{ "id": "2006.03085", "version": "v1", "published": "2020-06-04T18:13:14.000Z", "updated": "2020-06-04T18:13:14.000Z", "title": "Hierarchical hyperbolicity of graph products", "authors": [ "Daniel Berlyne", "Jacob Russell" ], "comment": "63 pages, 12 figures. Comments welcome", "categories": [ "math.GR" ], "abstract": "We show that any graph product of finitely generated groups is hierarchically hyperbolic relative to its vertex groups. We apply this result to answer two questions of Behrstock, Hagen, and Sisto: we show that the syllable metric on any graph product forms a hierarchically hyperbolic space, and that graph products of hierarchically hyperbolic groups are themselves hierarchically hyperbolic groups. This last result is a strengthening of a result of Berlai and Robbio by removing the need for extra hypotheses on the vertex groups. We also answer two questions of Genevois about the geometry of the electrification of a graph product of finite groups.", "revisions": [ { "version": "v1", "updated": "2020-06-04T18:13:14.000Z" } ], "analyses": { "subjects": [ "20F65", "20F67", "20F55" ], "keywords": [ "hierarchical hyperbolicity", "hierarchically hyperbolic groups", "vertex groups", "graph product forms", "hierarchically hyperbolic space" ], "note": { "typesetting": "TeX", "pages": 63, "language": "en", "license": "arXiv", "status": "editable" } } }