{ "id": "2307.08130", "version": "v1", "published": "2023-07-16T19:04:31.000Z", "updated": "2023-07-16T19:04:31.000Z", "title": "New constructions and invariants of closed exotic 4-manifolds", "authors": [ "Adam Simon Levine", "Tye Lidman", "Lisa Piccirillo" ], "comment": "50 pages, 19 figures", "categories": [ "math.GT" ], "abstract": "In this article, we give new means of constructing and distinguishing closed exotic four-manifolds. Using Heegaard Floer homology, we define new closed four-manifold invariants that are distinct from the Seiberg--Witten and Bauer--Furuta invariants and can remain distinct in covers. Our constructions include exotic definite manifolds with fundamental group $\\mathbb Z/2$, infinite families of exotic manifolds that are related by knot surgeries on Alexander polynomial 1 knots, and exotic manifolds that contain square-zero spheres.", "revisions": [ { "version": "v1", "updated": "2023-07-16T19:04:31.000Z" } ], "analyses": { "subjects": [ "57K18", "57K41", "57R58" ], "keywords": [ "closed exotic", "constructions", "exotic manifolds", "contain square-zero spheres", "heegaard floer homology" ], "note": { "typesetting": "TeX", "pages": 50, "language": "en", "license": "arXiv", "status": "editable" } } }