modular form
analytic function on the upper half-plane with a certain behavior under the modular group
Dedekind eta function
modular form
Eisenstein series
series representing modular forms
modular discriminant
modular form of weight 12
j-invariant
modular function of weight zero defined on the upper half-plane of complex numbers
cusp form
modular form with a zero constant coefficient in the Fourier series expansion