Space of modular forms of level 1260, weight 1, and Character 1260.p

• Label: 1260.1.p
• Level: $1260$
• Weight: $1$
• Character orbit: 1260.p
• Rep. character: $\chi_{1260}(1189,\cdot)$
• Character field: $\Q$
• Dimension: $2$
• Newform subspaces: $2$
• Sturm bound: $288$
• Trace bound: $5$

Defining parameters

Level:	\( N \)	\(=\)	\( 1260 = 2^{2} \cdot 3^{2} \cdot 5 \cdot 7 \)
Weight:	\( k \)	\(=\)	\( 1 \)
Character orbit:	\([\chi]\)	\(=\)	1260.p (of order \(2\) and degree \(1\))
Character conductor:	\(\operatorname{cond}(\chi)\)	\(=\)	\( 35 \)
Character field:			\(\Q\)
Newform subspaces:			\( 2 \)
Sturm bound:			\(288\)
Trace bound:			\(5\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{1}(1260, [\chi])\).

	Total	New	Old
Modular forms	32	2	30
Cusp forms	8	2	6
Eisenstein series	24	0	24

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

	\(D_n\)	\(A_4\)	\(S_4\)	\(A_5\)
Dimension	2	0	0	0

Trace form

\( 2 q + O(q^{10}) \)

Decomposition of \(S_{1}^{\mathrm{new}}(1260, [\chi])\) 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
																$a_{2}$	$a_{3}$	$a_{5}$	$a_{7}$
1260.1.p.a	$1260$	$1$	1260.p	35.c	$2$	$1$	$1$	$0.629$	\(\Q\)	$D_{3}$	\(\Q(\sqrt{-35}) \)	None	✓	$2$	$0$	\(0\)	\(0\)	\(-1\)	\(1\)	$1$		\(q-q^{5}+q^{7}+q^{11}-q^{13}+q^{17}+q^{25}+\cdots\)
1260.1.p.b	$1260$	$1$	1260.p	35.c	$2$	$1$	$1$	$0.629$	\(\Q\)	$D_{3}$	\(\Q(\sqrt{-35}) \)	None	✓	$2$	$0$	\(0\)	\(0\)	\(1\)	\(-1\)	$1$		\(q+q^{5}-q^{7}+q^{11}+q^{13}-q^{17}+q^{25}+\cdots\)

Decomposition of \(S_{1}^{\mathrm{old}}(1260, [\chi])\) into lower level spaces

\( S_{1}^{\mathrm{old}}(1260, [\chi]) \cong \) \(S_{1}^{\mathrm{new}}(140, [\chi])\)\(^{\oplus 3}\)