The KdV in cosmology: A useful tool or a distraction?
Abstract
The letter is a response to the recent article by J. Lidsey. We demonstrate that the Schwarzian derivative technique developed therein is but a consequence of linearizabiliy of the original cosmological equations. Furthermore, we show the required linearized equation to be nothing else but a Schrödinger equation.
- Publication:
-
Gravitation and Cosmology
- Pub Date:
- April 2015
- DOI:
- 10.1134/S0202289315020127
- arXiv:
- arXiv:1405.6436
- Bibcode:
- 2015GrCo...21..166Y
- Keywords:
-
- General Relativity and Quantum Cosmology;
- High Energy Physics - Theory
- E-Print:
- 6 pages. Acknowledgment is added