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Hilbert series of simple thin polyominoes
Journal of Algebraic Combinatorics ( IF 0.6 ) Pub Date : 2021-02-05 , DOI: 10.1007/s10801-021-01017-x Giancarlo Rinaldo , Francesco Romeo
中文翻译:
希尔伯特系列的简单薄多胺
更新日期:2021-02-05
Journal of Algebraic Combinatorics ( IF 0.6 ) Pub Date : 2021-02-05 , DOI: 10.1007/s10801-021-01017-x Giancarlo Rinaldo , Francesco Romeo
Let \(\mathcal {P}\) be a simple thin polyomino, namely a polyomino that has no holes and does not contain a square tetromino as a subpolyomino. In this paper, we determine the reduced Hilbert–Poincaré series \(h(t)/(1-t)^d\) of \(K[\mathcal {P}]\) by proving that h(t) is the rook polynomial of \(\mathcal {P}\). As an application, we characterize the Gorenstein simple thin polyominoes.
中文翻译:
希尔伯特系列的简单薄多胺
令\(\ mathcal {P} \)是一个简单的薄型多米诺骨牌,即没有孔且不包含方形四聚体作为亚多米诺骨牌的多米诺骨牌。在本文中,我们通过证明h(t)是H(t)是H(t)的简化希尔伯特-庞加莱级数\(h(t)/(1-t)^ d \)的\(K [\ mathcal {P}] \)来确定。\(\ mathcal {P} \)的rook多项式。作为一种应用,我们表征了戈伦施泰因简单的稀聚氨基酸。