{ "id": "1603.03139", "version": "v1", "published": "2016-03-10T03:52:47.000Z", "updated": "2016-03-10T03:52:47.000Z", "title": "Approximate Correctors and Convergence Rates in Almost-Periodic Homogenization", "authors": [ "Zhongwei Shen", "Jinping Zhuge" ], "comment": "48 pages", "categories": [ "math.AP" ], "abstract": "This paper is concerned with quantitative homogenization of second-order elliptic systems with bounded measurable coefficients that are almost-periodic in the sense of H. Weyl. We obtain uniform local $L^2$ estimates for the approximate correctors in terms of a function that quantifies the almost-periodicity of the coefficient matrix. We give a condition that implies the existence of (true) correctors. These estimates as well as similar estimates for the dual approximate correctors yield optimal or near optimal convergence rates in $H^1$ and $L^2$. The $L^2$-based H\\\"older and Lipschitz estimates at large scale are also established.", "revisions": [ { "version": "v1", "updated": "2016-03-10T03:52:47.000Z" } ], "analyses": { "subjects": [ "35B27", "74Q20" ], "keywords": [ "almost-periodic homogenization", "dual approximate correctors yield optimal", "second-order elliptic systems", "optimal convergence rates", "coefficient matrix" ], "note": { "typesetting": "TeX", "pages": 48, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2016arXiv160303139S" } } }