Added the nmod_poly implementation
Create pinch_impl.py
Create Rains_isom_normal.py
Create complexity.tex
Update complexity.tex

It had actually nothing to do with R_m which is a ring we use to compute the gaussian period.
Update complexity.tex
Update complexity.tex
Update complexity.tex
Update complexity.tex
Added first drafts of Rains' algorithm and its generalisations
wip