Properties

Label 315.8.bf
Level $315$
Weight $8$
Character orbit 315.bf
Rep. character $\chi_{315}(109,\cdot)$
Character field $\Q(\zeta_{6})$
Dimension $276$
Sturm bound $384$

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Defining parameters

Level: \( N \) \(=\) \( 315 = 3^{2} \cdot 5 \cdot 7 \)
Weight: \( k \) \(=\) \( 8 \)
Character orbit: \([\chi]\) \(=\) 315.bf (of order \(6\) and degree \(2\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 35 \)
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 688 284 404
Cusp forms 656 276 380
Eisenstein series 32 8 24

Trace form

\( 276 q + 8702 q^{4} + 2772 q^{10} - 8328 q^{11} - 8258 q^{14} - 556326 q^{16} - 46420 q^{19} - 187232 q^{20} - 67418 q^{25} - 261014 q^{26} + 198172 q^{29} + 363804 q^{31} - 271392 q^{34} + 1140998 q^{35}+ \cdots + 8284558 q^{95}+O(q^{100}) \) 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

\( S_{8}^{\mathrm{old}}(315, [\chi]) \simeq \) \(S_{8}^{\mathrm{new}}(35, [\chi])\)\(^{\oplus 3}\)\(\oplus\)\(S_{8}^{\mathrm{new}}(105, [\chi])\)\(^{\oplus 2}\)