An estimate of the unknotting numbers for virtual knots by forbidden moves

研究成果: Article査読

5 被引用数 (Scopus)

抄録

It is known that any virtual knot can be deformed into the trivial knot by a finite sequence of forbidden moves. In this paper, we give the difference of the values obtained from some invariants constructed by Henrich between two virtual knots which can be transformed into each other by a single forbidden move. As a result, we obtain a lower bound of the unknotting number of a virtual knot by forbidden moves.

本文言語English
論文番号13500090
ジャーナルJournal of Knot Theory and its Ramifications
22
3
DOI
出版ステータスPublished - 2013 3 1
外部発表はい

ASJC Scopus subject areas

  • 代数と数論

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