Properties

Label 14.12.c
Level $14$
Weight $12$
Character orbit 14.c
Rep. character $\chi_{14}(9,\cdot)$
Character field $\Q(\zeta_{3})$
Dimension $16$
Newform subspaces $2$
Sturm bound $24$
Trace bound $2$

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Defining parameters

Level: \( N \) \(=\) \( 14 = 2 \cdot 7 \)
Weight: \( k \) \(=\) \( 12 \)
Character orbit: \([\chi]\) \(=\) 14.c (of order \(3\) and degree \(2\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 7 \)
Character field: \(\Q(\zeta_{3})\)
Newform subspaces: \( 2 \)
Sturm bound: \(24\)
Trace bound: \(2\)
Distinguishing \(T_p\): \(3\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{12}(14, [\chi])\).

Total New Old
Modular forms 48 16 32
Cusp forms 40 16 24
Eisenstein series 8 0 8

Trace form

\( 16 q - 8192 q^{4} + 11312 q^{5} - 34048 q^{6} + 68104 q^{7} - 627368 q^{9} + 118272 q^{10} + 1133176 q^{11} - 1612240 q^{13} + 2654336 q^{14} + 1775056 q^{15} - 8388608 q^{16} + 10187968 q^{17} + 12170496 q^{18}+ \cdots - 152071856816 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Decomposition of \(S_{12}^{\mathrm{new}}(14, [\chi])\) into newform subspaces

Label Char Prim Dim $A$ Field CM Minimal twist Traces Sato-Tate $q$-expansion
$a_{2}$ $a_{3}$ $a_{5}$ $a_{7}$
14.12.c.a 14.c 7.c $8$ $10.757$ \(\mathbb{Q}[x]/(x^{8} - \cdots)\) None 14.12.c.a \(-128\) \(266\) \(7504\) \(-42224\) $\mathrm{SU}(2)[C_{3}]$ \(q+(-2^{5}+2^{5}\beta _{2})q^{2}+(67\beta _{2}-\beta _{3})q^{3}+\cdots\)
14.12.c.b 14.c 7.c $8$ $10.757$ \(\mathbb{Q}[x]/(x^{8} - \cdots)\) None 14.12.c.b \(128\) \(-266\) \(3808\) \(110328\) $\mathrm{SU}(2)[C_{3}]$ \(q+2^{5}\beta _{2}q^{2}+(-67+\beta _{1}+67\beta _{2})q^{3}+\cdots\)

Decomposition of \(S_{12}^{\mathrm{old}}(14, [\chi])\) into lower level spaces

\( S_{12}^{\mathrm{old}}(14, [\chi]) \simeq \) \(S_{12}^{\mathrm{new}}(7, [\chi])\)\(^{\oplus 2}\)