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arXiv 2008.02896math.COmath.AC
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多米诺平铺的二项式理想

Binomial ideals of domino tilings

Elizabeth Gross, Nicole Yamzon

摘要:

本文考虑了一个剖分区域的所有多米诺平铺的集合。我们探索的主要问题是:我们如何从一个瓷砖移动到另一个瓷砖?平铺空间可以看作是具有固定度序列的固定图的子图的空间。代数统计学已经探索了连接这些空间的方法。因此,我们从应用代数的角度来处理这个问题,使多米诺骨牌,代数统计和环面代数之间的新的连接。利用图的环面理想的结果,我们能够描述移动连接的平铺空间的任何维度的给定的plumulated区域。这是通过研究从同一地区的两个不同的多米诺骨牌平铺产生的二项式来完成的。此外,我们引入平铺理想和翻转理想,并使用这些理想重申平铺空间翻转连接的意义。最后,我们证明了,如果$R$是一个$2$ -维单连通区域,任何二项式所产生的两个不同的平铺$R$可以写在二次二项式。作为我们的主要结果的推论,我们得到了一个替代的证明,事实上,一个$2$维单连通区域的多米诺平铺的集合是由翻转连接。

英文摘要:

In this paper, we consider the set of all domino tilings of a cubiculated region. The primary question we explore is: How can we move from one tiling to another? Tiling spaces can be viewed as spaces of subgraphs of a fixed graph with a fixed degree sequence. Moves to connect such spaces have been explored in algebraic statistics. Thus, we approach this question from an applied algebra viewpoint, making new connections between domino tilings, algebraic statistics, and toric algebra. Using results from toric ideals of graphs, we are able to describe moves that connect the tiling space of a given cubiculated region of any dimension. This is done by studying binomials that arise from two distinct domino tilings of the same region. Additionally, we introduce tiling ideals and flip ideals and use these ideals to restate what it means for a tiling space to be flip connected. Finally, we show that if $R$ is a $2$-dimensional simply connected cubiculated region, any binomial arising from two distinct tilings of $R$ can be written in terms of quadratic binomials. As a corollary to our main result, we obtain an alternative proof to the fact that the set of domino tilings of a $2$-dimensional simply connected region is connected by flips.

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。

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