The Kaplansky condition and rings of almost stable range 1

Research output: Contribution to journalArticlepeer-review

Abstract

We present some variants of the Kaplansky condition for a K-Hermite ring R to be an elementary divisor ring. For example, a commutative K-Hermite ring R is an EDR iff for any elements x,y, z Ie{cyrillic, ukrainian} R such that (x, y) = R there exists an element λ Ie{cyrillic, ukrainian} R such that x + λy = uv, where (u,z) = (v, 1 - z) = R. We present an example of a Bezout domain that is an elementary divisor ring but does not have almost stable range 1, thus answering a question of Warren Wm. McGovern.

Original languageEnglish
Pages (from-to)3013-3018
Number of pages6
JournalProceedings of the American Mathematical Society
Volume141
Issue number9
DOIs
StatePublished - 2013

Keywords

  • Almost stable range 1
  • Elementary divisor ring
  • K-Hermite
  • Kaplansky condition
  • Stable range

ASJC Scopus subject areas

  • General Mathematics
  • Applied Mathematics

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