Polynomial extensions of IDF-domains and of IDPF-domains

Authors:
P. Malcolmson and F. Okoh

Journal:
Proc. Amer. Math. Soc. **137** (2009), 431-437

MSC (2000):
Primary 13F20, 13F15; Secondary 13F05, 13B25, 13G05

Published electronically:
August 18, 2008

MathSciNet review:
2448561

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Abstract | References | Similar Articles | Additional Information

Abstract: An integral domain is IDF if every non-zero element has only finitely many non-associate irreducible divisors. We investigate when IDF implies that the ring of polynomials is IDF. This is true when is Noetherian and integrally closed, in particular when is the coordinate ring of a non-singular variety. Some coordinate rings of singular varieties also give IDF. Analogous results for the related concept of IDPF are also given. The main result on IDF in this paper states that every countable domain embeds in another countable domain such that has no irreducible elements, hence vacuously IDF, and the polynomial ring is not IDF. This resolves an open question. It is also shown that some subrings of the ring of Gaussian integers known to be IDPF also have the property that is not IDPF.

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Additional Information

**P. Malcolmson**

Affiliation:
Department of Mathematics, Wayne State University, Detroit, Michigan 48202

Email:
petem@math.wayne.edu

**F. Okoh**

Affiliation:
Department of Mathematics, Wayne State University, Detroit, Michigan 48202

Email:
okoh@math.wayne.edu

DOI:
https://doi.org/10.1090/S0002-9939-08-09531-2

Keywords:
Factorization,
polynomials,
irreducible,
IDF,
IDPF

Received by editor(s):
October 3, 2005

Received by editor(s) in revised form:
January 18, 2008

Published electronically:
August 18, 2008

Communicated by:
Bernd Ulrich

Article copyright:
© Copyright 2008
American Mathematical Society

The copyright for this article reverts to public domain 28 years after publication.