activity
20112020
most citedOn generating sets of Yoshikawa moves for marked graph diagrams of surface-links

3 citations · 6 across the 7 of their papers we have counts for

collaborators

10 papers

math.GT2020

On biquandles for the groups and surface singular braid monoid

Sang Youl Lee, Vassily Olegovich Manturov, Igor Mikhailovich Nikonov

The groups were defined by V. O. Manturov in order to describe dynamical systems in configuration systems. In the paper we consider two applications of this theory: we defi…

math.GT2018★ 2 cited

Biquandle cohomology and state-sum invariants of links and surface-links

Seiichi Kamada, Akio Kawauchi, Jieon Kim +1

In this paper, we discuss the (co)homology theory of biquandles, derived biquandle cocycle invariants for oriented surface-links using broken surface diagrams and how to compute th…

math.GT2017★ 1 cited

Presentation of immersed surface-links by marked graph diagrams

Seiichi Kamada, Akio Kawauchi, Jieon Kim +1

It is well known that surface-links in 4-space can be presented by diagrams on the plane of 4-valent spatial graphs with makers on the vertices, called marked graph diagrams. In th…

math.GT2016

Constructions of invariants for surface-links via link invariants and applications to the Kauffman bracket

Sang Youl Lee

In this paper, we formulate a construction of ideal coset invariants for surface-links in -space using invariants for knots and links in -space. We apply the construction to…

math.GT2016

Polynomial of an oriented surface-link diagram via quantum A_2 invariant

Yewon Joung, Seiichi Kamada, Akio Kawauchi +1

It is known that every surface-link can be presented by a marked graph diagram, and such a diagram presentation is unique up to moves called Yoshikawa moves. G. Kuperberg introduce…

math.GT2015

Computations of quandle cocyle invariants of surface-links using marked graph diagrams

Seiichi Kamada, Jieon Kim, Sang Youl Lee

By using the cohomology theory of quandles, quandle cocycle invariants and shadow quandle cocycle invariants are defined for oriented links and surface-links via broken surface dia…

math.GT2014★ 3 cited

On generating sets of Yoshikawa moves for marked graph diagrams of surface-links

Jieon Kim, Yewon Joung, Sang Youl Lee

A marked graph diagram is a link diagram possibly with marked -valent vertices. S. J. Lomonaco, Jr. and K. Yoshikawa introduced a method of representing surface-links by marked…

math.GT2014

Applying Lipson's state models to marked graph diagrams of surface-links

Yewon Joung, Seiichi Kamada, Sang Youl Lee

A. S. Lipson constructed two state models yielding the same classical link invariant obtained from the Kauffman polynomial . In this paper, we apply Lipson's state models t…

math.GT2014

Crossing number of an alternating knot and canonical genus of its Whitehead double

Hee Jeong Jang, Sang Youl Lee

A conjecture proposed by J. Tripp in 2002 states that the crossing number of any knot coincides with the canonical genus of its Whitehead double. In the meantime, it has been estab…

math.GT2011

The canonical genus for Whitehead doubles of a family of alternating knots

Hee Jeong Jang, Sang Youl Lee

For any given integer and a quasitoric braid with , we prove that the maximum degree in of the HOMFLYPT…