Space of modular forms of level 650, weight 2, and trivial character

• Label: 650.2.a
• Level: $650$
• Weight: $2$
• Character orbit: 650.a
• Rep. character: $\chi_{650}(1,\cdot)$
• Character field: $\Q$
• Dimension: $19$
• Newform subspaces: $15$
• Sturm bound: $210$
• Trace bound: $7$

Defining parameters

Level:	\( N \)	\(=\)	\( 650 = 2 \cdot 5^{2} \cdot 13 \)
Weight:	\( k \)	\(=\)	\( 2 \)
Character orbit:	\([\chi]\)	\(=\)	650.a (trivial)
Character field:			\(\Q\)
Newform subspaces:			\( 15 \)
Sturm bound:			\(210\)
Trace bound:			\(7\)
Distinguishing \(T_p\):			\(3\), \(7\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{2}(\Gamma_0(650))\).

	Total	New	Old
Modular forms	116	19	97
Cusp forms	93	19	74
Eisenstein series	23	0	23

The following table gives the dimensions of the cuspidal new subspaces with specified eigenvalues for the Atkin-Lehner operators and the Fricke involution.

\(2\)	\(5\)	\(13\)	Fricke	Dim
\(+\)	\(+\)	\(+\)	\(+\)	\(3\)
\(+\)	\(+\)	\(-\)	\(-\)	\(3\)
\(+\)	\(-\)	\(+\)	\(-\)	\(3\)
\(+\)	\(-\)	\(-\)	\(+\)	\(1\)
\(-\)	\(+\)	\(+\)	\(-\)	\(3\)
\(-\)	\(-\)	\(+\)	\(+\)	\(1\)
\(-\)	\(-\)	\(-\)	\(-\)	\(5\)
Plus space			\(+\)	\(5\)
Minus space			\(-\)	\(14\)

Trace form

19 * q - q^2 + 2 * q^3 + 19 * q^4 + 4 * q^6 + 8 * q^7 - q^8 + 25 * q^9 + 4 * q^11 + 2 * q^12 - q^13 + 2 * q^14 + 19 * q^16 + 8 * q^17 - 5 * q^18 - 8 * q^19 + 12 * q^21 + 4 * q^22 - 4 * q^23 + 4 * q^24 + 3 * q^26 + 14 * q^27 + 8 * q^28 + 10 * q^29 + 16 * q^31 - q^32 - 20 * q^33 - 10 * q^34 + 25 * q^36 - 2 * q^37 - 2 * q^41 + 18 * q^42 + 14 * q^43 + 4 * q^44 + 20 * q^46 + 2 * q^48 + 53 * q^49 - 50 * q^51 - q^52 - 26 * q^53 - 8 * q^54 + 2 * q^56 + 8 * q^57 - 2 * q^58 - 36 * q^59 + 18 * q^61 + 4 * q^62 + 19 * q^64 - 12 * q^66 + 8 * q^68 - 68 * q^69 - 48 * q^71 - 5 * q^72 - 2 * q^73 + 4 * q^74 - 8 * q^76 - 24 * q^77 - 2 * q^78 + 28 * q^79 - 29 * q^81 - 26 * q^82 - 24 * q^83 + 12 * q^84 - 16 * q^87 + 4 * q^88 - 58 * q^89 + 10 * q^91 - 4 * q^92 + 32 * q^93 + 2 * q^94 + 4 * q^96 - 6 * q^97 + 7 * q^98 - 52 * q^99

Decomposition of \(S_{2}^{\mathrm{new}}(\Gamma_0(650))\) 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					A-L signs			Fricke sign	Coefficient ring index	Sato-Tate	$q$-expansion
																		$a_{2}$	$a_{3}$	$a_{5}$	$a_{7}$		2	5	13
650.2.a.a	$650$	$2$	650.a	1.a	$1$	$1$	$1$	$5.190$	\(\Q\)	None	✓	✓			650.2.a.a	$1$	$1$	\(-1\)	\(-3\)	\(0\)	\(0\)		$+$	$+$	$+$	$+$	$1$	$\mathrm{SU}(2)$	\(q-q^{2}-3q^{3}+q^{4}+3q^{6}-q^{8}+6q^{9}+\cdots\)
650.2.a.b	$650$	$2$	650.a	1.a	$1$	$1$	$1$	$5.190$	\(\Q\)	None	✓	✓	✓	✓	650.2.a.b	$1$	$1$	\(-1\)	\(-2\)	\(0\)	\(-1\)		$+$	$-$	$-$	$+$	$1$	$\mathrm{SU}(2)$	\(q-q^{2}-2q^{3}+q^{4}+2q^{6}-q^{7}-q^{8}+\cdots\)
650.2.a.c	$650$	$2$	650.a	1.a	$1$	$1$	$1$	$5.190$	\(\Q\)	None	✓				130.2.a.c	$1$	$0$	\(-1\)	\(-2\)	\(0\)	\(4\)		$+$	$+$	$-$	$-$	$1$	$\mathrm{SU}(2)$	\(q-q^{2}-2q^{3}+q^{4}+2q^{6}+4q^{7}-q^{8}+\cdots\)
650.2.a.d	$650$	$2$	650.a	1.a	$1$	$1$	$1$	$5.190$	\(\Q\)	None	✓				130.2.a.b	$1$	$1$	\(-1\)	\(0\)	\(0\)	\(0\)		$+$	$+$	$+$	$+$	$1$	$\mathrm{SU}(2)$	\(q-q^{2}+q^{4}-q^{8}-3q^{9}-q^{13}+q^{16}+\cdots\)
650.2.a.e	$650$	$2$	650.a	1.a	$1$	$1$	$1$	$5.190$	\(\Q\)	None	✓	✓			650.2.a.e	$1$	$0$	\(-1\)	\(1\)	\(0\)	\(4\)		$+$	$+$	$-$	$-$	$1$	$\mathrm{SU}(2)$	\(q-q^{2}+q^{3}+q^{4}-q^{6}+4q^{7}-q^{8}+\cdots\)
650.2.a.f	$650$	$2$	650.a	1.a	$1$	$1$	$1$	$5.190$	\(\Q\)	None	✓	✓			650.2.a.f	$1$	$1$	\(-1\)	\(2\)	\(0\)	\(-5\)		$+$	$+$	$+$	$+$	$1$	$\mathrm{SU}(2)$	\(q-q^{2}+2q^{3}+q^{4}-2q^{6}-5q^{7}-q^{8}+\cdots\)
650.2.a.g	$650$	$2$	650.a	1.a	$1$	$1$	$1$	$5.190$	\(\Q\)	None	✓				26.2.a.b	$1$	$0$	\(-1\)	\(3\)	\(0\)	\(-1\)		$+$	$+$	$-$	$-$	$1$	$\mathrm{SU}(2)$	\(q-q^{2}+3q^{3}+q^{4}-3q^{6}-q^{7}-q^{8}+\cdots\)
650.2.a.h	$650$	$2$	650.a	1.a	$1$	$1$	$1$	$5.190$	\(\Q\)	None	✓	✓			650.2.a.f	$1$	$0$	\(1\)	\(-2\)	\(0\)	\(5\)		$-$	$-$	$-$	$-$	$1$	$\mathrm{SU}(2)$	\(q+q^{2}-2q^{3}+q^{4}-2q^{6}+5q^{7}+q^{8}+\cdots\)
650.2.a.i	$650$	$2$	650.a	1.a	$1$	$1$	$1$	$5.190$	\(\Q\)	None	✓	✓	✓	✓	650.2.a.e	$1$	$1$	\(1\)	\(-1\)	\(0\)	\(-4\)		$-$	$-$	$+$	$+$	$1$	$\mathrm{SU}(2)$	\(q+q^{2}-q^{3}+q^{4}-q^{6}-4q^{7}+q^{8}+\cdots\)
650.2.a.j	$650$	$2$	650.a	1.a	$1$	$1$	$1$	$5.190$	\(\Q\)	None	✓				26.2.a.a	$1$	$0$	\(1\)	\(-1\)	\(0\)	\(1\)		$-$	$+$	$+$	$-$	$1$	$\mathrm{SU}(2)$	\(q+q^{2}-q^{3}+q^{4}-q^{6}+q^{7}+q^{8}+\cdots\)
650.2.a.k	$650$	$2$	650.a	1.a	$1$	$1$	$1$	$5.190$	\(\Q\)	None	✓	✓			650.2.a.b	$1$	$0$	\(1\)	\(2\)	\(0\)	\(1\)		$-$	$+$	$+$	$-$	$1$	$\mathrm{SU}(2)$	\(q+q^{2}+2q^{3}+q^{4}+2q^{6}+q^{7}+q^{8}+\cdots\)
650.2.a.l	$650$	$2$	650.a	1.a	$1$	$1$	$1$	$5.190$	\(\Q\)	None	✓				130.2.a.a	$1$	$0$	\(1\)	\(2\)	\(0\)	\(4\)		$-$	$+$	$+$	$-$	$1$	$\mathrm{SU}(2)$	\(q+q^{2}+2q^{3}+q^{4}+2q^{6}+4q^{7}+q^{8}+\cdots\)
650.2.a.m	$650$	$2$	650.a	1.a	$1$	$1$	$1$	$5.190$	\(\Q\)	None	✓	✓			650.2.a.a	$1$	$0$	\(1\)	\(3\)	\(0\)	\(0\)		$-$	$-$	$-$	$-$	$1$	$\mathrm{SU}(2)$	\(q+q^{2}+3q^{3}+q^{4}+3q^{6}+q^{8}+6q^{9}+\cdots\)
650.2.a.n	$650$	$2$	650.a	1.a	$1$	$3$	$3$	$5.190$	3.3.940.1	None	✓		✓	✓	130.2.b.a	$1$	$0$	\(-3\)	\(0\)	\(0\)	\(2\)		$+$	$-$	$+$	$-$	$1$	$\mathrm{SU}(2)$	\(q-q^{2}+\beta _{1}q^{3}+q^{4}-\beta _{1}q^{6}+(1+\beta _{1}+\cdots)q^{7}+\cdots\)
650.2.a.o	$650$	$2$	650.a	1.a	$1$	$3$	$3$	$5.190$	3.3.940.1	None	✓		✓		130.2.b.a	$1$	$0$	\(3\)	\(0\)	\(0\)	\(-2\)		$-$	$-$	$-$	$-$	$1$	$\mathrm{SU}(2)$	\(q+q^{2}-\beta _{1}q^{3}+q^{4}-\beta _{1}q^{6}+(-1+\cdots)q^{7}+\cdots\)

Decomposition of \(S_{2}^{\mathrm{old}}(\Gamma_0(650))\) into lower level spaces

\( S_{2}^{\mathrm{old}}(\Gamma_0(650)) \simeq \) \(S_{2}^{\mathrm{new}}(\Gamma_0(26))\)\(^{\oplus 3}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(\Gamma_0(50))\)\(^{\oplus 2}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(\Gamma_0(65))\)\(^{\oplus 4}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(\Gamma_0(130))\)\(^{\oplus 2}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(\Gamma_0(325))\)\(^{\oplus 2}\)