3D Unsteady Diffusion and Reaction-Diffusion with Singularities by GFEM with 27-Node Hexahedrons

Table 4

Norm from the error made in by the GFEM/FDM in t = 0.1.

8 nodes	27 nodes	8 nodes	27 nodes	8 nodes	27 nodes
1/6
1/8
1/10
1/16