Monomial gorenstein curves in A4 as set-theoretic complete intersections

Monomial gorenstein curves in A4 as set-theoretic complete intersections
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A4 中的单项 gorenstein 曲线作为集合论完全交集

DOI:
10.1007/bf01507291
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发表时间:
1979
影响因子:
0.6
通讯作者:
H. Bresinsky
H. Bresinsky
中科院分区:
数学4区
文献类型:
--
作者:
H. Bresinsky

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摘要证明了素理想 $$P(S) \subseteq k[x_1 , \cdots ,x_4 ]$$ ,⋯,x4], k是任意域,具有一般零xi=tni, ni个正整数,且gcd = l, l≤i≤4,则如果数值半群S=对称(即如果P(S)在k[[x1,⋯,x4]]中的扩展是Gorenstein理想),则P(S)是集合论完全交。
AbstractIt is shown that if the prime ideal $$P(S) \subseteq k[x_1 , \cdots ,x_4 ]$$ ,⋯, x4], k an arbitrary field, has generic zero xi=tni, ni positive integers with g.c.d. equal l, l ≤ i ≤ 4, then P(S) is a set-theoretic complete intersection if the numerical semigroup S= is symmetric (i.e. if the extension of P(S) in k[[x1,⋯, x4]] is a Gorenstein ideal).