The KdV in Cosmology: a useful tool or a distraction?
classification
🌀 gr-qc
hep-th
keywords
equationarticleconsequencecosmologicalcosmologydemonstratederivativedeveloped
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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 Schr\"odinger equation.
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