Properties

Label 2720.2.cd
Level $2720$
Weight $2$
Character orbit 2720.cd
Rep. character $\chi_{2720}(441,\cdot)$
Character field $\Q(\zeta_{4})$
Dimension $0$
Newform subspaces $0$
Sturm bound $864$
Trace bound $0$

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Defining parameters

Level: \( N \) \(=\) \( 2720 = 2^{5} \cdot 5 \cdot 17 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 2720.cd (of order \(4\) and degree \(2\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 272 \)
Character field: \(\Q(i)\)
Newform subspaces: \( 0 \)
Sturm bound: \(864\)
Trace bound: \(0\)

Dimensions

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

Total New Old
Modular forms 880 0 880
Cusp forms 848 0 848
Eisenstein series 32 0 32

Decomposition of \(S_{2}^{\mathrm{old}}(2720, [\chi])\) into lower level spaces

\( S_{2}^{\mathrm{old}}(2720, [\chi]) \simeq \) \(S_{2}^{\mathrm{new}}(272, [\chi])\)\(^{\oplus 4}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(1360, [\chi])\)\(^{\oplus 2}\)