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arXiv · 2607.24877

Transcendence of multivariate Mahler functions and algebraic relations between their values

Enzo Brechler
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Abstract

We study the functional properties of Mahler functions of several variables associated with a large class of Mahler transformations. We prove that these functions are always analytic on a neighborhood of zero, and meromorphic on the open unit ball in C^n , as well as in C_n^p for all primes p. This enables us to prove a rational-transcendental dichotomy for these functions. As a consequence, we strengthen the lifting theorem recently obtained by Adamczewski and Faverjon. This theorem allows us to systematically compute the algebraic relations between values of multivariate Mahler functions related by a Mahler system, given the algebraic relations between the functions themselves. Finally we prove a multivariate descent theorem in the case of regular points.

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Enzo Brechler. 2026-07-27. Transcendence of multivariate Mahler functions and algebraic relations between their values. https://arxiv.org/abs/2607.24877

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