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Finite factorization domains
Authors:D D Anderson  Bernadette Mullins
Institution:Department of Mathematics, The University of Iowa, Iowa City, Iowa 52242 ; Department of Mathematics, The University of Iowa, Iowa City, Iowa 52242
Abstract:An integral domain $R$ is a finite factorization domain if each nonzero element of $R$ has only finitely many divisors, up to associates. We show that a Noetherian domain $R$ is an FFD $\Leftrightarrow $ for each overring $R'$ of $R$ that is a finitely generated $R$-module, $U(R')/U(R)$ is finite. For $R$ local this is also equivalent to each $R/R:R']$ being finite. We show that a one-dimensional local domain $(R,M)$ is an FFD $\Leftrightarrow $ either $R/M$ is finite or $R$ is a DVR.

Keywords:Finite factorization domain (FFD)
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