Defining parameters
Level: | \( N \) | \(=\) | \( 2020 = 2^{2} \cdot 5 \cdot 101 \) |
Weight: | \( k \) | \(=\) | \( 1 \) |
Character orbit: | \([\chi]\) | \(=\) | 2020.x (of order \(10\) and degree \(4\)) |
Character conductor: | \(\operatorname{cond}(\chi)\) | \(=\) | \( 2020 \) |
Character field: | \(\Q(\zeta_{10})\) | ||
Newform subspaces: | \( 2 \) | ||
Sturm bound: | \(306\) | ||
Trace bound: | \(2\) |
Dimensions
The following table gives the dimensions of various subspaces of \(M_{1}(2020, [\chi])\).
Total | New | Old | |
---|---|---|---|
Modular forms | 24 | 24 | 0 |
Cusp forms | 8 | 8 | 0 |
Eisenstein series | 16 | 16 | 0 |
The following table gives the dimensions of subspaces with specified projective image type.
\(D_n\) | \(A_4\) | \(S_4\) | \(A_5\) | |
---|---|---|---|---|
Dimension | 8 | 0 | 0 | 0 |
Trace form
Decomposition of \(S_{1}^{\mathrm{new}}(2020, [\chi])\) into newform subspaces
Label | Dim | $A$ | Field | Image | CM | RM | Traces | $q$-expansion | |||
---|---|---|---|---|---|---|---|---|---|---|---|
$a_{2}$ | $a_{3}$ | $a_{5}$ | $a_{7}$ | ||||||||
2020.1.x.a | $4$ | $1.008$ | \(\Q(\zeta_{10})\) | $D_{5}$ | \(\Q(\sqrt{-5}) \) | None | \(-1\) | \(3\) | \(-1\) | \(3\) | \(q+\zeta_{10}^{4}q^{2}+(1+\zeta_{10}^{2})q^{3}-\zeta_{10}^{3}q^{4}+\cdots\) |
2020.1.x.b | $4$ | $1.008$ | \(\Q(\zeta_{10})\) | $D_{5}$ | \(\Q(\sqrt{-5}) \) | None | \(1\) | \(-3\) | \(-1\) | \(-3\) | \(q-\zeta_{10}^{4}q^{2}+(-1-\zeta_{10}^{2})q^{3}-\zeta_{10}^{3}q^{4}+\cdots\) |