Why is the metric invertible?
General Relativity and Quantum Cosmology
2009-11-11 v1 High Energy Physics - Theory
Abstract
We raise, and provide an (unsatisfactory) answer to, the title's question: why, unlike all other fields, does the gravitational "metric" variable not have zero vacuum? After formulating, without begging it, we exhibit additions to the conventional action that express existence of the inverse through a field equation.
Cite
@article{arxiv.gr-qc/0603125,
title = {Why is the metric invertible?},
author = {S. Deser},
journal= {arXiv preprint arXiv:gr-qc/0603125},
year = {2009}
}
Comments
3 pages