Properties

Label 960.2.w
Level $960$
Weight $2$
Character orbit 960.w
Rep. character $\chi_{960}(127,\cdot)$
Character field $\Q(\zeta_{4})$
Dimension $48$
Newform subspaces $7$
Sturm bound $384$
Trace bound $7$

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Defining parameters

Level: \( N \) \(=\) \( 960 = 2^{6} \cdot 3 \cdot 5 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 960.w (of order \(4\) and degree \(2\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 20 \)
Character field: \(\Q(i)\)
Newform subspaces: \( 7 \)
Sturm bound: \(384\)
Trace bound: \(7\)
Distinguishing \(T_p\): \(7\)

Dimensions

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

Total New Old
Modular forms 432 48 384
Cusp forms 336 48 288
Eisenstein series 96 0 96

Trace form

\( 48 q + O(q^{10}) \) \( 48 q + 16 q^{17} + 16 q^{25} + 32 q^{61} - 16 q^{65} + 16 q^{73} + 96 q^{77} - 48 q^{81} + 96 q^{85} + 16 q^{97} + O(q^{100}) \)

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.w.a 960.w 20.e $4$ $7.666$ \(\Q(\zeta_{8})\) None \(0\) \(0\) \(0\) \(-4\) $\mathrm{SU}(2)[C_{4}]$ \(q-\zeta_{8}q^{3}+(-2\zeta_{8}+\zeta_{8}^{3})q^{5}+(-1+\cdots)q^{7}+\cdots\)
960.2.w.b 960.w 20.e $4$ $7.666$ \(\Q(\zeta_{8})\) None \(0\) \(0\) \(0\) \(4\) $\mathrm{SU}(2)[C_{4}]$ \(q-\zeta_{8}^{3}q^{3}+(-\zeta_{8}+2\zeta_{8}^{3})q^{5}+(1+\zeta_{8}^{2}+\cdots)q^{7}+\cdots\)
960.2.w.c 960.w 20.e $4$ $7.666$ \(\Q(\zeta_{8})\) None \(0\) \(0\) \(8\) \(0\) $\mathrm{SU}(2)[C_{4}]$ \(q-\zeta_{8}^{3}q^{3}+(2+\zeta_{8}^{2})q^{5}+4\zeta_{8}q^{7}+\cdots\)
960.2.w.d 960.w 20.e $8$ $7.666$ \(\Q(\zeta_{24})\) None \(0\) \(0\) \(-8\) \(0\) $\mathrm{SU}(2)[C_{4}]$ \(q+\zeta_{24}^{5}q^{3}+(-1-\zeta_{24}^{2}+\zeta_{24}^{3}+\cdots)q^{5}+\cdots\)
960.2.w.e 960.w 20.e $8$ $7.666$ 8.0.1698758656.6 None \(0\) \(0\) \(0\) \(-4\) $\mathrm{SU}(2)[C_{4}]$ \(q+\beta _{1}q^{3}-\beta _{2}q^{5}+(-1+\beta _{1}+\beta _{4}+\cdots)q^{7}+\cdots\)
960.2.w.f 960.w 20.e $8$ $7.666$ 8.0.1698758656.6 None \(0\) \(0\) \(0\) \(4\) $\mathrm{SU}(2)[C_{4}]$ \(q+\beta _{3}q^{3}+\beta _{4}q^{5}+(1+\beta _{2}+\beta _{3}+\beta _{5}+\cdots)q^{7}+\cdots\)
960.2.w.g 960.w 20.e $12$ $7.666$ 12.0.\(\cdots\).1 None \(0\) \(0\) \(0\) \(0\) $\mathrm{SU}(2)[C_{4}]$ \(q+\beta _{1}q^{3}-\beta _{10}q^{5}+(\beta _{2}+\beta _{9})q^{7}+\beta _{7}q^{9}+\cdots\)

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

\( S_{2}^{\mathrm{old}}(960, [\chi]) \cong \) \(S_{2}^{\mathrm{new}}(20, [\chi])\)\(^{\oplus 10}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(40, [\chi])\)\(^{\oplus 8}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(60, [\chi])\)\(^{\oplus 5}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(80, [\chi])\)\(^{\oplus 6}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(120, [\chi])\)\(^{\oplus 4}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(160, [\chi])\)\(^{\oplus 4}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(240, [\chi])\)\(^{\oplus 3}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(320, [\chi])\)\(^{\oplus 2}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(480, [\chi])\)\(^{\oplus 2}\)