Let g2,g3C be two complex numbers, and by the previous proposition let L=ω1Z+ω2Z be the associated lattice, (z) the associated function. We define the cubic curve, given g2,g3 as 1;;γ={(y,w)C×C|w2=4y3g2yg3}. We further remark that ((z),(z)) parametrizes this curve in a 1-1 correspondence, if we mod out by the Lattice. So we have a bijective map:

C/Lγ
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