| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 4659761 | Topology and its Applications | 2012 | 15 Pages |
Abstract
In this paper, we give lower bounds of the braid indices of surface-links by represented 4-charts by quandle cocycle invariants. As a consequence, we show that the braid index of the connected sum of a spun trefoil and a 2-twist spun trefoil is five, which is a special case of Tanakaʼs Problem.
Related Topics
Physical Sciences and Engineering
Mathematics
Geometry and Topology
