Cheeger Gromoll type metrics on the tangent bundle
arXiv:math/0610028
Abstract
In this paper we study a Riemanian metric on the tangent bundle of a Riemannian manifold which generalizes the Cheeger Gromoll metric and a compatible almost complex structure which together with the metric confers to a structure of locally conformal almost Kählerian manifold. We found conditions under which is almost Kählerian, locally conformal Kählerian or Kählerian or when has constant sectional curvature or constant scalar curvature.
9 pages. to appear in Proceedings of fifth international symposium BioMathsPhys, Iasi, June 16-17, 2006