{ "id": "1707.03160", "version": "v1", "published": "2017-07-11T08:04:44.000Z", "updated": "2017-07-11T08:04:44.000Z", "title": "Regularity of Homogenized Boundary Data in Periodic Homogenization of Elliptic Systems", "authors": [ "Zhongwei Shen", "Jinping Zhuge" ], "comment": "26 pages", "categories": [ "math.AP" ], "abstract": "This paper is concerned with periodic homogenization of second-order elliptic systems in divergence form with oscillating Dirichlet data or Neumann data of first order. We prove that the homogenized boundary data belong to $W^{1, p}$ for any $1