PreprintCC BY 4.0arXiv
Transcendence of dendric beta-expansions with pure discrete spectrum
Abstract
We prove the transcendence of numbers that have β-expansions (in algebraic bases β) belonging to dendric shifts with pure discrete spectrum, under combinatorial conditions on their directive sequences of substitutions. This includes Arnoux-Rauzy sequences on arbitrary alphabets and Cassaigne-Selmer sequences. The proof uses Rauzy fractals and the subspace theorem.
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BibTeX
@misc{seo2026transcendence,
title = {{Transcendence of dendric beta-expansions with pure discrete spectrum}},
author = {Jihyuk Seo and Wolfgang Steiner},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.00856},
eprint = {2610.00856},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.00856},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Transcendence of dendric beta-expansions with pure discrete spectrum
AU - Jihyuk Seo
AU - Wolfgang Steiner
PY - 2026
DA - 2026/10/19
PB - arXiv
DO - 10.48550/arxiv.2610.00856
UR - https://arxiv.org/abs/2610.00856
AB - We prove the transcendence of numbers that have β-expansions (in algebraic bases β) belonging to dendric shifts with pure discrete spectrum, under combinatorial conditions on their directive sequences of substitutions. This includes Arnoux-Rauzy sequences on arbitrary alphabets and Cassaigne-Selmer sequences. The proof uses Rauzy fractals and the subspace theorem.
ER -