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Abstract
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We prove that the probability measure induced by the BBM flow satisfies a
logarithmic Sobolev type inequality. Precisely, we suppose the initial
data induces a
Gaussian measure on
with
for
. Then the induced
measure
under BBM
flow satisfies, for any
small enough,
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where
is
an
-dependent
constant.
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Keywords
Hamiltonian flows, BBM equation, log-Sobolev inequalities
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Mathematical Subject Classification 2010
Primary: 35B99
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Milestones
Received: 20 August 2018
Revised: 8 March 2019
Accepted: 30 October 2019
Published: 17 March 2020
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