{ "id": "math/9201264", "version": "v1", "published": "1992-01-01T00:00:00.000Z", "updated": "1992-01-01T00:00:00.000Z", "title": "Semistability of amalgamated products, HNN-extensions, and all one-relator groups", "authors": [ "Michael L. Mihalik", "Steven T. Tschantz" ], "comment": "6 pages. Abstract added in migration.", "journal": "Bull. Amer. Math. Soc. (N.S.) 26 (1992) 131-136", "categories": [ "math.GR", "math.GT" ], "abstract": "The authors announce the following theorem. Theorem 1. If $G=A*_H B$ is an amalgamated product where $A$ and $B$ are finitely presented and semistable at infinity, and $H$ is finitely generated, then $G$ is semistable at infinity. If $G=A*_H$ is an HNN-extension where $A$ is finitely presented and semistable at infinity, and $H$ is finitely generated, then $G$ is semistable at infinity.", "revisions": [ { "version": "v1", "updated": "1992-01-01T00:00:00.000Z" } ], "analyses": { "keywords": [ "amalgamated product", "one-relator groups", "hnn-extension", "semistability" ], "tags": [ "journal article", "expository article" ], "publication": { "publisher": "AMS", "journal": "Bull. Amer. Math. Soc." }, "note": { "typesetting": "TeX", "pages": 6, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "1992math......1264M" } } }