Similar to 上半平面

Poincaré metric

Poincaré disk model

Poincaré half-plane model

Modular form

Weierstrass elliptic function

Cusp form

Classical modular curve

Real analytic Eisenstein series

Shimura correspondence

Modularity theorem

Doi–Naganuma lifting

Maass wave form

Modular group

Automorphic factor

Ramanujan–Petersson conjecture

Ramanujan tau function

Rankin–Cohen bracket

Ribet's theorem