Space of modular forms of level 168, weight 2, and Character 168.ba

• Label: 168.2.ba
• Level: $168$
• Weight: $2$
• Character orbit: 168.ba
• Rep. character: $\chi_{168}(5,\cdot)$
• Character field: $\Q(\zeta_{6})$
• Dimension: $56$
• Newform subspaces: $3$
• Sturm bound: $64$
• Trace bound: $3$

Defining parameters

Level:	$N$	$=$	$168 = 2^{3} \cdot 3 \cdot 7$
Weight:	$k$	$=$	$2$
Character orbit:	$[\chi]$	$=$	168.ba (of order $6$ and degree $2$)
Character conductor:	$\operatorname{cond}(\chi)$	$=$	$168$
Character field:			$\Q(\zeta_{6})$
Newform subspaces:			$3$
Sturm bound:			$64$
Trace bound:			$3$
Distinguishing $T_p$:			$5$

Dimensions

The following table gives the dimensions of various subspaces of $M_{2}(168, [\chi])$.

	Total	New	Old
Modular forms	72	72	0
Cusp forms	56	56	0
Eisenstein series	16	16	0

Trace form

56 * q - 2 * q^4 - 8 * q^7 - 2 * q^9 - 6 * q^10 - 18 * q^12 - 20 * q^15 - 10 * q^16 - 4 * q^22 - 12 * q^24 + 8 * q^25 - 18 * q^28 + 22 * q^30 - 12 * q^31 - 6 * q^33 + 4 * q^36 - 8 * q^39 - 66 * q^40 + 36 * q^42 - 8 * q^46 - 16 * q^49 - 48 * q^52 + 60 * q^54 + 4 * q^57 + 22 * q^58 - 8 * q^60 - 30 * q^63 + 4 * q^64 + 54 * q^66 + 42 * q^70 + 42 * q^72 - 36 * q^73 - 68 * q^78 - 36 * q^79 + 6 * q^81 + 48 * q^82 + 48 * q^84 - 24 * q^87 - 26 * q^88 + 48 * q^94 + 90 * q^96

Decomposition of $S_{2}^{\mathrm{new}}(168, [\chi])$ 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
																		$a_{2}$	$a_{3}$	$a_{5}$	$a_{7}$
168.2.ba.a	$168$	$2$	168.ba	168.aa	$6$	$4$	$2$	$1.341$	$\Q(\sqrt{2}, \sqrt{-3})$	$\Q(\sqrt{-6})$		✓			168.2.ba.a	$4$	$0$	$0$	$-6$	$6$	$-2$	$1$	$\mathrm{U}(1)[D_{6}]$	$q+\beta _{1}q^{2}+(-2-\beta _{2})q^{3}+2\beta _{2}q^{4}+\cdots$
168.2.ba.b	$168$	$2$	168.ba	168.aa	$6$	$4$	$2$	$1.341$	$\Q(\sqrt{2}, \sqrt{-3})$	$\Q(\sqrt{-6})$		✓			168.2.ba.a	$4$	$0$	$0$	$6$	$-6$	$-2$	$1$	$\mathrm{U}(1)[D_{6}]$	$q+\beta _{1}q^{2}+(2+\beta _{2})q^{3}+2\beta _{2}q^{4}+(-1+\cdots)q^{5}+\cdots$
168.2.ba.c	$168$	$2$	168.ba	168.aa	$6$	$48$	$24$	$1.341$		None		✓	✓		168.2.ba.c	$8$	$0$	$0$	$0$	$0$	$-4$		$\mathrm{SU}(2)[C_{6}]$