On the Hilbert depth of monomial ideals
On the Hilbert depth of monomial ideals
复制标题
论单项式理想的希尔伯特深度
DOI:
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发表时间:
2023
期刊:
影响因子:
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通讯作者:
Christian Krattenthaler
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作者:
Silviu Balanescu;Mircea Cimpoeaş;Christian Krattenthaler
Let $S=K[x_1,ldots,x_n]$ be the ring of polynomials over a field $K$. Given two monomial ideals $0subset Isubsetneq J subset S$, we present a new method to compute the Hilbert depth of $J/I$. As an application, we show that if $uin S$ is a monomial regular of $S/I$, then $operatorname{hdepth}(S/I)geq operatorname{hdepth}(S/(I,u))geq operatorname{hdepth}(S/I)-1.$ Also, we reprove the formula of the Hilbert depth of a squarefree Veronese ideal.