Some cases of the Eisenbud-Green-Harris conjecture

Some cases of the Eisenbud-Green-Harris conjecture
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艾森巴德-格林-哈里斯猜想的一些例子

DOI:
10.4310/mrl.2008.v15.n3.a3
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发表时间:
2006
影响因子:
1
通讯作者:
D. Maclagan
D. Maclagan
中科院分区:
数学3区
文献类型:
--
作者:
G. Caviglia;D. Maclagan

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Eisenbud-Green-Harris猜想指出,在$\K[x_1,\dots,x_n]$中包含齐次正则序列$f_1,\dots,f_n $且$\deg(f_i)=a_i$的齐次理想与包含$x_i^{a_i}$的理想具有相同的希尔伯特函数,其中$1 \leq i \leq n$。本文证明了当$a_j > \sum_{i=1}^{j-1}(a_i-1)$,且$j>1$时的Eisenbud-Green-Harris猜想.这一结果是由两位作者独立获得的。
The Eisenbud-Green-Harris conjecture states that a homogeneous ideal in $\K[x_1,\dots,x_n]$ containing a homogeneous regular sequence $f_1,\dots,f_n$ with $\deg(f_i)=a_i$ has the same Hilbert function as an ideal containing $x_i^{a_i}$ for $1 \leq i \leq n$. In this paper we prove the Eisenbud-Green-Harris conjecture when $a_j > \sum_{i=1}^{j-1} (a_i-1)$ for all $j>1$. This result was independently obtained by the two authors.