English

A note on post-Riemannian structures of spacetime

General Relativity and Quantum Cosmology 2007-05-23 v1

Abstract

A four-dimensional differentiable manifold is given with an arbitrary linear connection Γαβ=Γiαβdxi\Gamma_\alpha^\beta=\Gamma_{i\alpha}^\beta dx^i. Megged has claimed that he can define a metric GαβG_{\alpha\beta} by means of a certain integral equation such that the connection is compatible with the metric. We point out that Megged's implicite definition of his metric GαβG_{\alpha\beta} is equivalent to the assumption of a vanishing nonmetricity. Thus his result turns out to be trivial.

Keywords

Cite

@article{arxiv.gr-qc/9708007,
  title  = {A note on post-Riemannian structures of spacetime},
  author = {Friedrich W. Hehl and Uwe Muench},
  journal= {arXiv preprint arXiv:gr-qc/9708007},
  year   = {2007}
}

Comments

3 pages, LaTeX, no figures, reply to gr-qc/9706068

R2 v1 2026-07-22T12:53:25.182Z