{ "id": "1511.06689", "version": "v1", "published": "2015-11-19T19:44:09.000Z", "updated": "2015-11-19T19:44:09.000Z", "title": "A hypothetical algorithm which computes an upper bound for the heights of solutions of a Diophantine equation whose solution set is finite", "authors": [ "Apoloniusz Tyszka" ], "comment": "8 pages", "categories": [ "math.NT" ], "abstract": "Let f(n)=1 if n=1, 2^(2^(n-2)) if n \\in {2,3,4,5}, (2+2^(2^(n-4)))^(2^(n-4)) if n \\in {6,7,8,...}. We conjecture that if a system T \\subseteq {x_i+1=x_k, x_i \\cdot x_j=x_k: i,j,k \\in {1,...,n}} has only finitely many solutions in integers x_1,...,x_n, then each such solution (x_1,...,x_n) satisfies |x_1|,...,|x_n| \\leq f(n). We prove that the function f cannot be decreased and the conjecture implies that there is an algorithm which takes as input a Diophantine equation, returns an integer, and this integer is greater than the heights of integer (non-negative integer, positive integer, rational) solutions, if the solution set is finite. We show that the conjecture and Matiyasevich's conjecture on finite-fold Diophantine representations are jointly inconsistent.", "revisions": [ { "version": "v1", "updated": "2015-11-19T19:44:09.000Z" } ], "analyses": { "subjects": [ "11U05" ], "keywords": [ "diophantine equation", "solution set", "upper bound", "hypothetical algorithm", "finite-fold diophantine representations" ], "note": { "typesetting": "TeX", "pages": 8, "language": "en", "license": "arXiv", "status": "editable" } } }