Properties

Label 675.2.h
Level $675$
Weight $2$
Character orbit 675.h
Rep. character $\chi_{675}(136,\cdot)$
Character field $\Q(\zeta_{5})$
Dimension $160$
Newform subspaces $4$
Sturm bound $180$
Trace bound $4$

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Defining parameters

Level: \( N \) \(=\) \( 675 = 3^{3} \cdot 5^{2} \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 675.h (of order \(5\) and degree \(4\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 25 \)
Character field: \(\Q(\zeta_{5})\)
Newform subspaces: \( 4 \)
Sturm bound: \(180\)
Trace bound: \(4\)
Distinguishing \(T_p\): \(2\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{2}(675, [\chi])\).

Total New Old
Modular forms 384 160 224
Cusp forms 336 160 176
Eisenstein series 48 0 48

Trace form

\( 160 q - 40 q^{4} + 4 q^{7} + O(q^{10}) \) \( 160 q - 40 q^{4} + 4 q^{7} - 2 q^{10} - 12 q^{13} - 52 q^{16} - 6 q^{19} - 6 q^{25} - 2 q^{28} - 6 q^{31} + 40 q^{34} + 80 q^{37} - 28 q^{40} - 12 q^{43} + 8 q^{46} + 140 q^{49} - 54 q^{52} - 8 q^{55} - 68 q^{58} - 60 q^{61} - 40 q^{64} + 20 q^{67} + 28 q^{70} - 72 q^{73} - 80 q^{76} - 44 q^{79} - 188 q^{82} + 172 q^{85} - 118 q^{88} - 2 q^{91} + 122 q^{94} - 38 q^{97} + O(q^{100}) \)

Decomposition of \(S_{2}^{\mathrm{new}}(675, [\chi])\) into newform subspaces

Label Char Prim Dim $A$ Field CM Traces Sato-Tate $q$-expansion
$a_{2}$ $a_{3}$ $a_{5}$ $a_{7}$
675.2.h.a 675.h 25.d $40$ $5.390$ None \(-2\) \(0\) \(-3\) \(-2\) $\mathrm{SU}(2)[C_{5}]$
675.2.h.b 675.h 25.d $40$ $5.390$ None \(0\) \(0\) \(0\) \(20\) $\mathrm{SU}(2)[C_{5}]$
675.2.h.c 675.h 25.d $40$ $5.390$ None \(0\) \(0\) \(0\) \(-12\) $\mathrm{SU}(2)[C_{5}]$
675.2.h.d 675.h 25.d $40$ $5.390$ None \(2\) \(0\) \(3\) \(-2\) $\mathrm{SU}(2)[C_{5}]$

Decomposition of \(S_{2}^{\mathrm{old}}(675, [\chi])\) into lower level spaces

\( S_{2}^{\mathrm{old}}(675, [\chi]) \cong \) \(S_{2}^{\mathrm{new}}(25, [\chi])\)\(^{\oplus 4}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(75, [\chi])\)\(^{\oplus 3}\)