Derivation of functional equations using FORM

Code related to my PhD work on the Yang Lee edge singularity for classic O(N) universality classes. I hand derived flow equations for a full second order derivative expansion. Then using a Taylor expansion about various field values, I use Mathematica to compute the flow equations for the Taylor coefficients, simplify equations, and solve them.

FRG is an image format(like PNG or JPG or ETC2 or ASTC etc.),for optimize load image time (loading from disk and decoding to display).

Online repository for the dissertation "From zero-dimensional theories to inhomogeneous phases with the functional renormalization group" of Martin Jakob Steil