{ "id": "2205.11670", "version": "v1", "published": "2022-05-23T23:38:48.000Z", "updated": "2022-05-23T23:38:48.000Z", "title": "Knot concordance invariants from Seiberg-Witten theory and slice genus bounds in 4-manifolds", "authors": [ "David Baraglia" ], "comment": "24 pages", "categories": [ "math.GT", "math.DG" ], "abstract": "We construct a new family of knot concordance invariants $\\theta^{(q)}(K)$, where $q$ is a prime number. Our invariants are obtained from the equivariant Seiberg-Witten-Floer cohomology, constructed by the author and Hekmati, applied to the degree $q$ cyclic cover of $S^3$ branched over $K$. In the case $q=2$, our invariant $\\theta^{(2)}(K)$ shares many similarities with the knot Floer homology invariant $\\nu^+(K)$ defined by Hom and Wu. Our invariants $\\theta^{(q)}(K)$ give lower bounds on the genus of any smooth, properly embedded, homologically trivial surface bounding $K$ in a definite $4$-manifold with boundary $S^3$.", "revisions": [ { "version": "v1", "updated": "2022-05-23T23:38:48.000Z" } ], "analyses": { "subjects": [ "57K10", "57K41" ], "keywords": [ "knot concordance invariants", "slice genus bounds", "seiberg-witten theory", "knot floer homology invariant", "equivariant seiberg-witten-floer cohomology" ], "note": { "typesetting": "TeX", "pages": 24, "language": "en", "license": "arXiv", "status": "editable" } } }