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Elasticity of factorizations in integral domains
Journal article   Open access   Peer reviewed

Elasticity of factorizations in integral domains

D. D Anderson and David F Anderson
Journal of pure and applied algebra, Vol.80(3), pp.217-235
1992
DOI: 10.1016/0022-4049(92)90144-5
url
https://doi.org/10.1016/0022-4049(92)90144-5View
Published (Version of record) Open Access

Abstract

For an atomic integral domain R , define ϱ ( R )= sup { m ⧸ n | x 1 ⋯ x m = y 1 ⋯ y n , each x i , y j ϵ R is irreducible}. We investigate ϱ( R ), with emphasis for Krull domains R . When R is a Krull domain, we determine lower and upper bounds for ϱ( R ); in particular, ϱ ( R )≤ max {| Cl ( R )|⧸ 2, 1}. Moreover, we show that for any real numbers r ≥1 or r =∞, there is a Dedekind domain R with torsion class group such that ϱ( R )= r .

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