Space of modular forms of level 1600, weight 2, and Character 1600.d

• Label: 1600.2.d
• Level: $1600$
• Weight: $2$
• Character orbit: 1600.d
• Rep. character: $\chi_{1600}(801,\cdot)$
• Character field: $\Q$
• Dimension: $38$
• Newform subspaces: $9$
• Sturm bound: $480$
• Trace bound: $17$

Defining parameters

Level:	\( N \)	\(=\)	\( 1600 = 2^{6} \cdot 5^{2} \)
Weight:	\( k \)	\(=\)	\( 2 \)
Character orbit:	\([\chi]\)	\(=\)	1600.d (of order \(2\) and degree \(1\))
Character conductor:	\(\operatorname{cond}(\chi)\)	\(=\)	\( 8 \)
Character field:			\(\Q\)
Newform subspaces:			\( 9 \)
Sturm bound:			\(480\)
Trace bound:			\(17\)
Distinguishing \(T_p\):			\(3\), \(7\), \(17\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{2}(1600, [\chi])\).

	Total	New	Old
Modular forms	276	38	238
Cusp forms	204	38	166
Eisenstein series	72	0	72

Trace form

\( 38 q - 38 q^{9} + O(q^{10}) \)

Decomposition of \(S_{2}^{\mathrm{new}}(1600, [\chi])\) into newform subspaces

Label	Level	Weight	Char	Prim	Char order	Dim	Rel. Dim	$A$	Field	CM	Self-dual	Inner twists	Rank*	Traces				Coefficient ring index	Sato-Tate	$q$-expansion
														$a_{2}$	$a_{3}$	$a_{5}$	$a_{7}$
1600.2.d.a	$1600$	$2$	1600.d	8.b	$2$	$2$	$2$	$12.776$	\(\Q(\sqrt{-1}) \)	\(\Q(\sqrt{-2}) \)		$4$	$0$	\(0\)	\(0\)	\(0\)	\(0\)	$2$	$\mathrm{U}(1)[D_{2}]$	\(q+iq^{3}-q^{9}+3iq^{11}+6q^{17}-iq^{19}+\cdots\)
1600.2.d.b	$1600$	$2$	1600.d	8.b	$2$	$4$	$4$	$12.776$	\(\Q(\zeta_{12})\)	None		$2$	$0$	\(0\)	\(0\)	\(0\)	\(-12\)	$2^{3}$	$\mathrm{SU}(2)[C_{2}]$	\(q-\zeta_{12}^{3}q^{3}+(-3+\zeta_{12})q^{7}+(-1+\cdots)q^{9}+\cdots\)
1600.2.d.c	$1600$	$2$	1600.d	8.b	$2$	$4$	$4$	$12.776$	\(\Q(i, \sqrt{6})\)	\(\Q(\sqrt{-2}) \)		$4$	$0$	\(0\)	\(0\)	\(0\)	\(0\)	$2^{3}$	$\mathrm{U}(1)[D_{2}]$	\(q+\beta _{2}q^{3}+(-4-\beta _{3})q^{9}+(\beta _{1}+\beta _{2}+\cdots)q^{11}+\cdots\)
1600.2.d.d	$1600$	$2$	1600.d	8.b	$2$	$4$	$4$	$12.776$	\(\Q(i, \sqrt{6})\)	\(\Q(\sqrt{-2}) \)		$4$	$0$	\(0\)	\(0\)	\(0\)	\(0\)	$2^{3}$	$\mathrm{U}(1)[D_{2}]$	\(q+\beta _{2}q^{3}+(-4-\beta _{3})q^{9}+(-\beta _{1}-\beta _{2}+\cdots)q^{11}+\cdots\)
1600.2.d.e	$1600$	$2$	1600.d	8.b	$2$	$4$	$4$	$12.776$	\(\Q(\zeta_{12})\)	None		$4$	$0$	\(0\)	\(0\)	\(0\)	\(0\)	$2^{4}$	$\mathrm{SU}(2)[C_{2}]$	\(q+\zeta_{12}q^{3}-\zeta_{12}^{3}q^{7}+2q^{9}+3\zeta_{12}q^{11}+\cdots\)
1600.2.d.f	$1600$	$2$	1600.d	8.b	$2$	$4$	$4$	$12.776$	\(\Q(\zeta_{12})\)	None		$4$	$0$	\(0\)	\(0\)	\(0\)	\(0\)	$2^{4}$	$\mathrm{SU}(2)[C_{2}]$	\(q+\zeta_{12}q^{3}+\zeta_{12}^{3}q^{7}+2q^{9}-3\zeta_{12}q^{11}+\cdots\)
1600.2.d.g	$1600$	$2$	1600.d	8.b	$2$	$4$	$4$	$12.776$	\(\Q(i, \sqrt{5})\)	\(\Q(\sqrt{-10}) \)		$8$	$0$	\(0\)	\(0\)	\(0\)	\(0\)	$2^{5}$	$\mathrm{U}(1)[D_{2}]$	\(q-\beta _{3}q^{7}+3q^{9}-\beta _{1}q^{11}+\beta _{2}q^{13}+\cdots\)
1600.2.d.h	$1600$	$2$	1600.d	8.b	$2$	$4$	$4$	$12.776$	\(\Q(\zeta_{12})\)	None		$2$	$0$	\(0\)	\(0\)	\(0\)	\(12\)	$2^{3}$	$\mathrm{SU}(2)[C_{2}]$	\(q-\zeta_{12}^{3}q^{3}+(3-\zeta_{12})q^{7}+(-1+2\zeta_{12}+\cdots)q^{9}+\cdots\)
1600.2.d.i	$1600$	$2$	1600.d	8.b	$2$	$8$	$8$	$12.776$	\(\Q(\zeta_{24})\)	None		$8$	$0$	\(0\)	\(0\)	\(0\)	\(0\)	$2^{12}$	$\mathrm{SU}(2)[C_{2}]$	\(q-\zeta_{24}^{5}q^{3}-\zeta_{24}^{4}q^{7}-3q^{9}-\zeta_{24}q^{11}+\cdots\)

Decomposition of \(S_{2}^{\mathrm{old}}(1600, [\chi])\) into lower level spaces

\( S_{2}^{\mathrm{old}}(1600, [\chi]) \cong \) \(S_{2}^{\mathrm{new}}(40, [\chi])\)\(^{\oplus 8}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(80, [\chi])\)\(^{\oplus 6}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(160, [\chi])\)\(^{\oplus 4}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(200, [\chi])\)\(^{\oplus 4}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(320, [\chi])\)\(^{\oplus 2}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(400, [\chi])\)\(^{\oplus 3}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(800, [\chi])\)\(^{\oplus 2}\)