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Abstract Until the 20th   century, it seemed impossible to think about the relationship between art and money, the literati being those who refuse to alienate their pens. For a long time, the arts and letters constituted a world apart, opposed to …

Abstract Paul Valéry's lectures at the Collège de France were published by combining preparatory drafts of the lessons with verbatim transcriptions taken by a stenotypist paid by Gaston Gallimard, who had a very serious plan to publish them. Maurice …

Abstract This is a joint work with Amol Aggarwal and Patrick Lopatto. Lévy matrices are symmetric random matrices whose entry distributions lie in the domain of attraction of an α-stable law. For α<1, predictions from the physics literature suggest that …

The accounts of Commerson, Bougainville and Cook have engraved in the European imagination an idyllic image of the stay in Tahiti, a veritable paradise on earth, and of the hospitality offered by Tahitian men and women. However, a careful reading of the …

Marriage is the moment when a new nuclear family is formed. We'll look at the choice of spouse and the accompanying negotiations, followed by the rites and ceremonies surrounding marriage. Finally, we'll outline life within the couple, sometimes …

To solve the mean-field theory of spin glasses, Giorgio Parisi used the replica method, which still retains its share of mystery. To understand its content, and find an alternative solution that was more physical and better mathematically controllable , …

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Abstract In the years 2000, a theory of boundaries from dense graphs to " continuous " graphs (also called " graphons ") emerged, initiated in particular by Lovasz. This theory has been extended to random dense graphs (under the impetus of Diaconis and …

Mathematicians know that a vector space can be decomposed into orthogonal subspaces. Does the brain exploit this property ? The answer seems positive : distinct populations of neurons, or orthogonal vectors carried by the same neurons, often code for …

Abstract The law of international watercourses has been the subject of various codification efforts at regional and universal levels, envisaging international waters as shared natural resources. These instruments apply various principles and rules to the …

The seminar on January 19, 2023 is cancelled. An additional session will be held on Thursday, February 2 (usual times and room). …

A reminder of the Central Asian silver with Homeric subjects, co-studied with Anca Dan and seen last year. Sketch of new avenues of interpretation : moral lessons adapted to the local context ? A new example added to the debate : the Freer Gallery …

Abstract Greek and Roman thought developed two notions - epieikeia and aequitas - which are often translated, in modern languages, by a single term " l'équité ". Is this really a single notion ? This seminar explores epieikeia and aequitas - in the …

Abstract Challenges are proposed by public services, companies or scientific laboratories, and are based on real-life problems. Participants submit the results of their classification or prediction algorithms, which are then put into competition via the …

Abstract Statistical physics revolutionized the understanding of the macroscopic properties of physics by linking them to microscopic interactions. This made it possible to unify separate branches of 19th  century physics, such as mechanics, …

Abstract A parallel can be drawn between history and literature in the 18th   century through the paradigm of the foundling. At that time, a third of children were abandoned, mainly for reasons of poverty, illegitimacy or because their mother had died in …