Properties

Label 6240.2.w
Level $6240$
Weight $2$
Character orbit 6240.w
Rep. character $\chi_{6240}(3121,\cdot)$
Character field $\Q$
Dimension $96$
Newform subspaces $8$
Sturm bound $2688$
Trace bound $15$

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Defining parameters

Level: \( N \) \(=\) \( 6240 = 2^{5} \cdot 3 \cdot 5 \cdot 13 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 6240.w (of order \(2\) and degree \(1\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 8 \)
Character field: \(\Q\)
Newform subspaces: \( 8 \)
Sturm bound: \(2688\)
Trace bound: \(15\)
Distinguishing \(T_p\): \(7\), \(11\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{2}(6240, [\chi])\).

Total New Old
Modular forms 1376 96 1280
Cusp forms 1312 96 1216
Eisenstein series 64 0 64

Trace form

\( 96 q + 16 q^{7} - 96 q^{9} + O(q^{10}) \) \( 96 q + 16 q^{7} - 96 q^{9} - 8 q^{15} - 32 q^{23} - 96 q^{25} + 16 q^{31} + 96 q^{49} - 16 q^{63} + 32 q^{71} + 16 q^{79} + 96 q^{81} + O(q^{100}) \)

Decomposition of \(S_{2}^{\mathrm{new}}(6240, [\chi])\) into newform subspaces

Label Char Prim Dim $A$ Field CM Traces Sato-Tate $q$-expansion
$a_{2}$ $a_{3}$ $a_{5}$ $a_{7}$
6240.2.w.a 6240.w 8.b $2$ $49.827$ \(\Q(\sqrt{-1}) \) None \(0\) \(0\) \(0\) \(0\) $\mathrm{SU}(2)[C_{2}]$ \(q-iq^{3}-iq^{5}-q^{9}+2iq^{11}-iq^{13}+\cdots\)
6240.2.w.b 6240.w 8.b $2$ $49.827$ \(\Q(\sqrt{-1}) \) None \(0\) \(0\) \(0\) \(0\) $\mathrm{SU}(2)[C_{2}]$ \(q+iq^{3}-iq^{5}-q^{9}+6iq^{11}+iq^{13}+\cdots\)
6240.2.w.c 6240.w 8.b $4$ $49.827$ \(\Q(\zeta_{12})\) None \(0\) \(0\) \(0\) \(-12\) $\mathrm{SU}(2)[C_{2}]$ \(q-\zeta_{12}q^{3}-\zeta_{12}q^{5}+(-3+\zeta_{12}^{3})q^{7}+\cdots\)
6240.2.w.d 6240.w 8.b $4$ $49.827$ \(\Q(\zeta_{8})\) None \(0\) \(0\) \(0\) \(8\) $\mathrm{SU}(2)[C_{2}]$ \(q-\zeta_{8}q^{3}+\zeta_{8}q^{5}+(2+\zeta_{8}^{3})q^{7}-q^{9}+\cdots\)
6240.2.w.e 6240.w 8.b $16$ $49.827$ \(\mathbb{Q}[x]/(x^{16} + \cdots)\) None \(0\) \(0\) \(0\) \(-4\) $\mathrm{SU}(2)[C_{2}]$ \(q+\beta _{9}q^{3}-\beta _{9}q^{5}+\beta _{1}q^{7}-q^{9}+(-\beta _{9}+\cdots)q^{11}+\cdots\)
6240.2.w.f 6240.w 8.b $20$ $49.827$ \(\mathbb{Q}[x]/(x^{20} - \cdots)\) None \(0\) \(0\) \(0\) \(16\) $\mathrm{SU}(2)[C_{2}]$ \(q-\beta _{2}q^{3}-\beta _{2}q^{5}+(1+\beta _{10})q^{7}-q^{9}+\cdots\)
6240.2.w.g 6240.w 8.b $22$ $49.827$ None \(0\) \(0\) \(0\) \(4\) $\mathrm{SU}(2)[C_{2}]$
6240.2.w.h 6240.w 8.b $26$ $49.827$ None \(0\) \(0\) \(0\) \(4\) $\mathrm{SU}(2)[C_{2}]$

Decomposition of \(S_{2}^{\mathrm{old}}(6240, [\chi])\) into lower level spaces

\( S_{2}^{\mathrm{old}}(6240, [\chi]) \cong \) \(S_{2}^{\mathrm{new}}(40, [\chi])\)\(^{\oplus 12}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(80, [\chi])\)\(^{\oplus 8}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(104, [\chi])\)\(^{\oplus 12}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(160, [\chi])\)\(^{\oplus 4}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(208, [\chi])\)\(^{\oplus 8}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(416, [\chi])\)\(^{\oplus 4}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(520, [\chi])\)\(^{\oplus 6}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(1040, [\chi])\)\(^{\oplus 4}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(2080, [\chi])\)\(^{\oplus 2}\)