Properties

Label 1264.2.n
Level $1264$
Weight $2$
Character orbit 1264.n
Rep. character $\chi_{1264}(735,\cdot)$
Character field $\Q(\zeta_{6})$
Dimension $80$
Newform subspaces $9$
Sturm bound $320$
Trace bound $11$

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Defining parameters

Level: \( N \) \(=\) \( 1264 = 2^{4} \cdot 79 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 1264.n (of order \(6\) and degree \(2\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 316 \)
Character field: \(\Q(\zeta_{6})\)
Newform subspaces: \( 9 \)
Sturm bound: \(320\)
Trace bound: \(11\)
Distinguishing \(T_p\): \(3\), \(11\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{2}(1264, [\chi])\).

Total New Old
Modular forms 332 80 252
Cusp forms 308 80 228
Eisenstein series 24 0 24

Trace form

\( 80 q - 40 q^{9} + O(q^{10}) \) \( 80 q - 40 q^{9} - 4 q^{13} + 16 q^{21} - 52 q^{25} + 12 q^{37} - 60 q^{49} + 96 q^{65} - 16 q^{73} - 72 q^{77} + 8 q^{81} + 16 q^{97} + O(q^{100}) \)

Decomposition of \(S_{2}^{\mathrm{new}}(1264, [\chi])\) into newform subspaces

Label Char Prim Dim $A$ Field CM Minimal twist Traces Sato-Tate $q$-expansion
$a_{2}$ $a_{3}$ $a_{5}$ $a_{7}$
1264.2.n.a 1264.n 316.f $2$ $10.093$ \(\Q(\sqrt{-3}) \) None 1264.2.n.a \(0\) \(-2\) \(0\) \(-1\) $\mathrm{SU}(2)[C_{6}]$ \(q+(-2+2\zeta_{6})q^{3}-\zeta_{6}q^{7}-\zeta_{6}q^{9}+\cdots\)
1264.2.n.b 1264.n 316.f $2$ $10.093$ \(\Q(\sqrt{-3}) \) None 1264.2.n.b \(0\) \(-2\) \(0\) \(-1\) $\mathrm{SU}(2)[C_{6}]$ \(q+(-2+2\zeta_{6})q^{3}-\zeta_{6}q^{7}-\zeta_{6}q^{9}+\cdots\)
1264.2.n.c 1264.n 316.f $2$ $10.093$ \(\Q(\sqrt{-3}) \) None 1264.2.n.c \(0\) \(-1\) \(-3\) \(1\) $\mathrm{SU}(2)[C_{6}]$ \(q+(-1+\zeta_{6})q^{3}-3\zeta_{6}q^{5}+\zeta_{6}q^{7}+\cdots\)
1264.2.n.d 1264.n 316.f $2$ $10.093$ \(\Q(\sqrt{-3}) \) None 1264.2.n.c \(0\) \(1\) \(-3\) \(-1\) $\mathrm{SU}(2)[C_{6}]$ \(q+(1-\zeta_{6})q^{3}-3\zeta_{6}q^{5}-\zeta_{6}q^{7}+2\zeta_{6}q^{9}+\cdots\)
1264.2.n.e 1264.n 316.f $2$ $10.093$ \(\Q(\sqrt{-3}) \) None 1264.2.n.b \(0\) \(2\) \(0\) \(1\) $\mathrm{SU}(2)[C_{6}]$ \(q+(2-2\zeta_{6})q^{3}+\zeta_{6}q^{7}-\zeta_{6}q^{9}+(-4+\cdots)q^{13}+\cdots\)
1264.2.n.f 1264.n 316.f $2$ $10.093$ \(\Q(\sqrt{-3}) \) None 1264.2.n.a \(0\) \(2\) \(0\) \(1\) $\mathrm{SU}(2)[C_{6}]$ \(q+(2-2\zeta_{6})q^{3}+\zeta_{6}q^{7}-\zeta_{6}q^{9}+(4+\cdots)q^{11}+\cdots\)
1264.2.n.g 1264.n 316.f $20$ $10.093$ \(\mathbb{Q}[x]/(x^{20} - \cdots)\) None 1264.2.n.g \(0\) \(-4\) \(3\) \(-8\) $\mathrm{SU}(2)[C_{6}]$ \(q-\beta _{7}q^{3}+(-\beta _{11}-\beta _{14})q^{5}+(\beta _{8}-\beta _{19})q^{7}+\cdots\)
1264.2.n.h 1264.n 316.f $20$ $10.093$ \(\mathbb{Q}[x]/(x^{20} - \cdots)\) None 1264.2.n.g \(0\) \(4\) \(3\) \(8\) $\mathrm{SU}(2)[C_{6}]$ \(q+\beta _{7}q^{3}+(-\beta _{11}-\beta _{14})q^{5}+(-\beta _{8}+\cdots)q^{7}+\cdots\)
1264.2.n.i 1264.n 316.f $28$ $10.093$ None 1264.2.n.i \(0\) \(0\) \(0\) \(0\) $\mathrm{SU}(2)[C_{6}]$

Decomposition of \(S_{2}^{\mathrm{old}}(1264, [\chi])\) into lower level spaces

\( S_{2}^{\mathrm{old}}(1264, [\chi]) \simeq \) \(S_{2}^{\mathrm{new}}(316, [\chi])\)\(^{\oplus 3}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(632, [\chi])\)\(^{\oplus 2}\)