{ "id": "1609.06033", "version": "v1", "published": "2016-09-20T06:40:18.000Z", "updated": "2016-09-20T06:40:18.000Z", "title": "Mappings of preserving $n$-distance one in $n$-normed spaces", "authors": [ "Xujian Huang", "Dongni Tan" ], "comment": "11 pages", "categories": [ "math.FA" ], "abstract": "We give a positive answer to the Aleksandrov problem in $n$-normed spaces under the surjectivity assumption. Namely, we show that every surjective mapping preserving $n$-distance one is affine, and thus is an $n$-isometry. This is the first time to solve the Aleksandrov problem in $n$-normed spaces with only surjective assumption even in the usual case $n=2$. Finally, when the target space is $n$-strictly convex, we prove that every mapping preserving two $n$-distances with an integer ratio is an affine $n$-isometry.", "revisions": [ { "version": "v1", "updated": "2016-09-20T06:40:18.000Z" } ], "analyses": { "subjects": [ "46A03", "51K05" ], "keywords": [ "normed spaces", "aleksandrov problem", "integer ratio", "first time", "usual case" ], "note": { "typesetting": "TeX", "pages": 11, "language": "en", "license": "arXiv", "status": "editable" } } }