Properties

Label 2040.2.cg
Level $2040$
Weight $2$
Character orbit 2040.cg
Rep. character $\chi_{2040}(659,\cdot)$
Character field $\Q(\zeta_{4})$
Dimension $848$
Sturm bound $864$

Related objects

Downloads

Learn more

Defining parameters

Level: \( N \) \(=\) \( 2040 = 2^{3} \cdot 3 \cdot 5 \cdot 17 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 2040.cg (of order \(4\) and degree \(2\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 2040 \)
Character field: \(\Q(i)\)
Sturm bound: \(864\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{2}(2040, [\chi])\).

Total New Old
Modular forms 880 880 0
Cusp forms 848 848 0
Eisenstein series 32 32 0

Trace form

\( 848 q - 16 q^{4} + 4 q^{6} + O(q^{10}) \) \( 848 q - 16 q^{4} + 4 q^{6} - 12 q^{10} - 8 q^{16} + 8 q^{24} - 32 q^{30} - 20 q^{34} - 8 q^{40} + 8 q^{46} - 8 q^{51} - 48 q^{54} + 8 q^{64} - 16 q^{75} - 16 q^{81} + 24 q^{84} + 40 q^{90} - 128 q^{91} + 84 q^{96} - 80 q^{99} + O(q^{100}) \)

Decomposition of \(S_{2}^{\mathrm{new}}(2040, [\chi])\) into newform subspaces

The newforms in this space have not yet been added to the LMFDB.