Properties

Label 2720.2.fb
Level $2720$
Weight $2$
Character orbit 2720.fb
Rep. character $\chi_{2720}(667,\cdot)$
Character field $\Q(\zeta_{8})$
Dimension $1712$
Sturm bound $864$

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Defining parameters

Level: \( N \) \(=\) \( 2720 = 2^{5} \cdot 5 \cdot 17 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 2720.fb (of order \(8\) and degree \(4\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 2720 \)
Character field: \(\Q(\zeta_{8})\)
Sturm bound: \(864\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{2}(2720, [\chi])\).

Total New Old
Modular forms 1744 1744 0
Cusp forms 1712 1712 0
Eisenstein series 32 32 0

Trace form

\( 1712 q - 4 q^{5} - 8 q^{6} - 8 q^{7} - 4 q^{10} - 8 q^{11} - 8 q^{12} - 8 q^{13} + 32 q^{14} - 16 q^{16} + 8 q^{18} - 4 q^{20} - 16 q^{21} - 8 q^{22} - 8 q^{23} - 8 q^{24} - 24 q^{27} - 8 q^{28} - 48 q^{30}+ \cdots + 24 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Decomposition of \(S_{2}^{\mathrm{new}}(2720, [\chi])\) into newform subspaces

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