{ "id": "1609.07872", "version": "v1", "published": "2016-09-26T07:20:10.000Z", "updated": "2016-09-26T07:20:10.000Z", "title": "Every linear order isomorphic to its cube is isomorphic to its square", "authors": [ "Garrett Ervin" ], "categories": [ "math.LO" ], "abstract": "In 1958, Sierpi\\'nski asked whether there exists a linear order $X$ that is isomorphic to its lexicographically ordered cube but is not isomorphic to its square. The main result of this paper is that the answer is negative. More generally, if $X$ is isomorphic to any one of its finite powers $X^n$, $n>1$, it is isomorphic to all of them.", "revisions": [ { "version": "v1", "updated": "2016-09-26T07:20:10.000Z" } ], "analyses": { "keywords": [ "linear order isomorphic", "main result", "finite powers", "sierpinski" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }