almost com...
For a conformal manifold we introduce the notion of an ambient connection, an affine connection on a...
For two-dimensional manifold M with locally symmetric connection ∇ and with ∇-parallel volume elemen...
We reduce CR-structures on smooth elliptic and hyperbolic manifolds of CR-codimension 2 to paralleli...
Abstract. Geometrical and structural properties are proved for even-dimensional manifolds which are ...
We shall prove that there are locally conformal symplectic structures on products of two even-dimens...