{ "id": "2311.06872", "version": "v1", "published": "2023-11-12T15:13:34.000Z", "updated": "2023-11-12T15:13:34.000Z", "title": "Ramsey theorem for trees with successor operation", "authors": [ "Martin Balko", "David Chodounský", "Natasha Dobrinen", "Jan Hubička", "Matěj Konečný", "Jaroslav Nešetřil", "Andy Zucker" ], "comment": "37 pages, 9 figures", "categories": [ "math.CO", "cs.DM", "math.LO" ], "abstract": "We prove a general Ramsey theorem for trees with a successor operation. This theorem is a common generalization of the Carlson-Simpson Theorem and the Milliken Tree Theorem for regularly branching trees. Our theorem has a number of applications both in finite and infinite combinatorics. For example, we give a short proof of the unrestricted Ne\\v{s}et\\v{r}il-R\\\"odl theorem, and we recover the Graham-Rothschild theorem. Our original motivation came from the study of big Ramsey degrees - various trees used in the study can be viewed as trees with a successor operation. To illustrate this, we give a non-forcing proof of a theorem of Zucker on big Ramsey degrees.", "revisions": [ { "version": "v1", "updated": "2023-11-12T15:13:34.000Z" } ], "analyses": { "subjects": [ "05D10", "05C05", "05C65", "05C55", "G.2.2", "F.4.1" ], "keywords": [ "successor operation", "big ramsey degrees", "general ramsey theorem", "milliken tree theorem", "original motivation came" ], "note": { "typesetting": "TeX", "pages": 37, "language": "en", "license": "arXiv", "status": "editable" } } }