Abstract
We give lower bounds for the Gordian distance and the un- knotting number of handlebody-knots by using Alexander biquandle colorings. We construct handlebody-knots with Gordian distance n and unknotting num- ber n for any positive integer n.
Original language | English |
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Pages (from-to) | 1247-1267 |
Number of pages | 21 |
Journal | Journal of the Mathematical Society of Japan |
Volume | 70 |
Issue number | 4 |
DOIs | |
Publication status | Published - 2018 |
Externally published | Yes |
Keywords
- Biquandle
- Gordian distance
- Handlebody-knot
- Unknotting number
ASJC Scopus subject areas
- Mathematics(all)