{ "id": "1201.4708", "version": "v1", "published": "2012-01-23T13:21:55.000Z", "updated": "2012-01-23T13:21:55.000Z", "title": "Sobolev spaces and Lagrange interpolation", "authors": [ "Bogdan Bojarski" ], "comment": "12 pages", "categories": [ "math.AP" ], "abstract": "In this short paper the discussion of the pointwise characterization of functions $f$ in the Sobolev space $W^{m,p}(\\R^n)$ given in the recent paper (Bojarski) is supplemented in \\SS1 by a direct, essentially geometric, proof of the novel inequality (for $m>1$), appearing in Bojarski apparently for the first time, and involving the use of the $m$-th difference of the function $f$. Moreover in \\SS2 some additional comments to the text in Bojarski are given and a natural class of Sobolev spaces in domains $G$ in $\\R^n$ is defined. \\SS3 contains some final remarks.", "revisions": [ { "version": "v1", "updated": "2012-01-23T13:21:55.000Z" } ], "analyses": { "subjects": [ "46E35" ], "keywords": [ "sobolev space", "lagrange interpolation", "final remarks", "short paper", "first time" ], "note": { "typesetting": "TeX", "pages": 12, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2012arXiv1201.4708B" } } }