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Main Author: Teissier, Bernard
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2509.06379
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author Teissier, Bernard
author_facet Teissier, Bernard
contents Let $R$ be a complete equicharacteristic noetherian local domain with an algebraically closed residue field $k$. Let $ν$ be a zero dimensional valuation of rank one centered in $R$ with value group $Φ$. We show that there is a valuation preserving embedding of $R$ in the ring $k[[t^{Φ_{\geq 0}}]]$ of Hahn series. The method relies on torific local uniformization for rational valuations with finitely generated semigroup and the approximation of rational valuations by semivaluations with finitely generated semigroup.
format Preprint
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publishDate 2025
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spellingShingle On Kaplansky's Embedding Theorem
Teissier, Bernard
Commutative Algebra
Algebraic Geometry
Let $R$ be a complete equicharacteristic noetherian local domain with an algebraically closed residue field $k$. Let $ν$ be a zero dimensional valuation of rank one centered in $R$ with value group $Φ$. We show that there is a valuation preserving embedding of $R$ in the ring $k[[t^{Φ_{\geq 0}}]]$ of Hahn series. The method relies on torific local uniformization for rational valuations with finitely generated semigroup and the approximation of rational valuations by semivaluations with finitely generated semigroup.
title On Kaplansky's Embedding Theorem
topic Commutative Algebra
Algebraic Geometry
url https://arxiv.org/abs/2509.06379