This slide shows the decomposition by extended conjugate roof.
We could use extended conjugate roofs, instead of normal conjugate roofs.
And extended conjugate roof XRoof* A gives …
XRoof* A is mainly used in …
Shown below are the same examples of the previous slide.
In the left example, “In” triangles form the only closed trajectory and part of two open trajectories.
In the middle example, “In” triangles form part of two open trajectory.
In the right example, “In” triangles form the only closed trajectory and part of three open trajectories.