Properties

Label 3328.1.r
Level $3328$
Weight $1$
Character orbit 3328.r
Rep. character $\chi_{3328}(2241,\cdot)$
Character field $\Q(\zeta_{4})$
Dimension $8$
Newform subspaces $2$
Sturm bound $448$
Trace bound $5$

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Defining parameters

Level: \( N \) \(=\) \( 3328 = 2^{8} \cdot 13 \)
Weight: \( k \) \(=\) \( 1 \)
Character orbit: \([\chi]\) \(=\) 3328.r (of order \(4\) and degree \(2\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 208 \)
Character field: \(\Q(i)\)
Newform subspaces: \( 2 \)
Sturm bound: \(448\)
Trace bound: \(5\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{1}(3328, [\chi])\).

Total New Old
Modular forms 56 8 48
Cusp forms 8 8 0
Eisenstein series 48 0 48

The following table gives the dimensions of subspaces with specified projective image type.

\(D_n\) \(A_4\) \(S_4\) \(A_5\)
Dimension 0 0 8 0

Trace form

\( 8 q + O(q^{10}) \) \( 8 q - 8 q^{41} - 8 q^{57} + 8 q^{81} + 8 q^{89} + O(q^{100}) \)

Decomposition of \(S_{1}^{\mathrm{new}}(3328, [\chi])\) into newform subspaces

Label Char Prim Dim $A$ Field Image CM RM Traces Sato-Tate $q$-expansion
$a_{2}$ $a_{3}$ $a_{5}$ $a_{7}$
3328.1.r.a 3328.r 208.r $4$ $1.661$ \(\Q(\zeta_{8})\) $S_{4}$ None None \(0\) \(0\) \(-4\) \(0\) \(q-\zeta_{8}^{3}q^{3}-q^{5}+\zeta_{8}^{3}q^{7}-\zeta_{8}^{2}q^{13}+\cdots\)
3328.1.r.b 3328.r 208.r $4$ $1.661$ \(\Q(\zeta_{8})\) $S_{4}$ None None \(0\) \(0\) \(4\) \(0\) \(q-\zeta_{8}^{3}q^{3}+q^{5}-\zeta_{8}^{3}q^{7}+\zeta_{8}^{2}q^{13}+\cdots\)