Conformally Einstein Products and Nearly K\"ahler Manifolds
Differential Geometry
2019-01-08 v4
Abstract
In the first part of this note we study compact Riemannian manifolds (M,g) whose Riemannian product with R is conformally Einstein. We then consider compact 6--dimensional almost Hermitian manifolds of type W_1+W_4 in the Gray--Hervella classification admitting a parallel vector field and show that (under some regularity assumption) they are obtained as mapping tori of isometries of compact Sasaki-Einstein 5-dimensional manifolds. In particular, we obtain examples of inhomogeneous locally (non-globally) conformal nearly K\"ahler compact manifolds.
Keywords
Cite
@article{arxiv.math/0610599,
title = {Conformally Einstein Products and Nearly K\"ahler Manifolds},
author = {Andrei Moroianu and Liviu Ornea},
journal= {arXiv preprint arXiv:math/0610599},
year = {2019}
}