Properties

Label 2016.2.p
Level $2016$
Weight $2$
Character orbit 2016.p
Rep. character $\chi_{2016}(559,\cdot)$
Character field $\Q$
Dimension $38$
Newform subspaces $7$
Sturm bound $768$
Trace bound $43$

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Defining parameters

Level: \( N \) \(=\) \( 2016 = 2^{5} \cdot 3^{2} \cdot 7 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 2016.p (of order \(2\) and degree \(1\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 56 \)
Character field: \(\Q\)
Newform subspaces: \( 7 \)
Sturm bound: \(768\)
Trace bound: \(43\)
Distinguishing \(T_p\): \(5\), \(11\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{2}(2016, [\chi])\).

Total New Old
Modular forms 416 42 374
Cusp forms 352 38 314
Eisenstein series 64 4 60

Trace form

\( 38 q + O(q^{10}) \) \( 38 q - 8 q^{11} + 26 q^{25} - 10 q^{49} + 24 q^{65} - 16 q^{67} + 24 q^{91} + O(q^{100}) \)

Decomposition of \(S_{2}^{\mathrm{new}}(2016, [\chi])\) into newform subspaces

Label Char Prim Dim $A$ Field CM Traces Sato-Tate $q$-expansion
$a_{2}$ $a_{3}$ $a_{5}$ $a_{7}$
2016.2.p.a 2016.p 56.e $2$ $16.098$ \(\Q(\sqrt{-7}) \) \(\Q(\sqrt{-7}) \) \(0\) \(0\) \(0\) \(0\) $\mathrm{U}(1)[D_{2}]$ \(q-\beta q^{7}-4q^{11}-2\beta q^{23}-5q^{25}+\cdots\)
2016.2.p.b 2016.p 56.e $4$ $16.098$ \(\Q(\zeta_{12})\) None \(0\) \(0\) \(0\) \(0\) $\mathrm{SU}(2)[C_{2}]$ \(q-2\zeta_{12}q^{5}+(\zeta_{12}-\zeta_{12}^{3})q^{7}-2q^{11}+\cdots\)
2016.2.p.c 2016.p 56.e $4$ $16.098$ \(\Q(\sqrt{-2}, \sqrt{7})\) \(\Q(\sqrt{-42}) \) \(0\) \(0\) \(0\) \(0\) $\mathrm{U}(1)[D_{2}]$ \(q+\beta _{3}q^{7}-2\beta _{3}q^{13}+\beta _{2}q^{17}+\beta _{1}q^{23}+\cdots\)
2016.2.p.d 2016.p 56.e $4$ $16.098$ \(\Q(i, \sqrt{7})\) \(\Q(\sqrt{-7}) \) \(0\) \(0\) \(0\) \(0\) $\mathrm{U}(1)[D_{2}]$ \(q-\beta _{3}q^{7}-\beta _{2}q^{11}+4\beta _{1}q^{23}-5q^{25}+\cdots\)
2016.2.p.e 2016.p 56.e $4$ $16.098$ \(\Q(i, \sqrt{6})\) None \(0\) \(0\) \(0\) \(0\) $\mathrm{SU}(2)[C_{2}]$ \(q+\beta _{3}q^{5}+(\beta _{1}-\beta _{3})q^{7}+2q^{11}+\beta _{3}q^{13}+\cdots\)
2016.2.p.f 2016.p 56.e $4$ $16.098$ \(\Q(\zeta_{12})\) None \(0\) \(0\) \(0\) \(0\) $\mathrm{SU}(2)[C_{2}]$ \(q+2\zeta_{12}q^{5}+(\zeta_{12}-\zeta_{12}^{3})q^{7}+2q^{11}+\cdots\)
2016.2.p.g 2016.p 56.e $16$ $16.098$ \(\mathbb{Q}[x]/(x^{16} + \cdots)\) None \(0\) \(0\) \(0\) \(0\) $\mathrm{SU}(2)[C_{2}]$ \(q-\beta _{3}q^{5}+\beta _{6}q^{7}-\beta _{4}q^{11}+(\beta _{6}-\beta _{8}+\cdots)q^{13}+\cdots\)

Decomposition of \(S_{2}^{\mathrm{old}}(2016, [\chi])\) into lower level spaces

\( S_{2}^{\mathrm{old}}(2016, [\chi]) \cong \) \(S_{2}^{\mathrm{new}}(56, [\chi])\)\(^{\oplus 9}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(112, [\chi])\)\(^{\oplus 6}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(168, [\chi])\)\(^{\oplus 6}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(224, [\chi])\)\(^{\oplus 3}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(336, [\chi])\)\(^{\oplus 4}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(504, [\chi])\)\(^{\oplus 3}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(672, [\chi])\)\(^{\oplus 2}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(1008, [\chi])\)\(^{\oplus 2}\)