In order to generate the mesh files used in the thesis, use the following for
values of 'a' in the .geo files:

2D:
1 0.04900     529 vertices    1060 elements
2 0.01500    5083 vertices   10168 elements
3 0.00490   50354 vertices  100710 elements
4 0.00150  534608 vertices 1069218 elements


3D:

1 0.08850     1915 vertices     10635 elements
2 0.01880   170297 vertices   1008870 elements
3 0.00885  1701554 vertices  10188506 elements