{ "id": "2301.01671", "version": "v1", "published": "2023-01-04T15:51:08.000Z", "updated": "2023-01-04T15:51:08.000Z", "title": "Sums of triples in Abelian groups", "authors": [ "Ido Feldman", "Assaf Rinot" ], "categories": [ "math.LO", "math.CO" ], "abstract": "Motivated by a problem in additive Ramsey theory, we extend Todorcevic's partitions of three-dimensional combinatorial cubes to handle additional three-dimensional objects. As a corollary, we get that if the continuum hypothesis fails, then for every Abelian group $G$ of size $\\aleph_2$, there exists a coloring $c:G\\rightarrow\\mathbb Z$ such that for every uncountable $X\\subseteq G$ and every integer $k$, there are three distinct elements $x,y,z$ of $X$ such that $c(x+y+z)=k$.", "revisions": [ { "version": "v1", "updated": "2023-01-04T15:51:08.000Z" } ], "analyses": { "subjects": [ "03E02", "03E75", "03E35", "05A17" ], "keywords": [ "abelian group", "handle additional three-dimensional objects", "extend todorcevics partitions", "continuum hypothesis fails", "three-dimensional combinatorial cubes" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }