{ "id": "1708.07879", "version": "v1", "published": "2017-08-25T20:55:18.000Z", "updated": "2017-08-25T20:55:18.000Z", "title": "$\\mathrm{Pin}(2)$-Monopole Floer homology and the Rokhlin invariant", "authors": [ "Francesco Lin" ], "comment": "17 pages, 2 figures, comments are welcome!", "categories": [ "math.GT" ], "abstract": "We show that the bar version of the $\\mathrm{Pin}(2)$-monopole Floer homology of a three-manifold $Y$ equipped with a self-conjugate spin$^c$ structure $\\mathfrak{s}$ is determined by the triple cup product of $Y$ together with the Rokhlin invariants of the spin structures inducing $\\mathfrak{s}$. This is a manifestation of mod $2$ index theory, and can be interpreted as a three-dimensional counterpart of Atiyah's classic results regarding spin structures on Riemann surfaces.", "revisions": [ { "version": "v1", "updated": "2017-08-25T20:55:18.000Z" } ], "analyses": { "keywords": [ "monopole floer homology", "rokhlin invariant", "atiyahs classic results regarding spin", "classic results regarding spin structures", "triple cup product" ], "note": { "typesetting": "TeX", "pages": 17, "language": "en", "license": "arXiv", "status": "editable" } } }