A note on the four-dimensional clasp number of knots.
2020
Among the knots that are the connected sum of two torus knots with cobordism distance 1, we characterize those that have 4-dimensional clasp number at least 2, and we show that their n-fold connected self-sum has 4-dimensional clasp number at least 2n. Our proof works in the topological category. To contrast this, we build a family of topologically slice knots for which the n-fold connected self-sum has 4-ball genus n and 4-dimensional clasp number at least 2n.
- Correction
- Source
- Cite
- Save
- Machine Reading By IdeaReader
32
References
3
Citations
NaN
KQI