{ "id": "math/9906001", "version": "v4", "published": "1999-06-01T02:30:38.000Z", "updated": "2000-06-22T01:14:13.000Z", "title": "A discrete form of the Beckman-Quarles theorem for rational eight-space", "authors": [ "Apoloniusz Tyszka" ], "comment": "added Remark 4 by Joseph Zaks, to appear in Aequationes Math", "journal": "Aequationes Mathematicae 62 (2001), pp. 85-93", "categories": [ "math.MG" ], "abstract": "Let Q denote the field of rational numbers. Let F \\subseteq R is a euclidean field. We prove that: (1) if x,y \\in F^n (n>1) and |x-y| is constructible by means of ruler and compass then there exists a finite set S(x,y) \\subseteq F^n containing x and y such that each map from S(x,y) to R^n preserving unit distance preserves the distance between x and y, (2) if x,y \\in Q^8 then there exists a finite set S(x,y) \\subseteq Q^8 containing x and y such that each map from S(x,y) to R^8 preserving unit distance preserves the distance between x and y.", "revisions": [ { "version": "v4", "updated": "2000-06-22T01:14:13.000Z" } ], "analyses": { "subjects": [ "51M05", "05C12" ], "keywords": [ "beckman-quarles theorem", "rational eight-space", "discrete form", "preserving unit distance preserves", "finite set" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "1999math......6001T" } } }