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Event
Abstract Ozone is a very minor atmospheric gas that protects life on Earth from the Sun's harmful ultraviolet rays. Its concentration is highest in the ozone layer located between 15 and 35 km above the Earth's surface. The fragile balance of ozone has …
11:00 to 12:00
Event
Abstract Although atmospheric composition has varied over very long time scales, today's atmosphere is essentially made up of nitrogen ( N2 ) and oxygen ( O2 ). The impact of human activity on the concentration of these gases is measurable but negligible. …
10:00 to 11:00
Berezinsky-Kosterlitz-Thouless transition at critical point
Collège de France prize-winners
Berezinsky-Kosterlitz-Thouless transition at critical point
Collège de France prize-winners
Guest lecturer
Series
Peccot Lecture Series Since 1885, thanks to an endowment from the family of mathematician Claude-Antoine Peccot, the Collège de France has awarded annual prizes to young mathematicians under the age of 30 who have distinguished themselves in theoretical …
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Event
This lecture, moved to 3 rue d'Ulm, has not been recorded. Abstract We continue our study of large random regular graphs by describing their diameters. We also prove B. Bollobás' theorem : the number of closed geodesics of given length on such a graph …
10:00 to 12:00
Series
Painting by Henri Testelin depicting Colbert presenting the members of the Académie des Sciences to Louis XIV. Echoing the title of this year's lecture , the title of the seminar is a double-entendre : it will address both " droit en science " and …
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Series
Can there be scientific and technological practice and progress without a public international law of science and technology, and without corresponding international institutions ? What, for example, should a public international law on artificial …
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Biblical discourses on origins (Genesis 1-11)
Thomas Römer, chair The Hebrew Bible and its Contexts
Biblical discourses on origins (Genesis 1-11)
Thomas Römer, chair The Hebrew Bible and its Contexts
Lecture
Series
Russian Bible engraved by Vassili Koren (1696). The legend in Russian reads : " On the seventh day he rested from all the work he had done. And God blessed the seventh day, sanctifying it, for on it he rested from all the work of creation that he had …
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Event
Guillaume Cuchet: "Recent trends in French Catholicism" Vincent Tiberj: "The muslims next door: the diversity of a religious minority" …
10:00 to 12:00
Event
Documents and média Download support …
14:00 to 16:00
Event
Abstract We present i) a necessary and sufficient condition of optimality for transport and ii) a regularization of Wasserstein distances. …
11:15 to 12:30
Series
flora i Fauna de magrove , (detail) 2021, Miquel Barceló. …
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Series
From the cover of Time Europe, January 15, 1979, drawing by Douglas Johnson. On December 2 1978, in a weekly report to President Carter, his National Security Advisor Zbigniew Brzeziński spoke of a " arc of crisis " stretching from Bangladesh to …
Event
Abstract This seminar will explore in detail the physical properties of Jupiter's Trojans. It will present NASA's LUCY mission, launched in 2021, which will encounter five Trojan objects between 2027 and 2033. We will also discuss the exciting discovery …
17:45 to 18:45
Event
One-hour lecture , followed by the seminar. Abstract After a brief introduction to the properties of the giant planets, we'll describe their satellite populations, focusing on the so-called " irregular " satellites due to their eccentric and inclined …
16:45 to 17:45
François-Marie Bréon
The Disrupted Carbon Cycle
François-Marie Bréon
The Disrupted Carbon Cycle
Opening lecture
Event
Abstract The increase in atmospheric CO 2 concentrations is the primary cause of the global warming observed over the past fifty years. However, the amounts of fossil carbon extracted from the ground and released into the atmosphere are small compared to …
18:00 to 19:00
News
To mark the publication of the collective work Genre et sciences in the " Colloques de rentrée " collection (co-published by Collège de France and Odile Jacob), Françoise Combes was a guest on the literary magazine " La Grande Librairie " on France 5 on …
Published on 28 November 2025
François Charton
Artificial intelligence and mathematics - How language models learn arithmetic
François Charton
Artificial intelligence and mathematics - How language models learn arithmetic
Seminar
Event
14:00 to 15:00