Properties

Label 680.2.bm
Level $680$
Weight $2$
Character orbit 680.bm
Rep. character $\chi_{680}(183,\cdot)$
Character field $\Q(\zeta_{4})$
Dimension $0$
Newform subspaces $0$
Sturm bound $216$
Trace bound $0$

Related objects

Downloads

Learn more

Defining parameters

Level: \( N \) \(=\) \( 680 = 2^{3} \cdot 5 \cdot 17 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 680.bm (of order \(4\) and degree \(2\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 340 \)
Character field: \(\Q(i)\)
Newform subspaces: \( 0 \)
Sturm bound: \(216\)
Trace bound: \(0\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{2}(680, [\chi])\).

Total New Old
Modular forms 232 0 232
Cusp forms 200 0 200
Eisenstein series 32 0 32

Decomposition of \(S_{2}^{\mathrm{old}}(680, [\chi])\) into lower level spaces

\( S_{2}^{\mathrm{old}}(680, [\chi]) \simeq \) \(S_{2}^{\mathrm{new}}(340, [\chi])\)\(^{\oplus 2}\)