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arXiv 1404.6509math.CO
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具有两个楼层的三维区域的多米诺平铺的翻转不变性

Flip invariance for domino tilings of three-dimensional regions with two floors

Pedro H. Milet, Nicolau C. Saldanha

摘要:

我们研究了由2 × 1 × 1砖组成的两个简单相连的楼层的拼接区域。更确切地说,我们研究了翻转连接组件这样的平铺,并提供了一个代数不变式,“几乎”的特点翻转连接组件的这些地区,在某种意义上说,我们讨论的文件。我们还介绍了一个新的本地移动,三,其中,与翻转,连接多米诺骨牌瓷砖的空间时,两个楼层是相同的。

英文摘要:

We investigate tilings of cubiculated regions with two simply connected floors by 2 x 1 x 1 bricks. More precisely, we study the flip connected component for such tilings, and provide an algebraic invariant that "almost" characterizes the flip connected components of such regions, in a sense that we discuss in the paper. We also introduce a new local move, the trit, which, together with the flip, connects the space of domino tilings when the two floors are identical.

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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