On Polynomial Rings Over Nil Rings in Several Variables and the Central Closure of Prime Nil Rings

Fuente: arXiv
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Main Authors: Chebotar, Mikhail, Ke, Wen-Fong, Lee, Pjek-Hwee, Puczylowski, Edmund R.
Format: Preprint
Published: 2016
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author Chebotar, Mikhail
Ke, Wen-Fong
Lee, Pjek-Hwee
Puczylowski, Edmund R.
author_facet Chebotar, Mikhail
Ke, Wen-Fong
Lee, Pjek-Hwee
Puczylowski, Edmund R.
contents We prove that the ring of polynomials in several commuting indeterminates over a nil ring cannot be homomorphically mapped onto a ring with identity, i.e. it is Brown-McCoy radical. It answers a question posed by Puczylowski and Smoktunowicz. We also show that the central closure of a prime nil ring cannot be a simple ring with identity solving a problem due to Beidar.
format Preprint
id arxiv_https___arxiv_org_abs_1610_02321
institution arXiv
publishDate 2016
record_format arxiv
spellingShingle On Polynomial Rings Over Nil Rings in Several Variables and the Central Closure of Prime Nil Rings
Chebotar, Mikhail
Ke, Wen-Fong
Lee, Pjek-Hwee
Puczylowski, Edmund R.
Rings and Algebras
We prove that the ring of polynomials in several commuting indeterminates over a nil ring cannot be homomorphically mapped onto a ring with identity, i.e. it is Brown-McCoy radical. It answers a question posed by Puczylowski and Smoktunowicz. We also show that the central closure of a prime nil ring cannot be a simple ring with identity solving a problem due to Beidar.
title On Polynomial Rings Over Nil Rings in Several Variables and the Central Closure of Prime Nil Rings
topic Rings and Algebras
url https://arxiv.org/abs/1610.02321