Properties

Label 7840.2.hz
Level $7840$
Weight $2$
Character orbit 7840.hz
Rep. character $\chi_{7840}(23,\cdot)$
Character field $\Q(\zeta_{84})$
Dimension $0$
Newform subspaces $0$
Sturm bound $2688$
Trace bound $0$

Related objects

Downloads

Learn more

Defining parameters

Level: \( N \) \(=\) \( 7840 = 2^{5} \cdot 5 \cdot 7^{2} \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 7840.hz (of order \(84\) and degree \(24\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 3920 \)
Character field: \(\Q(\zeta_{84})\)
Newform subspaces: \( 0 \)
Sturm bound: \(2688\)
Trace bound: \(0\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{2}(7840, [\chi])\).

Total New Old
Modular forms 32448 0 32448
Cusp forms 32064 0 32064
Eisenstein series 384 0 384

Decomposition of \(S_{2}^{\mathrm{old}}(7840, [\chi])\) into lower level spaces

\( S_{2}^{\mathrm{old}}(7840, [\chi]) \simeq \) \(S_{2}^{\mathrm{new}}(3920, [\chi])\)\(^{\oplus 2}\)