Space of modular forms of level 900, weight 4, and Character 900.d

• Label: 900.4.d
• Level: $900$
• Weight: $4$
• Character orbit: 900.d
• Rep. character: $\chi_{900}(649,\cdot)$
• Character field: $\Q$
• Dimension: $22$
• Newform subspaces: $11$
• Sturm bound: $720$
• Trace bound: $19$

Defining parameters

Level:	\( N \)	\(=\)	\( 900 = 2^{2} \cdot 3^{2} \cdot 5^{2} \)
Weight:	\( k \)	\(=\)	\( 4 \)
Character orbit:	\([\chi]\)	\(=\)	900.d (of order \(2\) and degree \(1\))
Character conductor:	\(\operatorname{cond}(\chi)\)	\(=\)	\( 5 \)
Character field:			\(\Q\)
Newform subspaces:			\( 11 \)
Sturm bound:			\(720\)
Trace bound:			\(19\)
Distinguishing \(T_p\):			\(7\), \(11\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{4}(900, [\chi])\).

	Total	New	Old
Modular forms	576	22	554
Cusp forms	504	22	482
Eisenstein series	72	0	72

Trace form

\( 22 q + O(q^{10}) \)

Decomposition of \(S_{4}^{\mathrm{new}}(900, [\chi])\) 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
														$a_{2}$	$a_{3}$	$a_{5}$	$a_{7}$
900.4.d.a	$900$	$4$	900.d	5.b	$2$	$2$	$2$	$53.102$	\(\Q(\sqrt{-1}) \)	None		$2$	$0$	\(0\)	\(0\)	\(0\)	\(0\)	$1$	$\mathrm{SU}(2)[C_{2}]$	\(q+26iq^{7}-45q^{11}-44iq^{13}-117iq^{17}+\cdots\)
900.4.d.b	$900$	$4$	900.d	5.b	$2$	$2$	$2$	$53.102$	\(\Q(\sqrt{-1}) \)	None		$2$	$0$	\(0\)	\(0\)	\(0\)	\(0\)	$2$	$\mathrm{SU}(2)[C_{2}]$	\(q+2^{4}iq^{7}-6^{2}q^{11}+5iq^{13}+39iq^{17}+\cdots\)
900.4.d.c	$900$	$4$	900.d	5.b	$2$	$2$	$2$	$53.102$	\(\Q(\sqrt{-1}) \)	None		$2$	$0$	\(0\)	\(0\)	\(0\)	\(0\)	$2$	$\mathrm{SU}(2)[C_{2}]$	\(q+4iq^{7}-6^{2}q^{11}+5iq^{13}-9iq^{17}+\cdots\)
900.4.d.d	$900$	$4$	900.d	5.b	$2$	$2$	$2$	$53.102$	\(\Q(\sqrt{-1}) \)	None		$2$	$0$	\(0\)	\(0\)	\(0\)	\(0\)	$2$	$\mathrm{SU}(2)[C_{2}]$	\(q+iq^{7}-30q^{11}+2iq^{13}-45iq^{17}+\cdots\)
900.4.d.e	$900$	$4$	900.d	5.b	$2$	$2$	$2$	$53.102$	\(\Q(\sqrt{-1}) \)	None		$2$	$0$	\(0\)	\(0\)	\(0\)	\(0\)	$1$	$\mathrm{SU}(2)[C_{2}]$	\(q+13iq^{7}-6q^{11}+5iq^{13}-78iq^{17}+\cdots\)
900.4.d.f	$900$	$4$	900.d	5.b	$2$	$2$	$2$	$53.102$	\(\Q(\sqrt{-1}) \)	\(\Q(\sqrt{-3}) \)		$4$	$1$	\(0\)	\(0\)	\(0\)	\(0\)	$1$	$\mathrm{U}(1)[D_{2}]$	\(q+17iq^{7}+19iq^{13}-107q^{19}-19q^{31}+\cdots\)
900.4.d.g	$900$	$4$	900.d	5.b	$2$	$2$	$2$	$53.102$	\(\Q(\sqrt{-1}) \)	\(\Q(\sqrt{-3}) \)		$4$	$0$	\(0\)	\(0\)	\(0\)	\(0\)	$1$	$\mathrm{U}(1)[D_{2}]$	\(q+37iq^{7}+89iq^{13}+163q^{19}-17^{2}q^{31}+\cdots\)
900.4.d.h	$900$	$4$	900.d	5.b	$2$	$2$	$2$	$53.102$	\(\Q(\sqrt{-1}) \)	None		$2$	$0$	\(0\)	\(0\)	\(0\)	\(0\)	$2$	$\mathrm{SU}(2)[C_{2}]$	\(q+14iq^{7}+24q^{11}-35iq^{13}+51iq^{17}+\cdots\)
900.4.d.i	$900$	$4$	900.d	5.b	$2$	$2$	$2$	$53.102$	\(\Q(\sqrt{-1}) \)	None		$2$	$0$	\(0\)	\(0\)	\(0\)	\(0\)	$2$	$\mathrm{SU}(2)[C_{2}]$	\(q+iq^{7}+30q^{11}+2iq^{13}+45iq^{17}+\cdots\)
900.4.d.j	$900$	$4$	900.d	5.b	$2$	$2$	$2$	$53.102$	\(\Q(\sqrt{-1}) \)	None		$2$	$0$	\(0\)	\(0\)	\(0\)	\(0\)	$1$	$\mathrm{SU}(2)[C_{2}]$	\(q+7iq^{7}+54q^{11}-55iq^{13}+18iq^{17}+\cdots\)
900.4.d.k	$900$	$4$	900.d	5.b	$2$	$2$	$2$	$53.102$	\(\Q(\sqrt{-1}) \)	None		$2$	$0$	\(0\)	\(0\)	\(0\)	\(0\)	$2$	$\mathrm{SU}(2)[C_{2}]$	\(q+8iq^{7}+60q^{11}+43iq^{13}+9iq^{17}+\cdots\)

Decomposition of \(S_{4}^{\mathrm{old}}(900, [\chi])\) into lower level spaces

\( S_{4}^{\mathrm{old}}(900, [\chi]) \cong \) \(S_{4}^{\mathrm{new}}(10, [\chi])\)\(^{\oplus 12}\)\(\oplus\)\(S_{4}^{\mathrm{new}}(20, [\chi])\)\(^{\oplus 6}\)\(\oplus\)\(S_{4}^{\mathrm{new}}(25, [\chi])\)\(^{\oplus 9}\)\(\oplus\)\(S_{4}^{\mathrm{new}}(50, [\chi])\)\(^{\oplus 6}\)\(\oplus\)\(S_{4}^{\mathrm{new}}(100, [\chi])\)\(^{\oplus 3}\)