Space of modular forms of level 38, weight 2, and Character 38.e

• Label: 38.2.e
• Level: $38$
• Weight: $2$
• Character orbit: 38.e
• Rep. character: $\chi_{38}(5,\cdot)$
• Character field: $\Q(\zeta_{9})$
• Dimension: $6$
• Newform subspaces: $1$
• Sturm bound: $10$
• Trace bound: $0$

Defining parameters

Level:	\( N \)	\(=\)	\( 38 = 2 \cdot 19 \)
Weight:	\( k \)	\(=\)	\( 2 \)
Character orbit:	\([\chi]\)	\(=\)	38.e (of order \(9\) and degree \(6\))
Character conductor:	\(\operatorname{cond}(\chi)\)	\(=\)	\( 19 \)
Character field:			\(\Q(\zeta_{9})\)
Newform subspaces:			\( 1 \)
Sturm bound:			\(10\)
Trace bound:			\(0\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{2}(38, [\chi])\).

	Total	New	Old
Modular forms	42	6	36
Cusp forms	18	6	12
Eisenstein series	24	0	24

Trace form

6 * q - 3 * q^3 - 3 * q^6 - 6 * q^7 - 3 * q^8 - 3 * q^9 - 6 * q^11 + 12 * q^13 + 12 * q^14 - 6 * q^15 - 12 * q^17 - 6 * q^18 + 18 * q^19 + 12 * q^20 + 24 * q^21 - 12 * q^23 - 3 * q^24 + 6 * q^26 + 3 * q^27 - 6 * q^28 - 18 * q^29 + 6 * q^31 + 3 * q^33 - 12 * q^34 - 12 * q^35 - 3 * q^36 - 12 * q^37 - 9 * q^38 - 12 * q^39 + 3 * q^41 - 12 * q^42 - 6 * q^43 + 6 * q^45 + 30 * q^47 + 6 * q^48 - 15 * q^49 + 3 * q^50 + 21 * q^51 - 6 * q^52 + 24 * q^53 + 9 * q^54 + 18 * q^55 + 12 * q^56 - 24 * q^57 + 24 * q^58 - 3 * q^59 - 6 * q^60 + 6 * q^61 + 18 * q^62 + 12 * q^63 - 3 * q^64 + 12 * q^65 + 3 * q^66 - 9 * q^67 - 3 * q^68 - 6 * q^69 - 12 * q^70 - 18 * q^71 + 6 * q^72 - 30 * q^73 - 18 * q^74 - 6 * q^76 - 12 * q^77 - 18 * q^78 + 6 * q^79 - 33 * q^81 + 3 * q^82 - 6 * q^83 + 6 * q^84 - 24 * q^85 + 12 * q^86 + 18 * q^87 - 6 * q^88 + 12 * q^90 - 12 * q^91 + 6 * q^92 + 6 * q^93 - 12 * q^94 + 3 * q^97 + 21 * q^99

Decomposition of \(S_{2}^{\mathrm{new}}(38, [\chi])\) into newform subspaces

Label	Level	Weight	Char	Prim	Char order	Dim	Rel. Dim	$A$	Field	CM	Self-dual	Twist minimal	Largest	Maximal	Minimal twist	Inner twists	Rank*	Traces				Coefficient ring index	Sato-Tate	$q$-expansion
																		$a_{2}$	$a_{3}$	$a_{5}$	$a_{7}$
38.2.e.a	$38$	$2$	38.e	19.e	$9$	$6$	$1$	$0.303$	\(\Q(\zeta_{18})\)	None		✓	✓	✓	38.2.e.a	$2$	$0$	\(0\)	\(-3\)	\(0\)	\(-6\)	$1$	$\mathrm{SU}(2)[C_{9}]$	\(q-\zeta_{18}q^{2}+(-\zeta_{18}^{3}-\zeta_{18}^{5})q^{3}+\zeta_{18}^{2}q^{4}+\cdots\)

Decomposition of \(S_{2}^{\mathrm{old}}(38, [\chi])\) into lower level spaces

\( S_{2}^{\mathrm{old}}(38, [\chi]) \simeq \) \(S_{2}^{\mathrm{new}}(19, [\chi])\)\(^{\oplus 2}\)