{ "id": "0710.0038", "version": "v1", "published": "2007-09-29T03:13:46.000Z", "updated": "2007-09-29T03:13:46.000Z", "title": "Characterization of the matrix whose norm is determined by its action on decreasing sequences:The exceptional cases", "authors": [ "Chang-Pao Chen", "Chun-Yen Shen", "Kuo-Zhong Wang" ], "categories": [ "math.FA", "math.CA" ], "abstract": "Let $A=(a_{j,k})_{j,k \\ge 1}$ be a non-negative matrix. In this paper, we characterize those $A$ for which $\\|A\\|_{\\ell_p,\\ell_q}$ are determined by their actions on non-negative decreasing sequences, where one of $p$ and $q$ is 1 or $\\infty$. The conditions forcing on $A$ are sufficient and they are also necessary for non-negative finite matrices.", "revisions": [ { "version": "v1", "updated": "2007-09-29T03:13:46.000Z" } ], "analyses": { "subjects": [ "15A60", "47A30", "47B37" ], "keywords": [ "exceptional cases", "characterization", "non-negative finite matrices", "non-negative decreasing sequences" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2007arXiv0710.0038C" } } }