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X-WR-CALNAME:Institut de Mathématiques de Bourgogne - UMR 5584
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X-WR-CALDESC:Évènements pour Institut de Mathématiques de Bourgogne - UMR 5584
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BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260611T103000
DTEND;TZID=Europe/Paris:20260611T120000
DTSTAMP:20260610T122600
CREATED:20260216T090906Z
LAST-MODIFIED:20260610T091426Z
UID:79712-1781173800-1781179200@math.ube.fr
SUMMARY:Alexis Marchand\, "Stable commutator length\, spectral gaps\, and negative curvature in groups"
DESCRIPTION:Stable commutator length (scl) is a measure of homological complexity of group elements\, with connections to many topics in group theory and geometric topology\, including quasimorphisms\, bounded cohomology\, and circle actions. The first part of the talk will be a general introduction to scl and to some of these topicsIn the second part\, we will focus on spectral gaps and their relation with notions of negative curvature in group theory. We will present a geometric method to prove spectral gap results\, giving a new proof of a theorem of Heuer on the spectral gap of scl in right-angled Artin groups. We will explain the idea of the method and show how it works in the special case of free groups \nhttps://indico.math.cnrs.fr/event/16149/
URL:https://math.ube.fr/agenda/alexis-marchand-tba
CATEGORIES:Géométrie, Algèbre, Dynamique et Topologie
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BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260615T140000
DTEND;TZID=Europe/Paris:20260618T170000
DTSTAMP:20260610T122600
CREATED:20260610T091329Z
LAST-MODIFIED:20260610T093641Z
UID:83324-1781532000-1781802000@math.ube.fr
SUMMARY:Mathématiques pour l'Apprentissage Automatique en Bourgogne
DESCRIPTION:L’IMB organise le colloque Mathématiques pour l’Apprentissage Automatique en Bourgogne (15–18 juin 2026)\, une rencontre internationale à l’interface des fondements mathématiques et de l’IA moderne\, réunissant mathématiciens appliqués\, spécialistes du machine learning et chercheurs issus d’un large éventail de disciplines. \n\nhttps://indico.math.cnrs.fr/event/16785/
URL:https://math.ube.fr/agenda/mathematiques-pour-lapprentissage-automatique-en-bourgogne
LOCATION:Salle René Baire (Université Bourgogne Europe)
CATEGORIES:Conférences
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BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260616T103000
DTEND;TZID=Europe/Paris:20260616T113000
DTSTAMP:20260610T122600
CREATED:20260508T091057Z
LAST-MODIFIED:20260610T091355Z
UID:82280-1781605800-1781609400@math.ube.fr
SUMMARY:Fumihiko Nakano: Beta ensembles at high temperature
DESCRIPTION:Beta ensemble is one of the fundamental object in random matrix theory\, describing the Gibbs measure of 1dim $N$ particles under the log potential at inverse temperature $beta$. High temperature limit refers to consider $beta to 0$ limit such that $N beta = c$. By changing $c$\, it is expected to interpolate between the classical ($c=0$) and free ($c=infty$) probability theory. In this talk\, I will review them and mention our recent results on Markov Klein transform and finite free convolutions. This is a joint work with Khanh Duy Trinh\, Dung Hoang Trinh\, and Ziteng Wang \nhttps://indico.math.cnrs.fr/event/16565/
URL:https://math.ube.fr/agenda/fumihiko-nakano
CATEGORIES:Mathématique-Physique
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260619T090000
DTEND;TZID=Europe/Paris:20260619T180000
DTSTAMP:20260610T122600
CREATED:20260507T090620Z
LAST-MODIFIED:20260610T091330Z
UID:82244-1781859600-1781892000@math.ube.fr
SUMMARY:Journée scientifique de l’IMB
DESCRIPTION:Programme \n10h00–10h45 : Keyao Peng. 0 = 1 − 1 = −1 + 1 = 0\, de l’arithmétique élémentaire aux skein lasagnes intrinsèques11h00–11h45 : Jorge Becerra. Catégories module\, homologie de factorisation et algèbres de Frobenius12h00–14h00 : Repas partagé en « L’ancienne Salle du Conseil » de l’UFR Sciences & Techniques14h00–14h45 : Svetlana Roudenko. Ground states in dispersive equations : existence\, stability and branching15h00–15h45 : Yugang Zhang. Rigidité des mesures d’équilibre en dynamique complexe15H45-16H15 – Pause Café16h15–17h00 : Kang Liu. From Heat Equation to Generative Diffusion Models \n  \nhttps://indico.math.cnrs.fr/event/16557/
URL:https://math.ube.fr/agenda/journee-scientifique-de-limb
LOCATION:Amphithéatre PARIS (UFR SCIENCES ET TECHNIQUES – Bâtiment Mirande)
CATEGORIES:Conférences
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260623T103000
DTEND;TZID=Europe/Paris:20260623T113000
DTSTAMP:20260610T122600
CREATED:20260603T090802Z
LAST-MODIFIED:20260610T091355Z
UID:83104-1782210600-1782214200@math.ube.fr
SUMMARY:Campbell Wheeler
DESCRIPTION:https://indico.math.cnrs.fr/event/16742/
URL:https://math.ube.fr/agenda/campbell-wheeler
CATEGORIES:Mathématique-Physique
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20261006T103000
DTEND;TZID=Europe/Paris:20261006T113000
DTSTAMP:20260610T122600
CREATED:20260423T090850Z
LAST-MODIFIED:20260610T091355Z
UID:81781-1791282600-1791286200@math.ube.fr
SUMMARY:Simone Castellan
DESCRIPTION:https://indico.math.cnrs.fr/event/16484/
URL:https://math.ube.fr/agenda/simone-castellan
CATEGORIES:Mathématique-Physique
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20261008T160000
DTEND;TZID=Europe/Paris:20261008T170000
DTSTAMP:20260610T122600
CREATED:20260528T102300Z
LAST-MODIFIED:20260610T102206Z
UID:82909-1791475200-1791478800@math.ube.fr
SUMMARY:COLLOQUIUM Sylvain Crovisier "TBA"
DESCRIPTION:Speakers: Sylvain Crovisier (CNRS\, Paris-Saclay) \nTBA \nhttps://indico.math.cnrs.fr/event/16673/
URL:https://math.ube.fr/agenda/colloquium-sylvain-crovisier-tba
LOCATION:René Baire (IMB)\, René Baire (IMB)
CATEGORIES:Colloquium
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