The database contains information about Bianchi modular forms over several imaginary quadratic fields including all nine fields of class number $1$, for a range of levels.

## Browse Bianchi modular forms

Browse newform spaces by base field:

## Find a specific form or space by label

e.g. 2.0.4.1-65.2-a (single form) or 2.0.4.1-65.2 (space of forms at a level)

#### Examples of base change forms

• base-change of a newform with rational coefficients: 2.0.4.1-100.2-a (with an associated elliptic curve which is a base-change)
• base-change of a newform with coefficients in $$\mathbb{Q}(\sqrt{2})$$: 2.0.4.1-16384.1-d (with an associated elliptic curve which is not a base-change)
• base-change of a newform with coefficients in $$\mathbb{Q}(\sqrt{6})$$: 2.0.3.1-6561.1-b (with no associated elliptic curve)
• base-change of a newform with coefficients in $$\mathbb{Q}(\sqrt{5})$$, with CM by $$\mathbb{Q}(\sqrt{-35})$$: 2.0.7.1-10000.1-b (with no associated elliptic curve)

A random Bianchi modular form from the database