Space of modular forms of level 1200, weight 1, and Character 1200.bj

• Label: 1200.1.bj
• Level: $1200$
• Weight: $1$
• Character orbit: 1200.bj
• Rep. character: $\chi_{1200}(143,\cdot)$
• Character field: $\Q(\zeta_{4})$
• Dimension: $12$
• Newform subspaces: $2$
• Sturm bound: $240$
• Trace bound: $1$

Defining parameters

Level:	\( N \)	\(=\)	\( 1200 = 2^{4} \cdot 3 \cdot 5^{2} \)
Weight:	\( k \)	\(=\)	\( 1 \)
Character orbit:	\([\chi]\)	\(=\)	1200.bj (of order \(4\) and degree \(2\))
Character conductor:	\(\operatorname{cond}(\chi)\)	\(=\)	\( 60 \)
Character field:			\(\Q(i)\)
Newform subspaces:			\( 2 \)
Sturm bound:			\(240\)
Trace bound:			\(1\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{1}(1200, [\chi])\).

	Total	New	Old
Modular forms	96	12	84
Cusp forms	24	12	12
Eisenstein series	72	0	72

The following table gives the dimensions of subspaces with specified projective image type.

	\(D_n\)	\(A_4\)	\(S_4\)	\(A_5\)
Dimension	12	0	0	0

Trace form

\( 12 q + O(q^{10}) \)

Decomposition of \(S_{1}^{\mathrm{new}}(1200, [\chi])\) into newform subspaces

Label	Level	Weight	Char	Prim	Char order	Dim	Rel. Dim	$A$	Field	Image	CM	RM	Self-dual	Inner twists	Rank*	Traces				Coefficient ring index	Sato-Tate	$q$-expansion
																$a_{2}$	$a_{3}$	$a_{5}$	$a_{7}$
1200.1.bj.a	$1200$	$1$	1200.bj	60.l	$4$	$4$	$2$	$0.599$	\(\Q(\zeta_{8})\)	$D_{2}$	\(\Q(\sqrt{-3}) \), \(\Q(\sqrt{-5}) \)	\(\Q(\sqrt{15}) \)		$16$	$0$	\(0\)	\(0\)	\(0\)	\(0\)	$1$		\(q-\zeta_{8}q^{3}-\zeta_{8}^{3}q^{7}+\zeta_{8}^{2}q^{9}-2q^{21}+\cdots\)
1200.1.bj.b	$1200$	$1$	1200.bj	60.l	$4$	$8$	$4$	$0.599$	\(\Q(\zeta_{24})\)	$D_{6}$	\(\Q(\sqrt{-3}) \)	None		$16$	$0$	\(0\)	\(0\)	\(0\)	\(0\)	$2^{4}$		\(q-\zeta_{24}^{3}q^{3}+\zeta_{24}^{9}q^{7}+\zeta_{24}^{6}q^{9}+\cdots\)

Decomposition of \(S_{1}^{\mathrm{old}}(1200, [\chi])\) into lower level spaces

\( S_{1}^{\mathrm{old}}(1200, [\chi]) \cong \)