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arXiv 0811.2507math.DSmath.GN
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置换平铺空间的上同调

Cohomology of Substitution Tiling Spaces

Marcy Barge, Beverly Diamond, John Hunton, Lorenzo Sadun

摘要:

Anderson和Putnam证明了一个替换瓦片空间的上同调可以通过对瓦片进行领化来计算,以获得一个“强迫其边界”的替换。然后,人们可以将平铺空间表示为由有领瓦片形成的细胞复形上的膨胀和替换映射的逆极限;平铺空间的上同调被计算为复形的上同调上的膨胀和替换引起的同态的直接极限。在早期的工作中,Barge和Diamond描述了一维替换瓦片空间的有领瓦片上的Anderson-Putnam复形的修改,它允许更容易的计算,并提供了一种识别瓦片空间的某些特殊特征与上同调的特定元素的方法。在本文中,我们将这种修改后的结构扩展到更高的维度。我们还研究了旋转群对上同调的作用,并计算了风车平铺空间的上同调。

英文摘要:

Anderson and Putnam showed that the cohomology of a substitution tiling space may be computed by collaring tiles to obtain a substitution which "forces its border." One can then represent the tiling space as an inverse limit of an inflation and substitution map on a cellular complex formed from the collared tiles; the cohomology of the tiling space is computed as the direct limit of the homomorphism induced by inflation and substitution on the cohomology of the complex. In earlier work, Barge and Diamond described a modification of the Anderson-Putnam complex on collared tiles for one-dimensional substitution tiling spaces that allows for easier computation and provides a means of identifying certain special features of the tiling space with particular elements of the cohomology. In this paper, we extend this modified construction to higher dimensions. We also examine the action of the rotation group on cohomology and compute the cohomology of the pinwheel tiling space.

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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