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Abstract Over the past fifteen years, various ultra-precise photometric space missions have enriched stellar physics through asteroseismology. Listening carefully to stellar vibrations has proved to be a rich and acute tool, making it possible to …
17:45 to 18:45
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Abstract In the sixth of his Lettres philosophiques (1734), Voltaire offers an apology for the tolerance that reigns at the London Stock Exchange, where different faiths coexist peacefully : " There, the Jew, the Mohammedan and the Christian treat each …
14:30 to 15:30
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Abstract The peaks in elemental abundance observed in the solar system correspond to magic numbers and increased core stability. Apart from the light elements formed in the Big Bang, the elements are all formed in stars, most of them off the main …
16:45 to 17:45
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Program 13:00 → 13:20 - Welcoming remarks Michel BROUÉ : Welcoming remarks 13:30 → 14:20 - Abelian Tits Sets A Tits set is a pair (G,X) consisting of a group G and a conjugacy class X of subgroups satisfying certain conditions. It is called Abelian if the …
13:00 to 18:00
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Exploitation of rift resources in time and space Authors  : Lamya Khalidi (CNRS), Joséphine Lesur (Muséum national d'histoire naturelle), Virginie Tallio (Instituto Universitário de Lisboa), Jacques Varet (SARL Géo2D), Doris Barboni (CNRS), Cécile Doubre …
09:00 to 18:00
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Inauguration and presentation Collège de France , Arnaud Roffignon, Directeur général des services : welcome address CNRS , representatives of the Institute of Ecology & Environment (Agathe Euzen, Deputy Director of the Institute), the Institute of Human …
09:00 to 18:30
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Public round table at the Collège de France November 14   2023 6 pm     30 - 8 pm   h   30 Seven   young researchers, winners of the 2023 Collège de France science prizes, will take part in the round table discussion "   Young researchers   : what is the …
18:30 to 20:30
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Claude Lévi-Strauss Library of the Institut des Civilisations. The libraries and archives will be exceptionally closed from the morning of May 2 to the evening of Monday May 5, and from the evening of May 28 to the morning of Monday June …
Published on 30 April 2025
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We are pleased to announce an exceptional week devoted to the study of manuscripts and book culture in Arabic script, through two colloquia organized in Paris by the EPHE and the Collège de France. From Letters to Digits: The Legacy of Arabic Manuscripts …
Published on 30 April 2025
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10:00 to 11:00
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16:30 to 18:00
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Abstract In an ongoing collaboration with Pierre Germain and Tristan Léger, we are interested in the L2 - Lp norms of spectral projectors in small spectral windows on hyperbolic surfaces of infinite area. In the absence of "  cusps ", we obtain …
15:30 to 16:30
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Abstract Using PSL(2, R) representation theory, we study the temporal correlations of two observables propagated by the geodesic flow of a hyperbolic surface. If the observables are sufficiently regular, these correlations can be developed asymptotically …
14:00 to 15:15
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Abstract The oral modality is the most natural channel for linguistic interaction, but current language technologies (NLP) are mainly based on the written word, requiring large quantities of text to develop language models. Even voice assistants or speech …
11:00 to 12:00
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Abstract From " postcolonial " criticism to " decolonial " thinking Faced with " multiversity ", the challenge of open universalism The spectre of …
10:30 to 12:30
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Abstract Language models, a research direction independent of vector representation during the pre-neuronal era. Their recent evolution and encounter, up to neural contextual language models. Recurrent architectures (including LSTMs) and Transformer …
10:00 to 11:00
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11:00 to 12:00
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The lecture is recorded in audio format only. …
10:00 to 12:00
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Knowledge of ancient Egyptian essential. …
11:00 to 12:30
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Ivan Jablonka : "  L' exil forcé des enfants de la Réunion (années 1960 et 1970) " Sylvain Pattieu : "  Migration policy in overseas France : what is the assessment of the …
10:00 to 12:00
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Abstract Most stars have a magnetic field. If the star is cold, this magnetic field is dynamo, i.e. continuously generated by the star itself. If the star is hot, the field is of fossil origin, i.e. a relic of the star's formation. The presence of a …
17:45 to 18:45