Lower bounds for Hilbert-Kunz multiplicities in local rings of fixed dimension

Lower bounds for Hilbert-Kunz multiplicities in local rings of fixed dimension
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固定维数局部环中 Hilbert-Kunz 重数的下界

DOI:
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发表时间:
2007
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通讯作者:
Florian Enescu
Florian Enescu
中科院分区:
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文献类型:
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作者:
Ian M. Aberbach;Florian Enescu

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设(R,m)是维数为d的具有正素特征的形式非混合局部环.我们研究了具有小希尔伯特-昆兹多重性的含义(即,接近1)。特别是,我们表明,如果R是不规则的,存在一个下界,严格大于1,只取决于d,其希尔伯特-昆兹多重。
Let (R, m) be a formally unmixed local ring of positive prime characteristic and dimension d. We examine the implications of having small Hilbert-Kunz multiplicity (i.e., close to 1). In particular, we show that if R is not regular, there exists a lower bound, strictly greater than one, depending only on d, for its Hilbert-Kunz multiplicity.