arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1302.4007math-phmath.DSmath.MP
收藏

分形上Laplacian的抽取方法:谱与复动力学

The Decimation Method for Laplacians on Fractals: Spectra and Complex Dynamics

Nishu Lal, Michel L. Lapidus

摘要:

在这篇综述文章中,我们研究了自相似分形上的分形微分算子的谱性质。特别是,我们讨论了抽取方法,它引入了一个重整化映射,其动力学描述了运营商的频谱。在有界Sierpinski垫片的情况下,重整化映射是复平面上的一元多项式。C. Sabot到其他具有爆破的分形,由此产生的相关重整化映射则是复射影空间上的多变量有理函数。此外,与重正化映射的迭代相关的动力学在获得分形微分算子的谱zeta函数的适当因子分解中起着关键作用。在此背景下,我们讨论了A. Tehraev和作者关于有界和无界的Sierpinski垫片以及分形Sturm-Liouville微分算子的半行的例子。

英文摘要:

In this survey article, we investigate the spectral properties of fractal differential operators on self-similar fractals. In particular, we discuss the decimation method, which introduces a renormalization map whose dynamics describes the spectrum of the operator. In the case of the bounded Sierpinski gasket, the renormalization map is a polynomial of one variable on the complex plane. The decimation method has been generalized by C. Sabot to other fractals with blow-ups and the resulting associated renormalization map is then a multi-variable rational function on a complex projective space. Furthermore, the dynamics associated with the iteration of the renormalization map plays a key role in obtaining a suitable factorization of the spectral zeta function of fractal differential operators. In this context, we discuss the works of A. Teplyaev and of the authors regarding the examples of the bounded and unbounded Sierpinski gaskets as well as of fractal Sturm-Liouville differential operators on the half-line.

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。

↑