General solution of Liouville's equation in Robertson-Walker space-times
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We obtain the general solution of Liouville's equation in Robertson-Walker space-times, based on Killing vector constants of the motion and a new time-dependent first integral. For photons the solution is generated by conformai Killing vectors.
|Number of pages||6|
|Journal||General Relativity and Gravitation|
|Publication status||Published - 1 Dec 1987|