Want to take part in these discussions? Sign in if you have an account, or apply for one below
Vanilla 1.1.10 is a product of Lussumo. More Information: Documentation, Community Support.
some basics at congruence subgroup
added a paragraph Relation to spin strutcures on elliptic curves on how over the complex numbers the congruence subgroup $\Gamma_0(2)$ is the one that fixes the “NS-R” spin strutcure on the elliptic curve.
1 to 2 of 2