Computing basis of solutions of any Mahler equation

Fuente: arXiv
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Autores principales: Faverjon, Colin, Poulet, Marina
Formato: Preprint
Publicado: 2025
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author Faverjon, Colin
Poulet, Marina
author_facet Faverjon, Colin
Poulet, Marina
contents Mahler equations arise in a wide range of contexts including the study of finite automata, regular sequences, algebraic series over Fp(z), and periods of Drinfeld modules. Introduced a century ago by K. Mahler to study the transcendence of certain complex numbers, they have recently been the subject of several works establishing a deep connection between such transcendence properties and the nature of their solutions. While numerous studies have investigated these solutions, existing algorithms can only compute them in specific rings: rational functions, power series, Puiseux series, or Hahn series. This paper solves the problem by providing an algorithm that computes a complete basis of solutions for any Mahler equation, along with a decomposition of each solution over the field of Puiseux series. Along the way, we describe an algorithm that computes a fundamental matrix of solutions for any Mahler system.
format Preprint
id arxiv_https___arxiv_org_abs_2511_18877
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Computing basis of solutions of any Mahler equation
Faverjon, Colin
Poulet, Marina
Symbolic Computation
Number Theory
Mahler equations arise in a wide range of contexts including the study of finite automata, regular sequences, algebraic series over Fp(z), and periods of Drinfeld modules. Introduced a century ago by K. Mahler to study the transcendence of certain complex numbers, they have recently been the subject of several works establishing a deep connection between such transcendence properties and the nature of their solutions. While numerous studies have investigated these solutions, existing algorithms can only compute them in specific rings: rational functions, power series, Puiseux series, or Hahn series. This paper solves the problem by providing an algorithm that computes a complete basis of solutions for any Mahler equation, along with a decomposition of each solution over the field of Puiseux series. Along the way, we describe an algorithm that computes a fundamental matrix of solutions for any Mahler system.
title Computing basis of solutions of any Mahler equation
topic Symbolic Computation
Number Theory
url https://arxiv.org/abs/2511.18877