Defining parameters
Level: | \( N \) | \(=\) | \( 126 = 2 \cdot 3^{2} \cdot 7 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 126.h (of order \(3\) and degree \(2\)) |
Character conductor: | \(\operatorname{cond}(\chi)\) | \(=\) | \( 63 \) |
Character field: | \(\Q(\zeta_{3})\) | ||
Newform subspaces: | \( 4 \) | ||
Sturm bound: | \(48\) | ||
Trace bound: | \(2\) | ||
Distinguishing \(T_p\): | \(5\) |
Dimensions
The following table gives the dimensions of various subspaces of \(M_{2}(126, [\chi])\).
Total | New | Old | |
---|---|---|---|
Modular forms | 56 | 16 | 40 |
Cusp forms | 40 | 16 | 24 |
Eisenstein series | 16 | 0 | 16 |
Trace form
Decomposition of \(S_{2}^{\mathrm{new}}(126, [\chi])\) into newform subspaces
Label | Dim | $A$ | Field | CM | Traces | $q$-expansion | |||
---|---|---|---|---|---|---|---|---|---|
$a_{2}$ | $a_{3}$ | $a_{5}$ | $a_{7}$ | ||||||
126.2.h.a | $2$ | $1.006$ | \(\Q(\sqrt{-3}) \) | None | \(-1\) | \(-3\) | \(-6\) | \(-1\) | \(q-\zeta_{6}q^{2}+(-1-\zeta_{6})q^{3}+(-1+\zeta_{6})q^{4}+\cdots\) |
126.2.h.b | $2$ | $1.006$ | \(\Q(\sqrt{-3}) \) | None | \(1\) | \(-3\) | \(6\) | \(5\) | \(q+\zeta_{6}q^{2}+(-1-\zeta_{6})q^{3}+(-1+\zeta_{6})q^{4}+\cdots\) |
126.2.h.c | $6$ | $1.006$ | 6.0.309123.1 | None | \(-3\) | \(4\) | \(10\) | \(-2\) | \(q+\beta _{4}q^{2}+(1-\beta _{5})q^{3}+(-1-\beta _{4})q^{4}+\cdots\) |
126.2.h.d | $6$ | $1.006$ | 6.0.309123.1 | None | \(3\) | \(2\) | \(-2\) | \(-4\) | \(q-\beta _{4}q^{2}+(\beta _{1}+\beta _{2}-\beta _{5})q^{3}+(-1+\cdots)q^{4}+\cdots\) |
Decomposition of \(S_{2}^{\mathrm{old}}(126, [\chi])\) into lower level spaces
\( S_{2}^{\mathrm{old}}(126, [\chi]) \cong \) \(S_{2}^{\mathrm{new}}(63, [\chi])\)\(^{\oplus 2}\)