LMFDB - Space of modular forms of level 841, weight 2, and Character 841.d

Defining parameters

Level:	$ N $	$=$	$ 841 = 29^{2} $
Weight:	$ k $	$=$	$ 2 $
Character orbit:	$[\chi]$	$=$	841.d (of order $7$ and degree $6$)
Character conductor:	$\operatorname{cond}(\chi)$	$=$	$ 29 $
Character field:			$\Q(\zeta_{7})$
Newform subspaces:			$ 17 $
Sturm bound:			$145$
Trace bound:			$5$
Distinguishing $T_p$:			$2$

Dimensions

The following table gives the dimensions of various subspaces of $M_{2}(841, [\chi])$.

	Total	New	Old
Modular forms	522	486	36
Cusp forms	342	330	12
Eisenstein series	180	156	24

Trace form

$ 330 q + 2 q^{2} + 5 q^{3} - 40 q^{4} - q^{5} + 3 q^{6} - q^{7} + 7 q^{8} - 34 q^{9} + O(q^{10}) $

\( 330 q + 2 q^{2} + 5 q^{3} - 40 q^{4} - q^{5} + 3 q^{6} - q^{7} + 7 q^{8} - 34 q^{9} - 9 q^{10} + 11 q^{11} - 4 q^{12} + 5 q^{13} - 9 q^{14} - 5 q^{15} - 18 q^{16} - 8 q^{17} + 9 q^{18} - q^{19} - 2 q^{20} - 5 q^{21} - 12 q^{22} + 7 q^{23} - 13 q^{24} + 24 q^{25} - 4 q^{26} + 11 q^{27} + 48 q^{28} - 114 q^{30} - 5 q^{31} + 13 q^{32} - 7 q^{33} - 8 q^{34} + q^{35} + 9 q^{36} - 11 q^{37} - 8 q^{38} - 3 q^{39} - 14 q^{40} - 20 q^{41} - 2 q^{42} - 13 q^{43} - 20 q^{44} - 7 q^{45} - 11 q^{47} - 6 q^{48} + 50 q^{49} - q^{50} - 2 q^{51} + 4 q^{52} - 7 q^{53} - 12 q^{54} + 17 q^{55} + 7 q^{56} + 26 q^{57} - 100 q^{59} + 4 q^{60} - 3 q^{61} + 51 q^{62} - 19 q^{63} + 35 q^{64} - 11 q^{65} + 5 q^{66} - 21 q^{67} + 12 q^{68} + 7 q^{69} + 2 q^{70} - 25 q^{71} + 25 q^{73} + 4 q^{74} - 48 q^{75} + 5 q^{76} - 11 q^{77} - 25 q^{78} + 9 q^{79} + 8 q^{80} + 34 q^{81} - 8 q^{82} - 19 q^{83} - 3 q^{84} + 8 q^{85} + 76 q^{86} - 138 q^{88} - 7 q^{89} - 2 q^{90} - 17 q^{91} - 10 q^{92} + 7 q^{93} - 16 q^{94} - 13 q^{95} + 74 q^{96} - q^{97} - 19 q^{98} + 32 q^{99} + O(q^{100}) \)

Display 100 coefficients 10 coefficients

Decomposition of $S_{2}^{\mathrm{new}}(841, [\chi])$ 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
Label	Level	Weight	Char	Prim	Char order	Dim	Rel. Dim	$A$	Field	CM	Self-dual	Inner twists	Rank*	$a_{2}$	$a_{3}$	$a_{5}$	$a_{7}$	Coefficient ring index	Sato-Tate	$q$-expansion
841.2.d.a	$841$	$2$	841.d	29.d	$7$	$6$	$1$	$6.715$	$\Q(\zeta_{14})$	None		$2$	$1$	$-5$	$-2$	$-6$	$-6$	$1$	$\mathrm{SU}(2)[C_{7}]$	$q+(-1+\zeta_{14})q^{2}+(-\zeta_{14}+\zeta_{14}^{4}+\cdots)q^{3}+\cdots$
841.2.d.b	$841$	$2$	841.d	29.d	$7$	$6$	$1$	$6.715$	$\Q(\zeta_{14})$	None		$2$	$0$	$-2$	$2$	$8$	$8$	$1$	$\mathrm{SU}(2)[C_{7}]$	$q+(-\zeta_{14}^{3}-\zeta_{14}^{5})q^{2}+(-\zeta_{14}^{2}+\zeta_{14}^{3}+\cdots)q^{3}+\cdots$
841.2.d.c	$841$	$2$	841.d	29.d	$7$	$6$	$1$	$6.715$	$\Q(\zeta_{14})$	None		$2$	$0$	$2$	$-2$	$8$	$8$	$1$	$\mathrm{SU}(2)[C_{7}]$	$q+(\zeta_{14}^{3}+\zeta_{14}^{5})q^{2}+(\zeta_{14}^{2}-\zeta_{14}^{3}+\cdots)q^{3}+\cdots$
841.2.d.d	$841$	$2$	841.d	29.d	$7$	$6$	$1$	$6.715$	$\Q(\zeta_{14})$	None		$2$	$0$	$2$	$5$	$1$	$1$	$1$	$\mathrm{SU}(2)[C_{7}]$	$q+(1-\zeta_{14}-\zeta_{14}^{3}+\zeta_{14}^{4}-\zeta_{14}^{5})q^{2}+\cdots$
841.2.d.e	$841$	$2$	841.d	29.d	$7$	$6$	$1$	$6.715$	$\Q(\zeta_{14})$	None		$2$	$0$	$5$	$2$	$-6$	$-6$	$1$	$\mathrm{SU}(2)[C_{7}]$	$q+(1-\zeta_{14})q^{2}+(\zeta_{14}-\zeta_{14}^{4})q^{3}+(1+\cdots)q^{4}+\cdots$
841.2.d.f	$841$	$2$	841.d	29.d	$7$	$12$	$2$	$6.715$	12.0.$\cdots$.2	None		$6$	$0$	$-2$	$2$	$2$	$0$	$1$	$\mathrm{SU}(2)[C_{7}]$	$q+(\beta _{1}+\beta _{8})q^{2}+(1+\beta _{2}+\beta _{4}-\beta _{5}+\cdots)q^{3}+\cdots$
841.2.d.g	$841$	$2$	841.d	29.d	$7$	$12$	$2$	$6.715$	12.0.$\cdots$.1	None		$6$	$0$	$-1$	$1$	$-1$	$0$	$1$	$\mathrm{SU}(2)[C_{7}]$	$q-\beta _{1}q^{2}-\beta _{10}q^{3}+(\beta _{4}-\beta _{5})q^{4}+(3\beta _{1}+\cdots)q^{5}+\cdots$
841.2.d.h	$841$	$2$	841.d	29.d	$7$	$12$	$2$	$6.715$	12.0.$\cdots$.1	None		$12$	$0$	$0$	$0$	$-6$	$-4$	$2^{6}$	$\mathrm{SU}(2)[C_{7}]$	$q+\beta _{6}q^{2}-\beta _{9}q^{3}+3\beta _{5}q^{4}+3\beta _{3}q^{5}+\cdots$
841.2.d.i	$841$	$2$	841.d	29.d	$7$	$12$	$2$	$6.715$	12.0.$\cdots$.1	None		$6$	$0$	$1$	$-1$	$-1$	$0$	$1$	$\mathrm{SU}(2)[C_{7}]$	$q+\beta _{1}q^{2}+\beta _{10}q^{3}+(\beta _{4}-\beta _{5})q^{4}+(3\beta _{1}+\cdots)q^{5}+\cdots$
841.2.d.j	$841$	$2$	841.d	29.d	$7$	$12$	$2$	$6.715$	12.0.$\cdots$.2	None		$6$	$0$	$2$	$-2$	$2$	$0$	$1$	$\mathrm{SU}(2)[C_{7}]$	$q+(-\beta _{2}+\beta _{9})q^{2}+(-\beta _{3}+\beta _{10})q^{3}+\cdots$
841.2.d.k	$841$	$2$	841.d	29.d	$7$	$24$	$4$	$6.715$		None		$4$	$0$	$0$	$0$	$2$	$20$		$\mathrm{SU}(2)[C_{7}]$
841.2.d.l	$841$	$2$	841.d	29.d	$7$	$24$	$4$	$6.715$		None		$4$	$0$	$0$	$0$	$-12$	$-8$		$\mathrm{SU}(2)[C_{7}]$
841.2.d.m	$841$	$2$	841.d	29.d	$7$	$24$	$4$	$6.715$		None		$4$	$0$	$0$	$0$	$2$	$-22$		$\mathrm{SU}(2)[C_{7}]$
841.2.d.n	$841$	$2$	841.d	29.d	$7$	$36$	$6$	$6.715$		None		$6$	$0$	$-2$	$-2$	$2$	$4$		$\mathrm{SU}(2)[C_{7}]$
841.2.d.o	$841$	$2$	841.d	29.d	$7$	$36$	$6$	$6.715$		None		$6$	$0$	$2$	$2$	$2$	$4$		$\mathrm{SU}(2)[C_{7}]$
841.2.d.p	$841$	$2$	841.d	29.d	$7$	$48$	$8$	$6.715$		None		$6$	$0$	$-4$	$-6$	$1$	$0$		$\mathrm{SU}(2)[C_{7}]$
841.2.d.q	$841$	$2$	841.d	29.d	$7$	$48$	$8$	$6.715$		None		$6$	$0$	$4$	$6$	$1$	$0$		$\mathrm{SU}(2)[C_{7}]$

Decomposition of $S_{2}^{\mathrm{old}}(841, [\chi])$ into lower level spaces

$ S_{2}^{\mathrm{old}}(841, [\chi]) \cong $ $S_{2}^{\mathrm{new}}(29, [\chi])$$^{\oplus 2}$

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Level:	\( N \)	\(=\)	\( 841 = 29^{2} \)
Weight:	\( k \)	\(=\)	\( 2 \)
Character orbit:	\([\chi]\)	\(=\)	841.d (of order \(7\) and degree \(6\))
Character conductor:	\(\operatorname{cond}(\chi)\)	\(=\)	\( 29 \)
Character field:			\(\Q(\zeta_{7})\)
Newform subspaces:			\( 17 \)
Sturm bound:			\(145\)
Trace bound:			\(5\)
Distinguishing \(T_p\):			\(2\)

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Defining parameters

Dimensions

Trace form

Decomposition of \(S_{2}^{\mathrm{new}}(841, [\chi])\) into newform subspaces

Decomposition of \(S_{2}^{\mathrm{old}}(841, [\chi])\) into lower level spaces

This project is supported by grants from the US National Science Foundation, the UK Engineering and Physical Sciences Research Council, and the Simons Foundation.

Label	841.2.d

Level	$841$
Weight	$2$
Character orbit	841.d
Rep. character	$\chi_{841}(190,\cdot)$
Character field	$\Q(\zeta_{7})$
Dimension	$330$
Newform subspaces	$17$
Sturm bound	$145$
Trace bound	$5$