论文标题

关于纯奇异频谱的替代自动形态

On substitution automorphisms with pure singular spectrum

论文作者

Bufetov, Alexander I., Solomyak, Boris

论文摘要

替代自动形态具有纯粹的奇异光谱的足够条件,是根据相关光谱共同体的顶部Lyapunov指数给出的。作为推论,对于无限的自相似间隔交换转换的家族,建立了频谱的奇异性。

A sufficient condition for a substitution automorphism to have pure singular spectrum is given in terms of the top Lyapunov exponent of the associated spectral cocycle. As a corollary, singularity of the spectrum is established for an infinite family of self-similar interval exchange transformations.

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