Quasi-Optimal Elimination Trees for 2D Grids with Singularities

Table 2

Refinement levels for particular elements from mesh with point singularity.

Refinement level	Area	Elements
1	1	1, 2, 4
2	1/4	5, 6, 8
3	1/16	9, 10, 11, 12
4	1/256	13, 14, 15, 16