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UID:8945@i2m.univ-amu.fr
DTSTART;TZID=Europe/Paris:20260217T143000
DTEND;TZID=Europe/Paris:20260217T153000
DTSTAMP:20260122T132129Z
URL:https://www.i2m.univ-amu.fr/evenements/tba-253/
SUMMARY:Léo HAHN (Université de Neuchâtel): Convergence of non-reversibl
 e Markov processes via lifting and flow Poincaré inequality
DESCRIPTION:Léo HAHN: We propose a general approach for quantitative conve
 rgence analysis of non-reversible Markov processes\, based on the concept 
 of second-order lifts and a variational approach to hypocoercivity. To thi
 s end\, we introduce the flow Poincaré inequality\, a space-time Poincar
 é inequality along trajectories of the semigroup\, and a general divergen
 ce lemma based only on the Dirichlet form of an underlying reversible diff
 usion. We demonstrate the versatility of our approach by applying it to a 
 pair of run-and-tumble particles with jamming\, a model from non-equilibri
 um statistical mechanics\, and several piecewise deterministic Markov proc
 esses used in sampling applications\, in particular including general stoc
 hastic jump kernels.\n\nThis is a joint work with Andreas Eberle\, Arnaud 
 Guillin\, Francis Lörler and Manon Michel)
CATEGORIES:Séminaire,ALEA,Probabilités
LOCATION:I2M Saint-Charles - Salle de séminaire\, Université Aix-Marseill
 e\, Campus Saint-Charles\, 3 Place Victor Hugo\, Marseille\, 13003\, Franc
 e
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  Campus Saint-Charles\, 3 Place Victor Hugo\, Marseille\, 13003\, France;X
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DTSTART:20251026T020000
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