{ "id": "math/0411431", "version": "v1", "published": "2004-11-19T10:45:12.000Z", "updated": "2004-11-19T10:45:12.000Z", "title": "Splitting formulae for the Kontsevich-Kuperberg-Thurston invariant of rational homology 3-spheres", "authors": [ "Christine Lescop" ], "comment": "LaTex, 60 pages, 3 eps figures, uses pstricks. Second version of Prepub. Institut Fourier 656 (Minor modifications in the abstract and in the introduction.)", "categories": [ "math.GT" ], "abstract": "M. Kontsevich proposed a topological construction for an invariant Z of rational homology 3-spheres using configuration space integrals. G. Kuperberg and D. Thurston proved that Z is a universal real finite type invariant for integral homology spheres in the sense of Ohtsuki, Habiro and Goussarov. We discuss the behaviour of Z under rational homology handlebodies replacements. The explicit formulae that we present generalize a sum formula obtained by the author for the Casson-Walker invariant in 1994. They allow us to identify the degree one term of Z with the Walker invariant for rational homology spheres.", "revisions": [ { "version": "v1", "updated": "2004-11-19T10:45:12.000Z" } ], "analyses": { "subjects": [ "57M27", "55R80", "57N10", "57R20" ], "keywords": [ "kontsevich-kuperberg-thurston invariant", "splitting formulae", "universal real finite type invariant", "rational homology handlebodies replacements", "configuration space integrals" ], "note": { "typesetting": "LaTeX", "pages": 60, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2004math.....11431L" } } }