Relations algébriques entre valeurs de $E$-fonctions ou de $M$-fonctions

We show that all algebraic relations over $\overline{\mathbb{Q}}$ between the values of Siegel $E$-functions at non-zero algebraic points have a functional origin, in the sense that they can be obtained by degeneracy of algebro-differential relations over $\overline{\mathbb{Q}}(z)$ between the funct...

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Bibliographic Details
Main Authors: Adamczewski, Boris, Faverjon, Colin
Format: Article
Language:English
Published: Académie des sciences 2024-11-01
Series:Comptes Rendus. Mathématique
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Online Access:https://comptes-rendus.academie-sciences.fr/mathematique/articles/10.5802/crmath.634/
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Summary:We show that all algebraic relations over $\overline{\mathbb{Q}}$ between the values of Siegel $E$-functions at non-zero algebraic points have a functional origin, in the sense that they can be obtained by degeneracy of algebro-differential relations over $\overline{\mathbb{Q}}(z)$ between the functions under consideration. We obtain a similar result for the Mahler $M_q$-functions, in which the algebro-differential relations are replaced by the $\sigma _q$-algebraic relations. We also give several consequences of this result, in particular with respect to certain descent phenomena. The point of view adopted reveals striking similarities between the theory of $E$-functions and that of $M_q$-functions.
ISSN:1778-3569