2 papers
math.GT2016
Axis systems of link projections
Kirara Horiguchi, Ayaka Shimizu, Ryohei Watanabe +1
An axis of a link projection is a closed curve which lies symmetrically on each region of the link projection. In this paper we define axis systems of link projections and characte…
math.GT2015
The rank of a warping matrix
Taira Akiyama, Ayaka Shimizu, Ryohei Watanabe
The warping matrix has been defined for knot projections and knot diagrams by using warping degrees. In particular, the warping matrix of a knot diagram represents the knot diagram…