On substitution automorphisms with pure singular spectrum
Year: 2020
Type: preprint
Abstract: 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.
Source: arXiv (Cornell University)
Authors: Bufetov, Alexander I., Solomyak, Boris
Language: English
Subfield: Mathematical Physics
Field: Mathematics
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W4287824109
