Properties

Label 315.8.bb
Level $315$
Weight $8$
Character orbit 315.bb
Rep. character $\chi_{315}(89,\cdot)$
Character field $\Q(\zeta_{6})$
Dimension $224$
Sturm bound $384$

Related objects

Downloads

Learn more

Defining parameters

Level: \( N \) \(=\) \( 315 = 3^{2} \cdot 5 \cdot 7 \)
Weight: \( k \) \(=\) \( 8 \)
Character orbit: \([\chi]\) \(=\) 315.bb (of order \(6\) and degree \(2\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 105 \)
Character field: \(\Q(\zeta_{6})\)
Sturm bound: \(384\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{8}(315, [\chi])\).

Total New Old
Modular forms 688 224 464
Cusp forms 656 224 432
Eisenstein series 32 0 32

Trace form

\( 224 q - 7168 q^{4} + 1248 q^{10} - 458752 q^{16} + 114888 q^{19} + 101036 q^{25} + 76584 q^{31} - 3515556 q^{40} - 5721336 q^{46} + 713336 q^{49} + 8116392 q^{61} + 31185104 q^{64} + 25838940 q^{70} - 2492480 q^{79}+ \cdots + 37477992 q^{94}+O(q^{100}) \) Copy content Toggle raw display

Decomposition of \(S_{8}^{\mathrm{new}}(315, [\chi])\) into newform subspaces

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

Decomposition of \(S_{8}^{\mathrm{old}}(315, [\chi])\) into lower level spaces

\( S_{8}^{\mathrm{old}}(315, [\chi]) \simeq \) \(S_{8}^{\mathrm{new}}(105, [\chi])\)\(^{\oplus 2}\)