arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2212.09528math.ACmath.CO
收藏

Artin单项理想极化研究

Polarizations of Artin monomial ideals

Universitetet i Bergen(卑尔根大学);University Of Kurdistan(库尔德斯坦大学)

Gunnar Fløystad, Ine Gabrielsen, Amir Mafi

AI总结:

研究证明Artin单项理想极化定义了三角形球体,推翻了Almousa等人的猜想,并展示了极化与Cohen-Macaulay子复形的关系,以及极化与超立方体分类的联系。

摘要:

本文证明了任何Artin单项理想极化定义了三角形球体,证明了Almousa等人猜想,并展示了极化与Cohen-Macaulay子复形的关系,以及极化与超立方体分类的联系。几何上,包含$(x_1^{a_1}, \ldots, x_n^{a_n})$的理想极化定义了球体上的满维三角形球体,该球体是不同维数简单形边界join的结果。我们证明了该球体的每一个满维Cohen-Macaulay子复形都是这种类型,且这些球体是可构造的。此类三角形球体具有一个对偶的细胞复杂度,它是不同维数简单形乘积的子复杂度。我们证明该细胞复杂度给出了该三角形球体的Alexander对偶理想 cellular 最小自由分辨率。当乘积的简单形是超立方体时,利用这些对偶细胞复杂度,我们对极化Artin单项理想进行了范围内的分类示例。我们还证明了Kalai的 squeezed balls 从Artin单项理想极化中得出。

英文摘要:

We show that any polarization of an Artin monomial ideal defines a triangulated ball. This proves a conjecture of A.Almousa, H.Lohne and the first author. Geometrically, polarizations of ideals containing $(x_1^{a_1}, \ldots, x_n^{a_n})$ define full-dimensional triangulated balls on the sphere which is the join of boundaries of simplices of dimensions $a_1-1, \cdots, a_n-1$. We prove that every full-dimensional Cohen-Macaulay sub-complex of this joined sphere is of this kind, and these balls are constructible. Such a triangulated ball has a dual cell complex which is a sub-complex of the product of simplices of dimensions $a_1-1, \cdots a_n-1$. We prove that this cell complex gives cellular minimal free resolution of this of the Alexander dual ideal of the triangulated ball. When the product of simplices is a hypercube, using these dual cell complexes we classify in a range examples all polarizations of the Artin monomial ideal. We also show that the squeezed balls of G.Kalai \cite{Ka} derive from polarizations of Artin monomial ideals.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑