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UID:5266@i2m.univ-amu.fr
DTSTART;TZID=Europe/Paris:20241018T110000
DTEND;TZID=Europe/Paris:20241018T120000
DTSTAMP:20241007T093512Z
URL:https://www.i2m.univ-amu.fr/evenements/seminaire-rauzy-2024-10-18/
SUMMARY:Martin Lustig (i2m\, université d'Aix-Marseille\,): Desubstitution
  and recognizability for free groups and free monoids
DESCRIPTION:Martin Lustig: Inspired by recent results regarding recognizabi
 lity and desubstitution (these terms will be explained) for morphisms of f
 ree monoids\, analogous questions for (injective) homomorphisms of free gr
 oups will be considered. The results presented in the talk include a surpr
 ising relation to the celebrated Hanna-Neumann conjecture for subgroups of
  free groups\, and as an upshot\, we go back to free monoids and ask\, whe
 ther some of the methods and insights obtained in the free group setting m
 ay be valid or helpful in this cousin world.
CATEGORIES:Séminaire,Rauzy
LOCATION:Saint-Charles - FRUMAM  (2ème étage)\, 3 Place Victor Hugo\, Mar
 seille\, 13003\, France
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 ille\, 13003\, France;X-APPLE-RADIUS=100;X-TITLE=Saint-Charles - FRUMAM  (
 2ème étage):geo:0,0
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DTSTART:20240331T030000
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