The w-integral closure of integral domains |
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Affiliation: | 1. Department of Mathematics, University of Incheon, Incheon 402-749, Republic of Korea |
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Abstract: | Let D be an integral domain with quotient field K, the integral closure of D, X an indeterminate over D, and . Let w be the 1-operation on D defined by , and let . Then , called the w-integral closure of D, is an integrally closed overring of D. In this paper, we show that and . Using this result, we give several w-integral closure analogs of the integral closure. We also study the w-integral closure of UMT-domains and strong Mori domains. |
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