Hahn series and Mahler equations: Algorithmic aspects

Fuente: arXiv
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Autori principali: Faverjon, C., Roques, Julien
Natura: Preprint
Pubblicazione: 2024
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author Faverjon, C.
Roques, Julien
author_facet Faverjon, C.
Roques, Julien
contents Many articles have recently been devoted to Mahler equations, partly because of their links with other branches of mathematics such as automata theory. Hahn series (a generalization of the Puiseux series allowing arbitrary exponents of the indeterminate as long as the set that supports them is well-ordered) play a central role in the theory of Mahler equations. In this paper, we address the following fundamental question: is there an algorithm to calculate the Hahn series solutions of a given linear Mahler equation? What makes this question interesting is the fact that the Hahn series appearing in this context can have complicated supports with infinitely many accumulation points. Our (positive) answer to the above question involves among other things the construction of a computable well-ordered receptacle for the supports of the potential Hahn series solutions.
format Preprint
id arxiv_https___arxiv_org_abs_2412_04928
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Hahn series and Mahler equations: Algorithmic aspects
Faverjon, C.
Roques, Julien
Symbolic Computation
Number Theory
Many articles have recently been devoted to Mahler equations, partly because of their links with other branches of mathematics such as automata theory. Hahn series (a generalization of the Puiseux series allowing arbitrary exponents of the indeterminate as long as the set that supports them is well-ordered) play a central role in the theory of Mahler equations. In this paper, we address the following fundamental question: is there an algorithm to calculate the Hahn series solutions of a given linear Mahler equation? What makes this question interesting is the fact that the Hahn series appearing in this context can have complicated supports with infinitely many accumulation points. Our (positive) answer to the above question involves among other things the construction of a computable well-ordered receptacle for the supports of the potential Hahn series solutions.
title Hahn series and Mahler equations: Algorithmic aspects
topic Symbolic Computation
Number Theory
url https://arxiv.org/abs/2412.04928