Comptes Rendus
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Relations algébriques entre valeurs de E-fonctions ou de M-fonctions
Comptes Rendus. Mathématique, Volume 362 (2024), pp. 1215-1241.

Nous montrons que toutes les relations algébriques sur ¯ entre les valeurs prises par des E-fonctions de Siegel en un point algébrique non nul sont d’origine fonctionnelle, en ce sens qu’elles s’obtiennent par dégénérescence de relations algébro-différentielles sur ¯(z) entre les fonctions considérées. Nous obtenons un résultat analogue pour les M q -fonctions de Mahler, dans lequel les relations dites σ q -algébriques se substituent aux relations algébro-différentielles. Nous donnons également plusieurs conséquences de ce résultat, notamment concernant certains phénomènes de descente. Le point de vue adopté révèle des similitudes frappantes entre la théorie des E-fonctions et celle des M q -fonctions.

We show that all algebraic relations over ¯ 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 ¯(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 σ 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.

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DOI : 10.5802/crmath.634
Classification : 11J81, 11J91
Mot clés : Transcendance, indépendance algébrique, $E$-fonctions de Siegel, $M$-fonctions de Mahler
Keywords: Transcendence, algebraic independence, Siegel $E$-functions, Mahler $M$-functions

Boris Adamczewski 1 ; Colin Faverjon 1

1 Univ Lyon, Université Claude Bernard Lyon 1, CNRS UMR 5208, Institut Camille Jordan, F-69622 Villeurbanne Cedex, France
Licence : CC-BY 4.0
Droits d'auteur : Les auteurs conservent leurs droits
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     title = {Relations alg\'ebriques entre valeurs de $E$-fonctions ou de $M$-fonctions},
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Boris Adamczewski; Colin Faverjon. Relations algébriques entre valeurs de $E$-fonctions ou de $M$-fonctions. Comptes Rendus. Mathématique, Volume 362 (2024), pp. 1215-1241. doi : 10.5802/crmath.634. https://comptes-rendus.academie-sciences.fr/mathematique/articles/10.5802/crmath.634/

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