Properties

Label 960.2.cg
Level $960$
Weight $2$
Character orbit 960.cg
Rep. character $\chi_{960}(43,\cdot)$
Character field $\Q(\zeta_{16})$
Dimension $768$
Newform subspaces $1$
Sturm bound $384$
Trace bound $0$

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Defining parameters

Level: \( N \) \(=\) \( 960 = 2^{6} \cdot 3 \cdot 5 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 960.cg (of order \(16\) and degree \(8\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 320 \)
Character field: \(\Q(\zeta_{16})\)
Newform subspaces: \( 1 \)
Sturm bound: \(384\)
Trace bound: \(0\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{2}(960, [\chi])\).

Total New Old
Modular forms 1568 768 800
Cusp forms 1504 768 736
Eisenstein series 64 0 64

Trace form

\( 768 q + O(q^{10}) \) \( 768 q - 32 q^{12} - 64 q^{14} + 32 q^{22} + 16 q^{24} + 144 q^{40} + 32 q^{51} - 192 q^{56} + 64 q^{58} - 96 q^{66} - 112 q^{68} + 64 q^{69} + 128 q^{71} - 16 q^{76} - 32 q^{79} - 80 q^{82} - 176 q^{88} + 144 q^{92} + 48 q^{98} + O(q^{100}) \)

Decomposition of \(S_{2}^{\mathrm{new}}(960, [\chi])\) into newform subspaces

Label Char Prim Dim $A$ Field CM Traces Sato-Tate $q$-expansion
$a_{2}$ $a_{3}$ $a_{5}$ $a_{7}$
960.2.cg.a 960.cg 320.ad $768$ $7.666$ None \(0\) \(0\) \(0\) \(0\) $\mathrm{SU}(2)[C_{16}]$

Decomposition of \(S_{2}^{\mathrm{old}}(960, [\chi])\) into lower level spaces

\( S_{2}^{\mathrm{old}}(960, [\chi]) \cong \) \(S_{2}^{\mathrm{new}}(320, [\chi])\)\(^{\oplus 2}\)