Properties

Label 1680.2.fm
Level $1680$
Weight $2$
Character orbit 1680.fm
Rep. character $\chi_{1680}(11,\cdot)$
Character field $\Q(\zeta_{12})$
Dimension $1024$
Sturm bound $768$

Related objects

Downloads

Learn more

Defining parameters

Level: \( N \) \(=\) \( 1680 = 2^{4} \cdot 3 \cdot 5 \cdot 7 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 1680.fm (of order \(12\) and degree \(4\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 336 \)
Character field: \(\Q(\zeta_{12})\)
Sturm bound: \(768\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{2}(1680, [\chi])\).

Total New Old
Modular forms 1568 1024 544
Cusp forms 1504 1024 480
Eisenstein series 64 0 64

Trace form

\( 1024 q + 32 q^{16} - 20 q^{18} + 48 q^{22} + 40 q^{24} + 24 q^{28} - 20 q^{42} + 160 q^{48} - 40 q^{51} - 24 q^{52} - 60 q^{54} + 32 q^{58} + 28 q^{60} + 48 q^{64} + 40 q^{66} + 64 q^{67} + 56 q^{72} - 116 q^{84}+ \cdots - 4 q^{96}+O(q^{100}) \) Copy content Toggle raw display

Decomposition of \(S_{2}^{\mathrm{new}}(1680, [\chi])\) into newform subspaces

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

Decomposition of \(S_{2}^{\mathrm{old}}(1680, [\chi])\) into lower level spaces

\( S_{2}^{\mathrm{old}}(1680, [\chi]) \simeq \) \(S_{2}^{\mathrm{new}}(336, [\chi])\)\(^{\oplus 2}\)