Properties

Label 9840.2.js
Level $9840$
Weight $2$
Character orbit 9840.js
Rep. character $\chi_{9840}(469,\cdot)$
Character field $\Q(\zeta_{20})$
Dimension $8064$
Sturm bound $4032$

Related objects

Downloads

Learn more

Defining parameters

Level: \( N \) \(=\) \( 9840 = 2^{4} \cdot 3 \cdot 5 \cdot 41 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 9840.js (of order \(20\) and degree \(8\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 3280 \)
Character field: \(\Q(\zeta_{20})\)
Sturm bound: \(4032\)

Dimensions

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

Total New Old
Modular forms 16192 8064 8128
Cusp forms 16064 8064 8000
Eisenstein series 128 0 128

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

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