Properties

Label 2128.2.gj
Level $2128$
Weight $2$
Character orbit 2128.gj
Rep. character $\chi_{2128}(199,\cdot)$
Character field $\Q(\zeta_{18})$
Dimension $0$
Newform subspaces $0$
Sturm bound $640$
Trace bound $0$

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Defining parameters

Level: \( N \) \(=\) \( 2128 = 2^{4} \cdot 7 \cdot 19 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 2128.gj (of order \(18\) and degree \(6\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 1064 \)
Character field: \(\Q(\zeta_{18})\)
Newform subspaces: \( 0 \)
Sturm bound: \(640\)
Trace bound: \(0\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{2}(2128, [\chi])\).

Total New Old
Modular forms 1968 0 1968
Cusp forms 1872 0 1872
Eisenstein series 96 0 96

Decomposition of \(S_{2}^{\mathrm{old}}(2128, [\chi])\) into lower level spaces

\( S_{2}^{\mathrm{old}}(2128, [\chi]) \simeq \) \(S_{2}^{\mathrm{new}}(1064, [\chi])\)\(^{\oplus 2}\)