{ "id": "1809.01895", "version": "v1", "published": "2018-09-06T09:17:42.000Z", "updated": "2018-09-06T09:17:42.000Z", "title": "Notes on A^1-contractibility and A^1-excision", "authors": [ "Yuri Shimizu" ], "categories": [ "math.AG", "math.AT", "math.KT" ], "abstract": "We prove that a smooth scheme of dimension $n$ over a perfect field is A^1-weakly equivalent to a point if it is A^1-n-connected. We also prove an excision result for A^1-homotopy sheaves over a perfect field.", "revisions": [ { "version": "v1", "updated": "2018-09-06T09:17:42.000Z" } ], "analyses": { "keywords": [ "perfect field", "smooth scheme", "excision result" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }