{ "id": "2207.12153", "version": "v1", "published": "2022-07-25T12:55:15.000Z", "updated": "2022-07-25T12:55:15.000Z", "title": "Uniformity Aspects of $\\mathrm{SL}(2,\\mathbb{R})$ Cocycles and Applications to Schrödinger Operators Defined Over Boshernitzan Subshifts", "authors": [ "David Damanik", "Daniel Lenz" ], "comment": "24 pages", "categories": [ "math.DS", "math-ph", "math.MP", "math.SP" ], "abstract": "We consider continuous $\\mathrm{SL}(2,\\mathbb{R})$ valued cocycles over general dynamical systems and discuss a variety of uniformity notions. In particular, we provide a description of uniform one-parameter families of continuous $\\mathrm{SL}(2,\\mathbb{R})$ cocycles as $G_\\delta$-sets. These results are then applied to Schr\\\"odinger operators with dynamically defined potentials. In the case where the base dynamics is given by a subshift satisfying the Boshernitzan condition, we show that for a generic continuous sampling function, the associated Schr\\\"odinger cocycles are uniform for all energies and, in the aperiodic case, the spectrum is a Cantor set of zero Lebesgue measure.", "revisions": [ { "version": "v1", "updated": "2022-07-25T12:55:15.000Z" } ], "analyses": { "keywords": [ "uniformity aspects", "schrödinger operators", "boshernitzan subshifts", "applications", "zero lebesgue measure" ], "note": { "typesetting": "TeX", "pages": 24, "language": "en", "license": "arXiv", "status": "editable" } } }