English

Response to a critique of "Cotton Gravity"

General Relativity and Quantum Cosmology 2024-01-25 v2 Cosmology and Nongalactic Astrophysics

Abstract

We address in this article the criticism in a recently submitted article by Clement and Noiucer (arXiv:2312.17662 [gr-qc]) on "Cotton Gravity" (CG), a gravity theory alternative to General Relativity. These authors claim that CG is "not predictive" for producing "too many" spherically symmetric vacuum solutions, while taking the Bianchi I vacuum as test case they argue that geometric constraint on the Cotton tensor lead to an undetermined problem, concluding in the end that CG "is not a physical theory". We provide arguments showing that this critique is incorrect and misrepresents the theory.

Keywords

Cite

@article{arxiv.2401.10479,
  title  = {Response to a critique of "Cotton Gravity"},
  author = {Roberto A Sussman and Carlo Alberto Mantica and Luca Guido Molinari and Sebastián Nájera},
  journal= {arXiv preprint arXiv:2401.10479},
  year   = {2024}
}

Comments

Important corrections and extra arguments added. 5 pages, all typos corrected