arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0908.1095math.OA
收藏

置换镶嵌的横截拉普拉斯算子

Transverse Laplacians for Substitution Tilings

Antoine Julien, Jean Savinien

摘要:

皮尔森和贝利萨德最近建立了一个谱三元组-黎曼非交换几何的数据-超度量康托集。他们在这些集合上导出了一个类似拉普拉斯-贝尔特拉米算子的家族。出于对具体例子的应用,我们重新审视了他们的工作的平铺空间,这是特殊的自相似康托集的横截。我们使用Bratteli图编码的自相似性,和Cuntz-Krieger代数来实现它。我们表明,收敛的zeta函数的谱三元组的横坐标给出指示的指数上的复杂性的平铺。我们完全确定了Laplace-Beltrami算子的谱,给出了其特征值的一个明确的计算方法,计算了它们的Weyl渐近性,以及它们的热核的一个Seeley等价。

英文摘要:

Pearson and Bellissard recently built a spectral triple - the data of Riemanian noncommutative geometry - for ultrametric Cantor sets. They derived a family of Laplace-Beltrami like operators on those sets. Motivated by the applications to specific examples, we revisit their work for the transversals of tiling spaces, which are particular self-similar Cantor sets. We use Bratteli diagrams to encode the self-similarity, and Cuntz-Krieger algebras to implement it. We show that the abscissa of convergence of the zeta-function of the spectral triple gives indications on the exponent of complexity of the tiling. We determine completely the spectrum of the Laplace-Beltrami operators, give an explicit method of calculation for their eigenvalues, compute their Weyl asymptotics, and a Seeley equivalent for their heat kernels.

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。

↑