Properties

Label 9840.2.ec
Level $9840$
Weight $2$
Character orbit 9840.ec
Rep. character $\chi_{9840}(4501,\cdot)$
Character field $\Q(\zeta_{4})$
Dimension $1344$
Sturm bound $4032$

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Defining parameters

Level: \( N \) \(=\) \( 9840 = 2^{4} \cdot 3 \cdot 5 \cdot 41 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 9840.ec (of order \(4\) and degree \(2\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 656 \)
Character field: \(\Q(i)\)
Sturm bound: \(4032\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{2}(9840, [\chi])\).

Total New Old
Modular forms 4048 1344 2704
Cusp forms 4016 1344 2672
Eisenstein series 32 0 32

Decomposition of \(S_{2}^{\mathrm{new}}(9840, [\chi])\) into newform subspaces

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

Decomposition of \(S_{2}^{\mathrm{old}}(9840, [\chi])\) into lower level spaces

\( S_{2}^{\mathrm{old}}(9840, [\chi]) \simeq \) \(S_{2}^{\mathrm{new}}(656, [\chi])\)\(^{\oplus 4}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(1968, [\chi])\)\(^{\oplus 2}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(3280, [\chi])\)\(^{\oplus 2}\)