Properties

Base field \(\Q(\sqrt{-2}) \)
Level 256.1
Norm 256
New dimension 2

Related objects

Base field \(\Q(\sqrt{-2}) \)

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

Level 256.1

Norm: 256
Ideal: \((16) = \left(a\right)^{8} \)
Label: 256.1

Modular form spaces

Weight 2
Dimension of cuspidal subspace: 6
Dimension of new cuspidal subspace: 2

Newforms

There are 2 cuspidal newforms at this level in the database:

label weight dimension sign base change CM
256.1-a 2 1 -1 yes no
256.1-b 2 1 +1 yes no