Author: nLab edit announcer Format: MarkdownItexThis operation defines a semigroup structure on oriented knots, one can naturally extend this to a group structure and define an algebra structure as suggested in https://www.math.toronto.edu/drorbn/papers/OnVassiliev/OnVassiliev.pdf .
Vinithezip
<a href="https://ncatlab.org/nlab/revision/knot+sum/1">v1</a>, <a href="https://ncatlab.org/nlab/show/knot+sum">current</a>
This operation defines a semigroup structure on oriented knots, one can naturally extend this to a group structure and define an algebra structure as suggested in https://www.math.toronto.edu/drorbn/papers/OnVassiliev/OnVassiliev.pdf .