In this paper, we prove that if a surface diagram of a surface-knot has at most two triple points and the lower decker set is connected, then the surface-knot group is isomorphic to the infinite cyclic group.
|Journal||Journal of Knot Theory and its Ramifications|
|Publication status||Published - Jan 2012|
- surface diagram
- triple point
ASJC Scopus subject areas
- Algebra and Number Theory