Feb 4, 2019
Abdelazz Nait Merzouk
Green is positive; red is negative. ℂ arguments can also be “in-between” (along 2 different paths, here shown as blue & yellow).
Felix Klein’s modular function ℑ: ℂP1 → ℂP1 equals
0 at the centers of the icosahedron's faces,
1 on the midpoints of its edges,
and ∞ at its vertices.
It satisfies all symmetries of the icosahedron:
A₅’s generators are: aaa = bb = [ab]⁵ = leave alone. Enjoy.
— isomorphismes (@isomorphisms) May 17, 2018
#Abdelaziz Nait Merzouk#John Baez#Felix Klein#Bernhard Riemann#Riemann sphere#icosahedron#Timaeus#A-D-E#ADE#group theory#insolubility of the quintic#quintic polynomial#mathematics#maths#math#ℂ#modular forms#modular functions#theta#theta function#equations#solving equations#geometry#algebraic geometry#symmetry
