{ "id": "1905.04089", "version": "v1", "published": "2019-05-10T11:51:54.000Z", "updated": "2019-05-10T11:51:54.000Z", "title": "Parity in Knotoids", "authors": [ "Neslihan Gügümcü", "Louis Kauffman" ], "categories": [ "math.GT" ], "abstract": "This paper investigates the parity concept in knotoids in $S^2$ and in $\\mathbb{R}^2$ in relation with virtual knots. We show that the virtual closure map is not surjective and give specific examples of virtual knots that are not in the image. We introduce a planar version of the parity bracket polynomial for knotoids in $\\mathbb{R}^2$. By using the Nikonov/Manturov theorem on minimal diagrams of virtual knots we prove a conjecture of Turaev showing that minimal diagrams of knot-type knotoids have zero height.", "revisions": [ { "version": "v1", "updated": "2019-05-10T11:51:54.000Z" } ], "analyses": { "subjects": [ "57M27", "57M20" ], "keywords": [ "virtual knots", "minimal diagrams", "virtual closure map", "parity bracket polynomial", "parity concept" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }