Quasi-Optimal Elimination Trees for 2D Grids with Singularities

Figure 16

Generation of numbering of elements over the mesh refined towards edge singularity, refined in seven steps denoted on panels (a), (b), (c), (d), (e), (f), and (g).

(a)

(b)

(c)

(d)

(e)

(f)

(g)