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Abstract:
An integral domain R is an almost Bezout domain (respectively, almost valuation domain) if for each pair a, b e R\{0}, there is a positive integer n = n(a,b) such that (an,bn) is principal (respectively, an | bn or bn | an). We show that a finite intersection of almost valuation domains with the same quotient field is an almost Bezout domain. This generalizes the result that a finite intersection of valuation domains with the same quotient field is a Bezout domain. We use our work to give a new characterization of Cohen-Kaplansky domains.
Key Words: Almost Bezout domain, CK-domain, weakly factorial domain.
2000 Mathematics Subject Classification: Primary: 13G05, 13F05, Secondary: 13F30, 13A15.
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