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TZOFFSETFROM:+0100
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DTSTART:20250330T010000
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DTSTART:20251026T010000
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DTSTART;TZID=Europe/Paris:20251022T110000
DTEND;TZID=Europe/Paris:20251022T120000
DTSTAMP:20260409T020320
CREATED:20250929T090052Z
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UID:19913-1761130800-1761134400@www.math.ens.psl.eu
SUMMARY:Mathias Paulsen\, raconte-moi la conjecture de Griffiths et Harris !
DESCRIPTION:I will tell you about a conjecture by Griffiths and Harris from 1985 concerning the degree of curves on 3-dimensional hypersurfaces\, and how this conjecture is related to the failure of the integral Hodge conjecture for these varieties. I will then explain how to prove some cases of their conjecture using a degeneration technique by Kollár\, and how to generalize this result to higher dimensions. Finally\, I want to end with some open questions.
URL:https://www.math.ens.psl.eu/evenement/mathias-paulsen-que-vas-tu-nous-raconter/
LOCATION:Salle W toits du DMA
CATEGORIES:Algèbre et géométrie,Séminaire Raconte-moi
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