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整环的赋值扩环及赋值维数 被引量:3

On Valuative Dimension of Domains
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摘要 设R是整环,其商域为K.dimv(R)表示R的赋值维数.证明了:(1)dimv(R)是R的维数互异的既是UMT整环,又是DW整环的扩环升链RmRm-1…R1R0=K的长度的上确界;(2)dimv(R/P)≤dimv(R)-htvP,其中P是R的素理想,htvP是P的赋值高度;(3)对于强Milnor方图RDTF,dimv(R)=max{htvM+dimv(D),dimv(T)},其中M是R与T的公共素理想. Let R be a domain. It is shown that the valuative dimension of R is the supremum of the length of all chains of both UMT overrings and DW overrings of R and dimv(R/P)≤dimv(R)-htvP, where P is a prime ideal of R. For a strong Milnor square RDTF, it is shown that dimv(R)=max{htvM+dimv(D),dimv(T)}, where M is the common prime ideal of R and T .
作者 王芳贵
出处 《四川师范大学学报(自然科学版)》 CAS CSCD 北大核心 2010年第4期419-425,共7页 Journal of Sichuan Normal University(Natural Science)
基金 国家自然科学基金(10671137) 教育部博士点专项科研基金(20060636001)资助项目
关键词 整环 赋值扩环 赋值维数 domain valuation overring valuative dimension
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参考文献22

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二级参考文献27

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