Cohen-type theorem for adequacy and elementary divisor rings

Author: Zabavs’kyi B.   Komarnyts’kyi M.  

Publisher: Springer Publishing Company

ISSN: 1072-3374

Source: Journal of Mathematical Sciences, Vol.167, Iss.1, 2010-05, pp. : 107-111

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Abstract

We introduce the notion of a relatively adequate element of a commutative ring, which is not necessary a domain, investigate properties of such elements, and on the basis of this, propose the characterization of absolutely adequate elements. In particular, we prove that an adequate Bezout ring has a stable rank that is not higher than 2. As a consequence, it is stated that the adequate Bezout ring is a ring of elementary divisors.