English

Weyl substructures and compatible linear connections

Differential Geometry 2009-05-05 v1 Mathematical Physics math.MP

Abstract

The aim of this paper is to study from the point of view of linear connections the data (M,D,g,W),(M,\mathcal{D},g,W), with MM a smooth (n+p)(n+p) dimensional real manifold, (D,g)(\mathcal{D},g) a \textit{nn}\textit{\emph{dimensional semi-Riemannian distribution}}\emph{}on M,M, G\mathcal{G} the conformal structure generated by gg and WW a Weyl substructure: a map W:W: G\mathcal{G}\to Ω1(M)\Omega^{1}(M) such that W(g)=W(g)du,W(\overline{g})=W(g)-du, g=eug;uC(M)\overline{g}=e^{u}g;u\in C^{\infty}(M). Compatible linear connections are introduced as a natural extension of similar notions from Riemannian geometry and such a connection is unique if a symmetry condition is imposed. In the foliated case the local expression of this unique connection is obtained. The notion of Vranceanu connection is introduced for a pair (Weyl structure, distribution) and it is computed for the tangent bundle of Finsler spaces, particularly Riemannian, choosing as distribution the vertical bundle of tangent bundle projection and as 1-form the Cartan form.

Keywords

Cite

@article{arxiv.0905.0362,
  title  = {Weyl substructures and compatible linear connections},
  author = {Oana Constantinescu and Mircea Crasmareanu},
  journal= {arXiv preprint arXiv:0905.0362},
  year   = {2009}
}

Comments

15 pages

R2 v1 2026-06-21T12:57:52.536Z