A knot diagram in which none of the crossings are reducible.
Reduced Knot Diagram
See also
Knot Diagram, Reducible CrossingExplore with Wolfram|Alpha
References
Hoste, J.; Thistlethwaite, M.; and Weeks, J. "The First
Knots." Math. Intell. 20, 33-48, Fall 1998.Referenced on Wolfram|Alpha
Reduced Knot DiagramCite this as:
Weisstein, Eric W. "Reduced Knot Diagram." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/ReducedKnotDiagram.html