{ "id": "1211.5947", "version": "v1", "published": "2012-11-26T13:35:00.000Z", "updated": "2012-11-26T13:35:00.000Z", "title": "Interpolation of Ces{à}ro sequence and function spaces", "authors": [ "Sergey V. Astashkin", "Lech Maligranda" ], "comment": "28 pages", "categories": [ "math.FA" ], "abstract": "The interpolation property of Ces{\\`a}ro sequence and function spaces is investigated. It is shown that $Ces_p(I)$ is an interpolation space between $Ces_{p_0}(I)$ and $Ces_{p_1}(I)$ for $1 < p_0 < p_1 \\leq \\infty$ and $1/p = (1 - \\theta)/p_0 + \\theta /p_1$ with $0 < \\theta < 1$, where $I = [0, \\infty)$ or $[0, 1]$. The same result is true for Ces{\\`a}ro sequence spaces. On the other hand, $Ces_p[0, 1]$ is not an interpolation space between $Ces_1[0, 1]$ and $Ces_{\\infty}[0, 1]$.", "revisions": [ { "version": "v1", "updated": "2012-11-26T13:35:00.000Z" } ], "analyses": { "subjects": [ "46E30", "46B20", "46B42" ], "keywords": [ "function spaces", "ro sequence", "interpolation space" ], "note": { "typesetting": "TeX", "pages": 28, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2012arXiv1211.5947A" } } }