Constructing Bach Flat Manifolds of signature $(2,2)$ using the modified Riemannian extension
Differential Geometry
2019-02-20 v1
Abstract
We use the modified Riemannian extension of an affine surface to construct Bach flat manifolds. As all these examples are VSI (vanishing scalar invariants), we shall construct scalar invariants which are not of Weyl type to distinguish them. We illustrate this phenomena in the context of homogeneous affine surfaces.
Keywords
Cite
@article{arxiv.1807.09218,
title = {Constructing Bach Flat Manifolds of signature $(2,2)$ using the modified Riemannian extension},
author = {E. Calviño-Louzao and E. García-Río and P. Gilkey and I. Gutiérrez-Rodríguez and R. Vázquez-Lorenzo},
journal= {arXiv preprint arXiv:1807.09218},
year = {2019}
}