X-Nico

unusual facts about modular group



Cusp form

In number theory, a branch of mathematics, a cusp form is a particular kind of modular form, distinguished in the case of modular forms for the modular group by the vanishing in the Fourier series expansion (see q-expansion)


see also

M-group

Iwasawa group or modular group, in the study of subgroup lattices, a group whose subgroup lattice is modular