A note on algebraic commutators in division rings with uncountable center

Let $D$ be a division ring with uncountable center $C$. Suppose that \( K \) is a sub-division ring of \( D \) containing $C$ and that \( a \in D \setminus C \). The purpose of this paper is to prove that if either \( axa^{-1}x^{-1} \) or \( xy - yx \) is right algebraic over \( K \) for all \( x, y \in D \setminus \{0\} \), then \( D \) is also right algebraic over \( K \). This result provides the affirmative answers to \cite[Problems 1 and 5]{Pa_ChFoLe} for division rings with uncountable center.

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Publication Details

Journal
DOAJ (DOAJ: Directory of Open Access Journals)
Published
2026-10-01
DOI
https://doi.org/10.22060/ajmc.2025.23898.1324
Primary Topic
Rings, Modules, and Algebras
Type
article
Field-Weighted Citation Impact
0.00
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article

A note on algebraic commutators in division rings with uncountable center

Vo Hoang Minh Thu
DOAJ (DOAJ: Directory of Open Access Journals)
Rings, Modules, and Algebras
article

A note on algebraic commutators in division rings with uncountable center

Vo Hoang Minh Thu
article en

Abstract

Let $D$ be a division ring with uncountable center $C$. Suppose that \( K \) is a sub-division ring of \( D \) containing $C$ and that \( a \in D \setminus C \). The purpose of this paper is to prove that if either \( axa^{-1}x^{-1} \) or \( xy - yx \) is right algebraic over \( K \) for all \( x, y \in D \setminus \{0\} \), then \( D \) is also right algebraic over \( K \). This result provides the affirmative answers to \cite[Problems 1 and 5]{Pa_ChFoLe} for division rings with uncountable center.

DOAJ (DOAJ: Directory of Open Access Journals)
Openalex Percentile: Top 3%
Rings, Modules, and Algebras
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A note on algebraic commutators in division rings with uncountable center — Vo Hoang Minh Thu · DOAJ (DOAJ: Directory of Open Access Journals) (2026) | TGRS Research Map | TGRS