Separation cut-off phenomenon for Brownian motions in high dimensional harmonic manifolds
Date(s) : 10/03/2026 iCal
14h30 - 15h30
The cut-off phenomenon for Markov processes
is about the abrupt transition to equilibrium.
During this talk,
I aim to explain how this phenomenon
can be studied in the case
of Brownian motions in Riemannian manifolds
by considering the absorption time
of some well constructed dual processes
with domain values.
In particular this method
is quite well adapted
for harmonic manifolds,
for which the volume form is radial.
I will thus give some results
obtained in this particular case.
Emplacement
I2M Saint-Charles - Salle de séminaire
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