Properties

Base field \(\Q(\sqrt{-7}) \)
Level 218.3
Norm 218
New dimension 1

Related objects

Learn more about

Base field \(\Q(\sqrt{-7}) \)

Generator \(a\), with minimal polynomial \(x^{2} - x + 2\); class number \(1\).

Level 218.3

Norm: 218
Ideal: \((-7 a + 15) = \left(-a + 1\right) \cdot \left(-4 a - 7\right) \)
Label: 218.3

Modular form spaces

Weight 2
Dimension of cuspidal subspace: 1
Dimension of new cuspidal subspace: 1

Newforms

This space contains the following newform.

label weight dimension sign base change CM
218.3-a 2 1 +1 no no