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X-WR-CALNAME:[gt.go] - 'On a recolouring version of Hadwiger's conjecture' 
 by Clément Legrand-Duchesne
X-WR-TIMEZONE:Europe/Paris
BEGIN:VTIMEZONE
TZID:Europe/Paris
TZUNTIL:20231029T010000Z
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TZNAME:CET
DTSTART:20201025T030000
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
RDATE:20211031T030000
RDATE:20221030T030000
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TZOFFSETTO:+0200
RDATE:20220327T020000
RDATE:20230326T020000
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UID:ddfd0643-0721-4899-8fd0-9ce8f2c85da5
DTSTAMP:20260404T190514Z
CLASS:PUBLIC
DESCRIPTION:/Exposé en anglais/Talk in english/ \n\nWe prove that for any e
 psilon > 0\, for any large enough t\, there is a graph G that admits no Kt
 -minor but admits a (3/2 - epsilon)t-colouring that is 'frozen' with respe
 ct to Kempe changes\, i.e. any two colour classes induce a connected compo
 nent. This disproves three conjectures of Las Vergnas and Meyniel from 198
 1. \n\n\n[Clément Legrand-Duchesne] (LaBRI) \n\nhttps://www.labri.fr/perso
 /clemlegrand/ \n\n\n{Remarques/Remarks} \n\n▼ \nCet exposé sera enregistré
 \, merci de désactiver votre webcam et micro si vous ne souhaitez pas appa
 raître sur l'enregistrement. Les échanges informels avant et après l'expos
 é\, ainsi que les questions\, ne seront pas enregistrés. \n\nN'hésitez pas
  à venir un peu avant le début de l'exposé pour faire des tests (et discut
 er informellement). Nous auront également des discussions informelles post
 -GT. \n\nÀ très bientôt\, \n\nMarthe & Jonathan \n\nRetrouvez toutes les i
 nformations du GT dématérialisé sur https://combalgo.labri.fr/pmwiki.php/G
 roupe/GT-en-LIGNE \n\n\n▼ \nThis presentation will be recorded\, please de
 activate your webcam and microphone if you do not wish to appear on the re
 cording. Informal exchanges before and after the presentation\, as well as
  questions\, will not be recorded. \n\nDo not hesitate to come a little be
 fore the start of the presentation to test (and chat informally). We will 
 also have informal post-working group discussions. \n\nSee you soon\, \n\n
 Marthe & Jonathan \n\nFind all the information of the dematerialized worki
 ng group on the web page https://combalgo.labri.fr/pmwiki.php/Groupe/GT-en
 -LIGNE
DTSTART;TZID=Europe/Paris:20211015T140000
DTEND;TZID=Europe/Paris:20211015T150000
LOCATION:A30/178 et sur https://u-bordeaux-fr.zoom.us/j/4939941120
SEQUENCE:0
SUMMARY:[gt.go] - 'On a recolouring version of Hadwiger's conjecture' by Cl
 ément Legrand-Duchesne
TRANSP:OPAQUE
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