Year: 2026
Type: preprint
Abstract: Let $f$ be an Anosov diffeomorphism on the $d$-torus which is strongly partially hyperbolic with expanding center. If $d=3$ or if $f$ is isotopic to its linear part, where the isotopy is contained in the set of partially hyperbolic diffeomorphisms, we construct systems of strong-unstable and center-stable Margulis measures which are holonomy invariant. As a consequence, we obtain a characterization of measures of maximal unstable entropy in terms of their conditional measures along strong-unstable leaves. Moreover, we show that the unstable topological entropy, a measure of maximal unstable entropy and the Margulis system can be retrieved from the Pollicott-Ruelle spectrum of $f$.
Source: arXiv (Cornell University)
Author: Humbert, Tristan
Language: English
Subfield: Mathematical Physics
Field: Mathematics
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7222994427