Abstract
In this paper, we discuss the crossing change operation along exchangeable double curves of a surface-knot diagram. We show that under certain condition, a finite sequence of Roseman moves preserves the property of those exchangeable double curves. As an application for this result, we also define a numerical invariant for a set of surface-knots called du-exchangeable set.
Original language | English |
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Pages (from-to) | 1247-1257 |
Number of pages | 11 |
Journal | Kyungpook Mathematical Journal |
Volume | 56 |
Issue number | 4 |
DOIs | |
Publication status | Published - 2016 |
Keywords
- Crossing changes
- Invariant
- Roseman moves
- Surface-knot
ASJC Scopus subject areas
- Mathematics(all)
- Applied Mathematics