Properties

Label 2400.1.ca
Level $2400$
Weight $1$
Character orbit 2400.ca
Rep. character $\chi_{2400}(101,\cdot)$
Character field $\Q(\zeta_{8})$
Dimension $8$
Newform subspaces $1$
Sturm bound $480$
Trace bound $0$

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Defining parameters

Level: \( N \) \(=\) \( 2400 = 2^{5} \cdot 3 \cdot 5^{2} \)
Weight: \( k \) \(=\) \( 1 \)
Character orbit: \([\chi]\) \(=\) 2400.ca (of order \(8\) and degree \(4\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 96 \)
Character field: \(\Q(\zeta_{8})\)
Newform subspaces: \( 1 \)
Sturm bound: \(480\)
Trace bound: \(0\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{1}(2400, [\chi])\).

Total New Old
Modular forms 56 32 24
Cusp forms 8 8 0
Eisenstein series 48 24 24

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

\( 8 q + O(q^{10}) \) \( 8 q + 8 q^{24} + 8 q^{51} - 8 q^{54} - 8 q^{61} + 8 q^{69} + 8 q^{76} - 8 q^{94} + O(q^{100}) \)

Decomposition of \(S_{1}^{\mathrm{new}}(2400, [\chi])\) into newform subspaces

Label Char Prim Dim $A$ Field Image CM RM Minimal twist Traces Sato-Tate $q$-expansion
$a_{2}$ $a_{3}$ $a_{5}$ $a_{7}$
2400.1.ca.a 2400.ca 96.p $8$ $1.198$ \(\Q(\zeta_{16})\) $D_{8}$ \(\Q(\sqrt{-15}) \) None 480.1.bu.a \(0\) \(0\) \(0\) \(0\) \(q+\zeta_{16}^{5}q^{2}+\zeta_{16}q^{3}-\zeta_{16}^{2}q^{4}+\zeta_{16}^{6}q^{6}+\cdots\)