Properties

Label 2448.2.o
Level $2448$
Weight $2$
Character orbit 2448.o
Rep. character $\chi_{2448}(2447,\cdot)$
Character field $\Q$
Dimension $36$
Newform subspaces $4$
Sturm bound $864$
Trace bound $5$

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Defining parameters

Level: \( N \) \(=\) \( 2448 = 2^{4} \cdot 3^{2} \cdot 17 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 2448.o (of order \(2\) and degree \(1\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 204 \)
Character field: \(\Q\)
Newform subspaces: \( 4 \)
Sturm bound: \(864\)
Trace bound: \(5\)
Distinguishing \(T_p\): \(5\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{2}(2448, [\chi])\).

Total New Old
Modular forms 456 36 420
Cusp forms 408 36 372
Eisenstein series 48 0 48

Trace form

\( 36 q + O(q^{10}) \) \( 36 q + 36 q^{25} + 36 q^{49} + 60 q^{85} + O(q^{100}) \)

Decomposition of \(S_{2}^{\mathrm{new}}(2448, [\chi])\) into newform subspaces

Label Char Prim Dim $A$ Field CM Traces Sato-Tate $q$-expansion
$a_{2}$ $a_{3}$ $a_{5}$ $a_{7}$
2448.2.o.a 2448.o 204.h $4$ $19.547$ \(\Q(\sqrt{-2}, \sqrt{-7})\) None \(0\) \(0\) \(-12\) \(0\) $\mathrm{SU}(2)[C_{2}]$ \(q-3q^{5}+\beta _{1}q^{7}+\beta _{3}q^{11}+3q^{13}+\cdots\)
2448.2.o.b 2448.o 204.h $4$ $19.547$ \(\Q(\zeta_{8})\) \(\Q(\sqrt{-1}) \) \(0\) \(0\) \(0\) \(0\) $\mathrm{U}(1)[D_{2}]$ \(q+\zeta_{8}^{3}q^{5}-4q^{13}+(-\zeta_{8}^{2}-2\zeta_{8}^{3})q^{17}+\cdots\)
2448.2.o.c 2448.o 204.h $4$ $19.547$ \(\Q(\sqrt{-2}, \sqrt{-7})\) None \(0\) \(0\) \(12\) \(0\) $\mathrm{SU}(2)[C_{2}]$ \(q+3q^{5}+\beta _{1}q^{7}-\beta _{3}q^{11}+3q^{13}+\cdots\)
2448.2.o.d 2448.o 204.h $24$ $19.547$ None \(0\) \(0\) \(0\) \(0\) $\mathrm{SU}(2)[C_{2}]$

Decomposition of \(S_{2}^{\mathrm{old}}(2448, [\chi])\) into lower level spaces

\( S_{2}^{\mathrm{old}}(2448, [\chi]) \cong \) \(S_{2}^{\mathrm{new}}(204, [\chi])\)\(^{\oplus 6}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(612, [\chi])\)\(^{\oplus 3}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(1224, [\chi])\)\(^{\oplus 2}\)