Properties

Label 462.2.y
Level $462$
Weight $2$
Character orbit 462.y
Rep. character $\chi_{462}(25,\cdot)$
Character field $\Q(\zeta_{15})$
Dimension $128$
Newform subspaces $4$
Sturm bound $192$
Trace bound $2$

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Defining parameters

Level: \( N \) \(=\) \( 462 = 2 \cdot 3 \cdot 7 \cdot 11 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 462.y (of order \(15\) and degree \(8\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 77 \)
Character field: \(\Q(\zeta_{15})\)
Newform subspaces: \( 4 \)
Sturm bound: \(192\)
Trace bound: \(2\)
Distinguishing \(T_p\): \(5\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{2}(462, [\chi])\).

Total New Old
Modular forms 832 128 704
Cusp forms 704 128 576
Eisenstein series 128 0 128

Trace form

\( 128 q + 16 q^{4} + 8 q^{5} + 8 q^{6} + 8 q^{7} + 16 q^{9} + 36 q^{10} + 8 q^{11} + 16 q^{13} + 4 q^{14} + 12 q^{15} + 16 q^{16} + 12 q^{17} - 16 q^{20} - 4 q^{22} + 8 q^{23} - 4 q^{24} + 40 q^{25} + 8 q^{26}+ \cdots - 16 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Decomposition of \(S_{2}^{\mathrm{new}}(462, [\chi])\) into newform subspaces

Label Char Prim Dim $A$ Field CM Minimal twist Traces Sato-Tate $q$-expansion
$a_{2}$ $a_{3}$ $a_{5}$ $a_{7}$
462.2.y.a 462.y 77.m $24$ $3.689$ None 462.2.y.a \(-3\) \(-3\) \(5\) \(11\) $\mathrm{SU}(2)[C_{15}]$
462.2.y.b 462.y 77.m $24$ $3.689$ None 462.2.y.b \(3\) \(3\) \(5\) \(-5\) $\mathrm{SU}(2)[C_{15}]$
462.2.y.c 462.y 77.m $40$ $3.689$ None 462.2.y.c \(-5\) \(5\) \(1\) \(9\) $\mathrm{SU}(2)[C_{15}]$
462.2.y.d 462.y 77.m $40$ $3.689$ None 462.2.y.d \(5\) \(-5\) \(-3\) \(-7\) $\mathrm{SU}(2)[C_{15}]$

Decomposition of \(S_{2}^{\mathrm{old}}(462, [\chi])\) into lower level spaces

\( S_{2}^{\mathrm{old}}(462, [\chi]) \simeq \) \(S_{2}^{\mathrm{new}}(77, [\chi])\)\(^{\oplus 4}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(154, [\chi])\)\(^{\oplus 2}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(231, [\chi])\)\(^{\oplus 2}\)