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Conférence donnée dans le cadre du cycle "Un texte, une aventure mathématique".

Isabelle Gallagher, Présidente de la SMF vous adresse ses meilleurs vœux pour 2025.

Résumé : We construct two examples of projective K3[2] with an action of the alternating group $\mathcal{A}_7$. They are realized as double EPW-sextics and this allows us to construct two explic...

Résumé : Let $F$ be a non-archimedean local field with odd residual characteristic, $A$ be a central simple $F$-algebra, and $G$ be the multiplicative group of $A$. To construct types for comple...

Résumé : We prove that the $\infty$-category of surjections of animated rings is projectively generated, introduce and study the notion of animated PD-pairs - surjections of animated rings with ...

Résumé : Let G be a reductive algebraic group in classical types A, B, D. Let e be an element of the Lie algebra of G with Z ⊂ G its centralizer for the adjoint action. We assume that e identifi...