Properties

Label 930.2.d
Level $930$
Weight $2$
Character orbit 930.d
Rep. character $\chi_{930}(559,\cdot)$
Character field $\Q$
Dimension $28$
Newform subspaces $9$
Sturm bound $384$
Trace bound $11$

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Defining parameters

Level: \( N \) \(=\) \( 930 = 2 \cdot 3 \cdot 5 \cdot 31 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 930.d (of order \(2\) and degree \(1\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 5 \)
Character field: \(\Q\)
Newform subspaces: \( 9 \)
Sturm bound: \(384\)
Trace bound: \(11\)
Distinguishing \(T_p\): \(7\), \(11\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{2}(930, [\chi])\).

Total New Old
Modular forms 200 28 172
Cusp forms 184 28 156
Eisenstein series 16 0 16

Trace form

\( 28 q - 28 q^{4} + 8 q^{5} - 28 q^{9} - 8 q^{11} - 8 q^{14} - 8 q^{15} + 28 q^{16} + 16 q^{19} - 8 q^{20} + 24 q^{26} - 16 q^{29} - 16 q^{34} + 28 q^{36} + 24 q^{41} + 8 q^{44} - 8 q^{45} + 8 q^{46} - 20 q^{49}+ \cdots + 8 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Decomposition of \(S_{2}^{\mathrm{new}}(930, [\chi])\) into newform subspaces

Label Char Prim Dim $A$ Field CM Minimal twist Traces Sato-Tate $q$-expansion
$a_{2}$ $a_{3}$ $a_{5}$ $a_{7}$
930.2.d.a 930.d 5.b $2$ $7.426$ \(\Q(\sqrt{-1}) \) None 930.2.d.a \(0\) \(0\) \(-2\) \(0\) $\mathrm{SU}(2)[C_{2}]$ \(q+i q^{2}+i q^{3}-q^{4}+(2 i-1)q^{5}+\cdots\)
930.2.d.b 930.d 5.b $2$ $7.426$ \(\Q(\sqrt{-1}) \) None 930.2.d.b \(0\) \(0\) \(-2\) \(0\) $\mathrm{SU}(2)[C_{2}]$ \(q+i q^{2}-i q^{3}-q^{4}+(-2 i-1)q^{5}+\cdots\)
930.2.d.c 930.d 5.b $2$ $7.426$ \(\Q(\sqrt{-1}) \) None 930.2.d.c \(0\) \(0\) \(2\) \(0\) $\mathrm{SU}(2)[C_{2}]$ \(q-i q^{2}+i q^{3}-q^{4}+(2 i+1)q^{5}+\cdots\)
930.2.d.d 930.d 5.b $2$ $7.426$ \(\Q(\sqrt{-1}) \) None 930.2.d.d \(0\) \(0\) \(4\) \(0\) $\mathrm{SU}(2)[C_{2}]$ \(q-i q^{2}-i q^{3}-q^{4}+(i+2)q^{5}+\cdots\)
930.2.d.e 930.d 5.b $2$ $7.426$ \(\Q(\sqrt{-1}) \) None 930.2.d.e \(0\) \(0\) \(4\) \(0\) $\mathrm{SU}(2)[C_{2}]$ \(q+i q^{2}-i q^{3}-q^{4}+(i+2)q^{5}+\cdots\)
930.2.d.f 930.d 5.b $2$ $7.426$ \(\Q(\sqrt{-1}) \) None 930.2.d.f \(0\) \(0\) \(4\) \(0\) $\mathrm{SU}(2)[C_{2}]$ \(q-i q^{2}+i q^{3}-q^{4}+(-i+2)q^{5}+\cdots\)
930.2.d.g 930.d 5.b $4$ $7.426$ \(\Q(\zeta_{8})\) None 930.2.d.g \(0\) \(0\) \(8\) \(0\) $\mathrm{SU}(2)[C_{2}]$ \(q+\beta_1 q^{2}+\beta_1 q^{3}-q^{4}+(\beta_1+2)q^{5}+\cdots\)
930.2.d.h 930.d 5.b $6$ $7.426$ 6.0.3534400.1 None 930.2.d.h \(0\) \(0\) \(-6\) \(0\) $\mathrm{SU}(2)[C_{2}]$ \(q+\beta _{5}q^{2}+\beta _{5}q^{3}-q^{4}+(-1+\beta _{4}+\cdots)q^{5}+\cdots\)
930.2.d.i 930.d 5.b $6$ $7.426$ 6.0.11669056.1 None 930.2.d.i \(0\) \(0\) \(-4\) \(0\) $\mathrm{SU}(2)[C_{2}]$ \(q+\beta _{3}q^{2}-\beta _{3}q^{3}-q^{4}+(-1+\beta _{1}+\cdots)q^{5}+\cdots\)

Decomposition of \(S_{2}^{\mathrm{old}}(930, [\chi])\) into lower level spaces

\( S_{2}^{\mathrm{old}}(930, [\chi]) \simeq \) \(S_{2}^{\mathrm{new}}(30, [\chi])\)\(^{\oplus 2}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(155, [\chi])\)\(^{\oplus 4}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(310, [\chi])\)\(^{\oplus 2}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(465, [\chi])\)\(^{\oplus 2}\)