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单词 ValuationDomain
释义

valuation domain


An integral domainMathworldPlanetmath R is a valuation domain if for all a,bR, either a|b or b|a. Equivalently, an integral domain is a valuation domain if for any x in the field of fractionsMathworldPlanetmath of R, xRx-1R.

Some properties:

  • A valuation domain is a discrete valuation ring (DVR) if and only if it is a principal ideal domainMathworldPlanetmath (PID) if and only if it is NoetherianPlanetmathPlanetmathPlanetmath.

  • Every valuation domain is a Bezout domain, though the converse is not true. For a partial converse, any local Bezout domain is a valuation domain.

  • Valuation domains are integrally closedMathworldPlanetmath.

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更新时间:2025/5/4 15:22:31