Phase mixing and the Vlasov equation in cosmology

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Event details

Date 20.02.2026
Hour 14:15
Speaker Dr. Renato Velozo Ruiz, Imperal College London - UK
Location
Category Conferences - Seminars
Event Language English

In this talk, we will consider the Vlasov equation on expanding isotropic homogeneous tori described by the Friedmann–Lemaître–Robertson–Walker cosmological spacetimes. For expansion rate tq, with 0 < q ≤ 1/2 (excluding some exceptional values), we show that the difference of a time-normalised spatial density with the spatial average decays with a quantitative rate depending on the regularity of the initial datum.
This is joint work with Martin Taylor (Imperial College London).