Regularized Laplacian determinants of self-similar fractals.

Regularized Laplacian determinants of self-similar fractals.
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DOI:
10.1007/s11005-017-1027-y
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发表时间:
2018
影响因子:
1.2
通讯作者:
Tsougkas K
Tsougkas K
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Chen JP;Teplyaev A;Tsougkas K

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我们研究了分形集上拉普拉斯的光谱 zeta 函数,分形集是 Strichartz 意义上的局部自相似的分形折叠。已知这些函数亚纯延伸到整个复平面,并且它们的极点位置(有时称为复维度)特别令人感兴趣。我们给出了局部自相似集的例子,使得它们的复数维度不在虚轴上,这使我们能够将它们的拉普拉斯行列式解释为它们特征值的正则化乘积。然后,我们研究离散图拉普拉斯行列式的对数与正则化行列式之间的联系。
We study the spectral zeta functions of the Laplacian on fractal sets which are locally self-similar fractafolds, in the sense of Strichartz. These functions are known to meromorphically extend to the entire complex plane, and the locations of their poles, sometimes referred to as complex dimensions, are of special interest. We give examples of locally self-similar sets such that their complex dimensions are not on the imaginary axis, which allows us to interpret their Laplacian determinant as the regularized product of their eigenvalues. We then investigate a connection between the logarithm of the determinant of the discrete graph Laplacian and the regularized one.
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