"soptk.py"
----------
implements the second order perturbation theory
for the 2D Hubbard model.

To run it with default paramaters, type
> soptk.py

To learn how to change parameters, type
> soptk.py -h


"IPT.py"
----------
implements the iterative perturbation theory for the Hubbard model
in the DMFT approximation (see lecture notes for explanation).

To run it with default paramaters, type
> IPT.py

To learn how to change parameters, type
> IPT.py -h