ScalingStacks

Example 6.1.1. Elements of $L^{\pm}(r,n)$ and $R^{\pm}(r,n)$ can be represented by good strand diagrams in a rectangle, as in the examples below.

The actions are obtained by concatenation of diagrams (note that a diagram that is not good represents $0$), as in the example below, where we first apply the reflection of the rectangle swapping the top and the bottom, then rotate $90$ degrees anticlockwise the diagram of $h^{\prime}$: