LMFDB - Newform orbit 845.2.c.g

Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms

[N,k,chi] = [845,2,Mod(506,845)]

mf = mfinit([N,k,chi],0)

lf = mfeigenbasis(mf)

from sage.modular.dirichlet import DirichletCharacter

H = DirichletGroup(845, base_ring=CyclotomicField(2))

chi = DirichletCharacter(H, H._module([0, 1]))

N = Newforms(chi, 2, names="a")

//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code

chi := DirichletCharacter("845.506");

S:= CuspForms(chi, 2);

N := Newforms(S);

Level:	$ N $	$=$	$ 845 = 5 \cdot 13^{2} $
Weight:	$ k $	$=$	$ 2 $
Character orbit:	$[\chi]$	$=$	845.c (of order $2$, degree $1$, not minimal)

Newform invariants

comment: select newform

sage: f = N[0] # Warning: the index may be different

gp: f = lf[1] \\ Warning: the index may be different

Self dual:	no
Analytic conductor:	$6.74735897080$
Analytic rank:	$0$
Dimension:	$8$
Coefficient field:	8.0.22581504.2
comment: defining polynomial gp: f.mod \\ as an extension of the character field
Defining polynomial:	$ x^{8} - 4x^{7} + 5x^{6} + 2x^{5} - 11x^{4} + 4x^{3} + 20x^{2} - 32x + 16 $ x^8 - 4x^7 + 5x^6 + 2x^5 - 11x^4 + 4x^3 + 20x^2 - 32*x + 16
Coefficient ring:	$\Z[a_1, a_2, a_3]$
Coefficient ring index:	$ 2^{4} $
Twist minimal:	no (minimal twist has level 65)
Sato-Tate group:	$\mathrm{SU}(2)[C_{2}]$

$q$-expansion

comment: q-expansion

sage: f.q_expansion() # note that sage often uses an isomorphic number field

gp: mfcoefs(f, 20)

Coefficients of the $q$-expansion are expressed in terms of a basis $1,\beta_1,\ldots,\beta_{7}$ for the coefficient ring described below. We also show the integral $q$-expansion of the trace form.

$f(q)$	$=$	$ q + \beta_1 q^{2} + ( - \beta_{3} - 1) q^{3} + (\beta_{5} + \beta_{2} - 1) q^{4} + \beta_{6} q^{5} + ( - \beta_{7} + \beta_{6} + \cdots - \beta_1) q^{6} + ( - \beta_{7} + 2 \beta_{6} - \beta_{4}) q^{7}+ \cdots + (4 \beta_{6} - 2 \beta_{4} - 2 \beta_1) q^{99}+O(q^{100}) $ q + b1 * q^2 + (-b3 - 1) * q^3 + (b5 + b2 - 1) * q^4 + b6 * q^5 + (-b7 + b6 + b4 - b1) * q^6 + (-b7 + 2b6 - b4) q^7 + (-b7 + 2b6 + b4) q^8 + (-2b2 + 2) q^9 + (-b2 + 1) * q^10 + (-b7 - 2b6 - 2b4 - 2b1) q^11 + (-2b5 - 3b2 + 4) * q^12 + (b5 - 3b2 + 2) q^14 + (-b6 - b4) * q^15 + (b5 + 2b3 - b2 + 2) q^16 + (2b5 + b3 + 1) q^17 + (2b7 - 4b6 + 2b1) q^18 + (b7 - 4b6) q^19 + (b7 + b1) * q^20 + (b7 - 2b4) q^21 + (-b3 - b2 + 3) * q^22 + (-b3 + 2b2 + 1) q^23 + (b7 - 4b6 + 4b1) * q^24 - q^25 + (2b5 + b3 + 2b2 - 1) * q^27 + (b7 - 2b6 - b4 + b1) q^28 + (-2b5 - 2b2 + 3) * q^29 + (b5 - b3 + b2 - 2) * q^30 + (-2b7 - 2b6) * q^31 + (b7 + b4 + b1) * q^32 + (3b7 + 4b6 - b4) * q^33 + (b7 - b6 + b4 - b1) * q^34 + (b5 + b3 - 2) * q^35 + (2b5 - 2b3 + 4b2 - 8) q^36 + (b7 + 2b6 + 3b4 + 2b1) q^37 + (-b3 + 5b2 - 5) q^38 + (b5 - b3 - 2) * q^40 + (-b7 - 2b6) q^41 + (2b5 - 3b3 + b2 - 3) * q^42 + (2b5 + b3 + 1) q^43 + (-2b7 - 5b6 - 3b4 - b1) q^44 - 2b1 q^45 + (-3b7 + 5b6 + b4 + b1) * q^46 + (2b7 + 4b6 + 4b1) q^47 + (-b3 + 3b2 - 9) q^48 + (4b5 + 4b3 - 2b2) q^49 - b1 * q^50 + (-2b5 - 2b3 - 2b2 - 1) q^51 + (2b2 - 4) q^53 + (-b7 + 3b6 + b4 - 3b1) * q^54 + (b5 + 2b3 + 2b2) * q^55 + (4b5 - 2b3 - 2b2 - 3) q^56 + (-b7 + 4b6 + 3b4 - 2b1) q^57 + (2b7 - 4b6 - 2b4 + 5b1) * q^58 + (-b7 + 4b6 + 2b1) * q^59 + (-2b7 + b6 - 3b1) * q^60 + (2b5 + 2b3 + 2b2 + 7) q^61 + 2b3 q^62 + (2b7 - 2b6 - 6b1) q^63 + (2b5 + 4b3 + 1) * q^64 + (b5 - 4b3 - b2) q^66 + (-b7 - 8b6 - b4) q^67 + (2b5 + 2b3 + b2 + 4) * q^68 + (-2b5 - 2b3 - 4b2 + 5) q^69 + (b7 - b6 - 3b1) q^70 + (-3b7 - 4b6 - 6b4) q^71 + (-2b7 + 2b6 + 4b4 - 6b1) * q^72 + (-4b7 - 2b6 - 2b4 + 2b1) * q^73 + (-b5 + 2b3 + b2 - 2) q^74 + (b3 + 1) * q^75 + (-4b7 + 3b6 + b4 - 5b1) q^76 + (-2b5 + 3b3 + 4b2 - 5) q^77 + (2b3 + 6b2 - 4) * q^79 + (b7 + b6 + 2b4 - b1) q^80 + (-4b5 + 2b2 - 3) * q^81 + (b3 + b2 - 1) * q^82 + (2b7 + 2b6 - 2b4) q^83 + (-2b7 + 5b6 + b4 - 5b1) q^84 + (2b7 + b6 + b4) q^85 + (b7 - b6 + b4 - b1) * q^86 + (4b5 - b3 + 6b2 - 9) * q^87 + (2b5 - 3b3 + 3) * q^88 + (-b7 + 2b6 + 2b4 + 8b1) q^89 + (-2b5 - 2b2 + 6) * q^90 + (2b3 - 3b2 + 8) * q^92 + (2b7 + 2b6 + 4b4 + 4b1) * q^93 + (4b5 - 2b3 + 2b2 - 10) q^94 + (-b5 + 4) * q^95 + (-2b7 - b6 + b4 - b1) q^96 + (-b7 + 2b6 + 3b4 + 2b1) q^97 + (6b7 - 8b6 - 4b1) q^98 + (4b6 - 2b4 - 2b1) q^99
$\operatorname{Tr}(f)(q)$	$=$	$ 8 q - 4 q^{3} - 4 q^{4} + 8 q^{9} + 4 q^{10} + 20 q^{12} + 4 q^{14} + 4 q^{16} + 4 q^{17} + 24 q^{22} + 20 q^{23} - 8 q^{25} - 4 q^{27} + 16 q^{29} - 8 q^{30} - 20 q^{35} - 40 q^{36} - 16 q^{38} - 12 q^{40}+ \cdots + 32 q^{95}+O(q^{100}) $ 8 * q - 4 * q^3 - 4 * q^4 + 8 * q^9 + 4 * q^10 + 20 * q^12 + 4 * q^14 + 4 * q^16 + 4 * q^17 + 24 * q^22 + 20 * q^23 - 8 * q^25 - 4 * q^27 + 16 * q^29 - 8 * q^30 - 20 * q^35 - 40 * q^36 - 16 * q^38 - 12 * q^40 - 8 * q^42 + 4 * q^43 - 56 * q^48 - 24 * q^49 - 8 * q^51 - 24 * q^53 - 24 * q^56 + 56 * q^61 - 8 * q^62 - 8 * q^64 + 12 * q^66 + 28 * q^68 + 32 * q^69 - 20 * q^74 + 4 * q^75 - 36 * q^77 - 16 * q^79 - 16 * q^81 - 8 * q^82 - 44 * q^87 + 36 * q^88 + 40 * q^90 + 44 * q^92 - 64 * q^94 + 32 * q^95

Basis of coefficient ring in terms of a root $\nu$ of $ x^{8} - 4x^{7} + 5x^{6} + 2x^{5} - 11x^{4} + 4x^{3} + 20x^{2} - 32x + 16 $ x^8 - 4*x^7 + 5*x^6 + 2*x^5 - 11*x^4 + 4*x^3 + 20*x^2 - 32*x + 16 :

$\beta_{1}$	$=$	$ ( -\nu^{7} + 4\nu^{6} - 5\nu^{5} - 2\nu^{4} + 11\nu^{3} - 4\nu^{2} - 28\nu + 32 ) / 8 $ (-v^7 + 4v^6 - 5v^5 - 2v^4 + 11v^3 - 4v^2 - 28v + 32) / 8
$\beta_{2}$	$=$	$ ( \nu^{7} - 2\nu^{6} - \nu^{5} + 4\nu^{4} - \nu^{3} - 6\nu^{2} + 10\nu ) / 4 $ (v^7 - 2v^6 - v^5 + 4v^4 - v^3 - 6v^2 + 10v) / 4
$\beta_{3}$	$=$	$ ( -3\nu^{7} + 8\nu^{6} - 3\nu^{5} - 10\nu^{4} + 13\nu^{3} + 8\nu^{2} - 32\nu + 24 ) / 8 $ (-3v^7 + 8v^6 - 3v^5 - 10v^4 + 13v^3 + 8v^2 - 32*v + 24) / 8
$\beta_{4}$	$=$	$ ( -5\nu^{7} + 12\nu^{6} - 5\nu^{5} - 18\nu^{4} + 19\nu^{3} + 28\nu^{2} - 64\nu + 40 ) / 8 $ (-5v^7 + 12v^6 - 5v^5 - 18v^4 + 19v^3 + 28v^2 - 64*v + 40) / 8
$\beta_{5}$	$=$	$ ( -3\nu^{7} + 9\nu^{6} - 5\nu^{5} - 13\nu^{4} + 21\nu^{3} + 13\nu^{2} - 54\nu + 40 ) / 4 $ (-3v^7 + 9v^6 - 5v^5 - 13v^4 + 21v^3 + 13v^2 - 54*v + 40) / 4
$\beta_{6}$	$=$	$ ( -4\nu^{7} + 11\nu^{6} - 6\nu^{5} - 17\nu^{4} + 24\nu^{3} + 15\nu^{2} - 62\nu + 48 ) / 4 $ (-4v^7 + 11v^6 - 6v^5 - 17v^4 + 24v^3 + 15v^2 - 62*v + 48) / 4
$\beta_{7}$	$=$	$ ( -3\nu^{7} + 7\nu^{6} - 3\nu^{5} - 11\nu^{4} + 15\nu^{3} + 11\nu^{2} - 40\nu + 30 ) / 2 $ (-3v^7 + 7v^6 - 3v^5 - 11v^4 + 15v^3 + 11v^2 - 40*v + 30) / 2

Display $\nu^j$ in terms of $\beta_i$

$\nu$	$=$	$ ( \beta_{3} + \beta_{2} - \beta _1 + 1 ) / 2 $ (b3 + b2 - b1 + 1) / 2
$\nu^{2}$	$=$	$ ( -\beta_{6} + \beta_{5} + \beta_{4} + \beta_{2} - \beta _1 + 1 ) / 2 $ (-b6 + b5 + b4 + b2 - b1 + 1) / 2
$\nu^{3}$	$=$	$ ( \beta_{7} - 2\beta_{6} + 2\beta_{5} - \beta_{4} + \beta_{3} + 2\beta_{2} - 2\beta _1 - 1 ) / 2 $ (b7 - 2b6 + 2b5 - b4 + b3 + 2b2 - 2b1 - 1) / 2
$\nu^{4}$	$=$	$ ( \beta_{7} - 5\beta_{6} + 3\beta_{5} + \beta_{4} + 2\beta_{3} + \beta_{2} + \beta_1 ) / 2 $ (b7 - 5b6 + 3b5 + b4 + 2*b3 + b2 + b1) / 2
$\nu^{5}$	$=$	$ ( \beta_{7} - 4\beta_{6} + 4\beta_{5} - 3\beta_{4} + 2\beta_{3} - 3\beta_{2} - \beta _1 + 6 ) / 2 $ (b7 - 4b6 + 4b5 - 3b4 + 2b3 - 3*b2 - b1 + 6) / 2
$\nu^{6}$	$=$	$ ( -3\beta_{7} - 2\beta_{6} + 4\beta_{5} + 8\beta_{3} - 2\beta_{2} + 5 ) / 2 $ (-3b7 - 2b6 + 4b5 + 8b3 - 2*b2 + 5) / 2
$\nu^{7}$	$=$	$ ( -8\beta_{7} + 4\beta_{6} + 8\beta_{5} - 2\beta_{4} + \beta_{3} - 5\beta_{2} - 3\beta _1 + 11 ) / 2 $ (-8b7 + 4b6 + 8b5 - 2b4 + b3 - 5b2 - 3b1 + 11) / 2

Display $\beta_i$ in terms of $\nu^j$

Character values

We give the values of $\chi$ on generators for $\left(\mathbb{Z}/845\mathbb{Z}\right)^\times$.

$n$	$171$	$677$
$\chi(n)$	$-1$	$1$

Embeddings

For each embedding $\iota_m$ of the coefficient field, the values $\iota_m(a_n)$ are shown below.

For more information on an embedded modular form you can click on its label.

comment: embeddings in the coefficient field

gp: mfembed(f)

Label

$\iota_m(\nu)$

$ a_{2} $

$ a_{3} $

$ a_{4} $

$ a_{5} $

$ a_{6} $

$ a_{7} $

$ a_{8} $

$ a_{9} $

$ a_{10} $

506.1

0.665665	+	1.24775i
1.20036	+	0.747754i
−1.27597	+	0.609843i
1.40994	+	0.109843i
1.40994	−	0.109843i
−1.27597	−	0.609843i
1.20036	−	0.747754i
0.665665	−	1.24775i

−

2.49551i

−2.82684

−4.22756

1.00000i

7.05440i

1.90521i

5.55889i

4.99102

2.49551

506.2

−

1.49551i

0.0947876

−0.236543

−

1.00000i

−

0.141756i

−

4.82684i

−

2.63726i

−2.99102

−1.49551

506.3

−

1.21969i

2.33225

0.512364

1.00000i

−

2.84461i

3.60020i

−

3.06430i

2.43937

1.21969

506.4

−

0.219687i

−1.60020

1.95174

−

1.00000i

0.351542i

0.332247i

−

0.868145i

−0.439374

−0.219687

506.5

0.219687i

−1.60020

1.95174

1.00000i

−

0.351542i

−

0.332247i

0.868145i

−0.439374

−0.219687

506.6

1.21969i

2.33225

0.512364

−

1.00000i

2.84461i

−

3.60020i

3.06430i

2.43937

1.21969

506.7

1.49551i

0.0947876

−0.236543

1.00000i

0.141756i

4.82684i

2.63726i

−2.99102

−1.49551

506.8

2.49551i

−2.82684

−4.22756

−

1.00000i

−

7.05440i

−

1.90521i

−

5.55889i

4.99102

2.49551

Inner twists

Char	Parity	Ord	Mult	Type
1.a	even	1	1	trivial
13.b	even	2	1	inner

Twists

By twisting character orbit
Char	Parity	Ord	Mult	Type	Twist	Min	Dim
1.a	even	1	1	trivial	845.2.c.g		8
13.b	even	2	1	inner	845.2.c.g		8
13.c	even	3	1		65.2.m.a	✓	8
13.c	even	3	1		845.2.m.g		8
13.d	odd	4	1		845.2.a.l		4
13.d	odd	4	1		845.2.a.m		4
13.e	even	6	1		65.2.m.a	✓	8
13.e	even	6	1		845.2.m.g		8
13.f	odd	12	2		845.2.e.m		8
13.f	odd	12	2		845.2.e.n		8
39.f	even	4	1		7605.2.a.cf		4
39.f	even	4	1		7605.2.a.cj		4
39.h	odd	6	1		585.2.bu.c		8
39.i	odd	6	1		585.2.bu.c		8
52.i	odd	6	1		1040.2.da.b		8
52.j	odd	6	1		1040.2.da.b		8
65.g	odd	4	1		4225.2.a.bi		4
65.g	odd	4	1		4225.2.a.bl		4
65.l	even	6	1		325.2.n.d		8
65.n	even	6	1		325.2.n.d		8
65.q	odd	12	1		325.2.m.b		8
65.q	odd	12	1		325.2.m.c		8
65.r	odd	12	1		325.2.m.b		8
65.r	odd	12	1		325.2.m.c		8

By twisted newform orbit
Twist	Min	Dim	Char	Parity	Ord	Mult	Type
65.2.m.a	✓	8	13.c	even	3	1
65.2.m.a	✓	8	13.e	even	6	1
325.2.m.b		8	65.q	odd	12	1
325.2.m.b		8	65.r	odd	12	1
325.2.m.c		8	65.q	odd	12	1
325.2.m.c		8	65.r	odd	12	1
325.2.n.d		8	65.l	even	6	1
325.2.n.d		8	65.n	even	6	1
585.2.bu.c		8	39.h	odd	6	1
585.2.bu.c		8	39.i	odd	6	1
845.2.a.l		4	13.d	odd	4	1
845.2.a.m		4	13.d	odd	4	1
845.2.c.g		8	1.a	even	1	1	trivial
845.2.c.g		8	13.b	even	2	1	inner
845.2.e.m		8	13.f	odd	12	2
845.2.e.n		8	13.f	odd	12	2
845.2.m.g		8	13.c	even	3	1
845.2.m.g		8	13.e	even	6	1
1040.2.da.b		8	52.i	odd	6	1
1040.2.da.b		8	52.j	odd	6	1
4225.2.a.bi		4	65.g	odd	4	1
4225.2.a.bl		4	65.g	odd	4	1
7605.2.a.cf		4	39.f	even	4	1
7605.2.a.cj		4	39.f	even	4	1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator $ T_{2}^{8} + 10T_{2}^{6} + 27T_{2}^{4} + 22T_{2}^{2} + 1 $ T2^8 + 10*T2^6 + 27*T2^4 + 22*T2^2 + 1 acting on $S_{2}^{\mathrm{new}}(845, [\chi])$.

Hecke characteristic polynomials

$p$	$F_p(T)$
$2$	$ T^{8} + 10 T^{6} + \cdots + 1 $ T^8 + 10T^6 + 27T^4 + 22*T^2 + 1
$3$	$ (T^{4} + 2 T^{3} - 6 T^{2} + \cdots + 1)^{2} $ (T^4 + 2T^3 - 6T^2 - 10*T + 1)^2
$5$	$ (T^{2} + 1)^{4} $ (T^2 + 1)^4
$7$	$ T^{8} + 40 T^{6} + \cdots + 121 $ T^8 + 40T^6 + 438T^4 + 1144*T^2 + 121
$11$	$ (T^{4} + 30 T^{2} + 33)^{2} $ (T^4 + 30*T^2 + 33)^2
$13$	$ T^{8} $ T^8
$17$	$ (T^{4} - 2 T^{3} - 18 T^{2} + \cdots + 13)^{2} $ (T^4 - 2T^3 - 18T^2 + 10*T + 13)^2
$19$	$ (T^{4} + 38 T^{2} + 169)^{2} $ (T^4 + 38*T^2 + 169)^2
$23$	$ (T^{4} - 10 T^{3} + \cdots - 299)^{2} $ (T^4 - 10T^3 + 6T^2 + 146*T - 299)^2
$29$	$ (T^{4} - 8 T^{3} - 18 T^{2} + \cdots + 1)^{2} $ (T^4 - 8T^3 - 18T^2 + 40*T + 1)^2
$31$	$ (T^{4} + 32 T^{2} + 64)^{2} $ (T^4 + 32*T^2 + 64)^2
$37$	$ T^{8} + 112 T^{6} + \cdots + 1 $ T^8 + 112T^6 + 2766T^4 + 1552*T^2 + 1
$41$	$ (T^{4} + 14 T^{2} + 1)^{2} $ (T^4 + 14*T^2 + 1)^2
$43$	$ (T^{4} - 2 T^{3} - 18 T^{2} + \cdots + 13)^{2} $ (T^4 - 2T^3 - 18T^2 + 10*T + 13)^2
$47$	$ T^{8} + 208 T^{6} + \cdots + 1763584 $ T^8 + 208T^6 + 14304T^4 + 350464*T^2 + 1763584
$53$	$ (T^{4} + 12 T^{3} + \cdots - 48)^{2} $ (T^4 + 12T^3 + 36T^2 - 48)^2
$59$	$ T^{8} + 84 T^{6} + \cdots + 9 $ T^8 + 84T^6 + 606T^4 + 324*T^2 + 9
$61$	$ (T^{4} - 28 T^{3} + \cdots + 1261)^{2} $ (T^4 - 28T^3 + 258T^2 - 964*T + 1261)^2
$67$	$ T^{8} + 240 T^{6} + \cdots + 7667361 $ T^8 + 240T^6 + 19758T^4 + 662544*T^2 + 7667361
$71$	$ T^{8} + 436 T^{6} + \cdots + 109767529 $ T^8 + 436T^6 + 68478T^4 + 4583524*T^2 + 109767529
$73$	$ T^{8} + 232 T^{6} + \cdots + 2930944 $ T^8 + 232T^6 + 16944T^4 + 404608*T^2 + 2930944
$79$	$ (T^{4} + 8 T^{3} + \cdots + 4432)^{2} $ (T^4 + 8T^3 - 132T^2 - 640*T + 4432)^2
$83$	$ T^{8} + 192 T^{6} + \cdots + 36864 $ T^8 + 192T^6 + 7104T^4 + 73728*T^2 + 36864
$89$	$ T^{8} + 612 T^{6} + \cdots + 78375609 $ T^8 + 612T^6 + 124014T^4 + 8757108*T^2 + 78375609
$97$	$ T^{8} + 184 T^{6} + \cdots + 196249 $ T^8 + 184T^6 + 5718T^4 + 60136*T^2 + 196249
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Classical	Maass
Hilbert	Bianchi

Elliptic curves over $\Q$
Elliptic curves over $\Q(\alpha)$
Genus 2 curves over $\Q$
Higher genus families
Abelian varieties over $\F_{q}$
Belyi maps

Level:	\( N \)	\(=\)	\( 845 = 5 \cdot 13^{2} \)
Weight:	\( k \)	\(=\)	\( 2 \)
Character orbit:	\([\chi]\)	\(=\)	845.c (of order \(2\), degree \(1\), not minimal)

\(f(q)\)	\(=\)	\( q + \beta_1 q^{2} + ( - \beta_{3} - 1) q^{3} + (\beta_{5} + \beta_{2} - 1) q^{4} + \beta_{6} q^{5} + ( - \beta_{7} + \beta_{6} + \cdots - \beta_1) q^{6} + ( - \beta_{7} + 2 \beta_{6} - \beta_{4}) q^{7}+ \cdots + (4 \beta_{6} - 2 \beta_{4} - 2 \beta_1) q^{99}+O(q^{100}) \) q + b1 * q^2 + (-b3 - 1) * q^3 + (b5 + b2 - 1) * q^4 + b6 * q^5 + (-b7 + b6 + b4 - b1) * q^6 + (-b7 + 2b6 - b4) q^7 + (-b7 + 2b6 + b4) q^8 + (-2b2 + 2) q^9 + (-b2 + 1) * q^10 + (-b7 - 2b6 - 2b4 - 2b1) q^11 + (-2b5 - 3b2 + 4) * q^12 + (b5 - 3b2 + 2) q^14 + (-b6 - b4) * q^15 + (b5 + 2b3 - b2 + 2) q^16 + (2b5 + b3 + 1) q^17 + (2b7 - 4b6 + 2b1) q^18 + (b7 - 4b6) q^19 + (b7 + b1) * q^20 + (b7 - 2b4) q^21 + (-b3 - b2 + 3) * q^22 + (-b3 + 2b2 + 1) q^23 + (b7 - 4b6 + 4b1) * q^24 - q^25 + (2b5 + b3 + 2b2 - 1) * q^27 + (b7 - 2b6 - b4 + b1) q^28 + (-2b5 - 2b2 + 3) * q^29 + (b5 - b3 + b2 - 2) * q^30 + (-2b7 - 2b6) * q^31 + (b7 + b4 + b1) * q^32 + (3b7 + 4b6 - b4) * q^33 + (b7 - b6 + b4 - b1) * q^34 + (b5 + b3 - 2) * q^35 + (2b5 - 2b3 + 4b2 - 8) q^36 + (b7 + 2b6 + 3b4 + 2b1) q^37 + (-b3 + 5b2 - 5) q^38 + (b5 - b3 - 2) * q^40 + (-b7 - 2b6) q^41 + (2b5 - 3b3 + b2 - 3) * q^42 + (2b5 + b3 + 1) q^43 + (-2b7 - 5b6 - 3b4 - b1) q^44 - 2b1 q^45 + (-3b7 + 5b6 + b4 + b1) * q^46 + (2b7 + 4b6 + 4b1) q^47 + (-b3 + 3b2 - 9) q^48 + (4b5 + 4b3 - 2b2) q^49 - b1 * q^50 + (-2b5 - 2b3 - 2b2 - 1) q^51 + (2b2 - 4) q^53 + (-b7 + 3b6 + b4 - 3b1) * q^54 + (b5 + 2b3 + 2b2) * q^55 + (4b5 - 2b3 - 2b2 - 3) q^56 + (-b7 + 4b6 + 3b4 - 2b1) q^57 + (2b7 - 4b6 - 2b4 + 5b1) * q^58 + (-b7 + 4b6 + 2b1) * q^59 + (-2b7 + b6 - 3b1) * q^60 + (2b5 + 2b3 + 2b2 + 7) q^61 + 2b3 q^62 + (2b7 - 2b6 - 6b1) q^63 + (2b5 + 4b3 + 1) * q^64 + (b5 - 4b3 - b2) q^66 + (-b7 - 8b6 - b4) q^67 + (2b5 + 2b3 + b2 + 4) * q^68 + (-2b5 - 2b3 - 4b2 + 5) q^69 + (b7 - b6 - 3b1) q^70 + (-3b7 - 4b6 - 6b4) q^71 + (-2b7 + 2b6 + 4b4 - 6b1) * q^72 + (-4b7 - 2b6 - 2b4 + 2b1) * q^73 + (-b5 + 2b3 + b2 - 2) q^74 + (b3 + 1) * q^75 + (-4b7 + 3b6 + b4 - 5b1) q^76 + (-2b5 + 3b3 + 4b2 - 5) q^77 + (2b3 + 6b2 - 4) * q^79 + (b7 + b6 + 2b4 - b1) q^80 + (-4b5 + 2b2 - 3) * q^81 + (b3 + b2 - 1) * q^82 + (2b7 + 2b6 - 2b4) q^83 + (-2b7 + 5b6 + b4 - 5b1) q^84 + (2b7 + b6 + b4) q^85 + (b7 - b6 + b4 - b1) * q^86 + (4b5 - b3 + 6b2 - 9) * q^87 + (2b5 - 3b3 + 3) * q^88 + (-b7 + 2b6 + 2b4 + 8b1) q^89 + (-2b5 - 2b2 + 6) * q^90 + (2b3 - 3b2 + 8) * q^92 + (2b7 + 2b6 + 4b4 + 4b1) * q^93 + (4b5 - 2b3 + 2b2 - 10) q^94 + (-b5 + 4) * q^95 + (-2b7 - b6 + b4 - b1) q^96 + (-b7 + 2b6 + 3b4 + 2b1) q^97 + (6b7 - 8b6 - 4b1) q^98 + (4b6 - 2b4 - 2b1) q^99
\(\operatorname{Tr}(f)(q)\)	\(=\)	\( 8 q - 4 q^{3} - 4 q^{4} + 8 q^{9} + 4 q^{10} + 20 q^{12} + 4 q^{14} + 4 q^{16} + 4 q^{17} + 24 q^{22} + 20 q^{23} - 8 q^{25} - 4 q^{27} + 16 q^{29} - 8 q^{30} - 20 q^{35} - 40 q^{36} - 16 q^{38} - 12 q^{40}+ \cdots + 32 q^{95}+O(q^{100}) \) 8 * q - 4 * q^3 - 4 * q^4 + 8 * q^9 + 4 * q^10 + 20 * q^12 + 4 * q^14 + 4 * q^16 + 4 * q^17 + 24 * q^22 + 20 * q^23 - 8 * q^25 - 4 * q^27 + 16 * q^29 - 8 * q^30 - 20 * q^35 - 40 * q^36 - 16 * q^38 - 12 * q^40 - 8 * q^42 + 4 * q^43 - 56 * q^48 - 24 * q^49 - 8 * q^51 - 24 * q^53 - 24 * q^56 + 56 * q^61 - 8 * q^62 - 8 * q^64 + 12 * q^66 + 28 * q^68 + 32 * q^69 - 20 * q^74 + 4 * q^75 - 36 * q^77 - 16 * q^79 - 16 * q^81 - 8 * q^82 - 44 * q^87 + 36 * q^88 + 40 * q^90 + 44 * q^92 - 64 * q^94 + 32 * q^95

Introduction

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Modular forms

Varieties

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Database

Properties

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Newspace parameters

Newform invariants

$q$-expansion

Character values

Embeddings

Inner twists

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Hecke kernels

Hecke characteristic polynomials

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	845.2.c.g

Level	$845$
Weight	$2$
Character orbit	845.c
Analytic conductor	$6.747$
Analytic rank	$0$
Dimension	$8$
Inner twists	$2$

Self dual:	no
Analytic conductor:	\(6.74735897080\)
Analytic rank:	\(0\)
Dimension:	\(8\)
Coefficient field:	8.0.22581504.2
comment: defining polynomial gp: f.mod \\ as an extension of the character field
Defining polynomial:	\( x^{8} - 4x^{7} + 5x^{6} + 2x^{5} - 11x^{4} + 4x^{3} + 20x^{2} - 32x + 16 \) x^8 - 4x^7 + 5x^6 + 2x^5 - 11x^4 + 4x^3 + 20x^2 - 32*x + 16
Coefficient ring:	\(\Z[a_1, a_2, a_3]\)
Coefficient ring index:	\( 2^{4} \)
Twist minimal:	no (minimal twist has level 65)
Sato-Tate group:	$\mathrm{SU}(2)[C_{2}]$

\(\beta_{1}\)	\(=\)	\( ( -\nu^{7} + 4\nu^{6} - 5\nu^{5} - 2\nu^{4} + 11\nu^{3} - 4\nu^{2} - 28\nu + 32 ) / 8 \) (-v^7 + 4v^6 - 5v^5 - 2v^4 + 11v^3 - 4v^2 - 28v + 32) / 8
\(\beta_{2}\)	\(=\)	\( ( \nu^{7} - 2\nu^{6} - \nu^{5} + 4\nu^{4} - \nu^{3} - 6\nu^{2} + 10\nu ) / 4 \) (v^7 - 2v^6 - v^5 + 4v^4 - v^3 - 6v^2 + 10v) / 4
\(\beta_{3}\)	\(=\)	\( ( -3\nu^{7} + 8\nu^{6} - 3\nu^{5} - 10\nu^{4} + 13\nu^{3} + 8\nu^{2} - 32\nu + 24 ) / 8 \) (-3v^7 + 8v^6 - 3v^5 - 10v^4 + 13v^3 + 8v^2 - 32*v + 24) / 8
\(\beta_{4}\)	\(=\)	\( ( -5\nu^{7} + 12\nu^{6} - 5\nu^{5} - 18\nu^{4} + 19\nu^{3} + 28\nu^{2} - 64\nu + 40 ) / 8 \) (-5v^7 + 12v^6 - 5v^5 - 18v^4 + 19v^3 + 28v^2 - 64*v + 40) / 8
\(\beta_{5}\)	\(=\)	\( ( -3\nu^{7} + 9\nu^{6} - 5\nu^{5} - 13\nu^{4} + 21\nu^{3} + 13\nu^{2} - 54\nu + 40 ) / 4 \) (-3v^7 + 9v^6 - 5v^5 - 13v^4 + 21v^3 + 13v^2 - 54*v + 40) / 4
\(\beta_{6}\)	\(=\)	\( ( -4\nu^{7} + 11\nu^{6} - 6\nu^{5} - 17\nu^{4} + 24\nu^{3} + 15\nu^{2} - 62\nu + 48 ) / 4 \) (-4v^7 + 11v^6 - 6v^5 - 17v^4 + 24v^3 + 15v^2 - 62*v + 48) / 4
\(\beta_{7}\)	\(=\)	\( ( -3\nu^{7} + 7\nu^{6} - 3\nu^{5} - 11\nu^{4} + 15\nu^{3} + 11\nu^{2} - 40\nu + 30 ) / 2 \) (-3v^7 + 7v^6 - 3v^5 - 11v^4 + 15v^3 + 11v^2 - 40*v + 30) / 2

\(\nu\)	\(=\)	\( ( \beta_{3} + \beta_{2} - \beta _1 + 1 ) / 2 \) (b3 + b2 - b1 + 1) / 2
\(\nu^{2}\)	\(=\)	\( ( -\beta_{6} + \beta_{5} + \beta_{4} + \beta_{2} - \beta _1 + 1 ) / 2 \) (-b6 + b5 + b4 + b2 - b1 + 1) / 2
\(\nu^{3}\)	\(=\)	\( ( \beta_{7} - 2\beta_{6} + 2\beta_{5} - \beta_{4} + \beta_{3} + 2\beta_{2} - 2\beta _1 - 1 ) / 2 \) (b7 - 2b6 + 2b5 - b4 + b3 + 2b2 - 2b1 - 1) / 2
\(\nu^{4}\)	\(=\)	\( ( \beta_{7} - 5\beta_{6} + 3\beta_{5} + \beta_{4} + 2\beta_{3} + \beta_{2} + \beta_1 ) / 2 \) (b7 - 5b6 + 3b5 + b4 + 2*b3 + b2 + b1) / 2
\(\nu^{5}\)	\(=\)	\( ( \beta_{7} - 4\beta_{6} + 4\beta_{5} - 3\beta_{4} + 2\beta_{3} - 3\beta_{2} - \beta _1 + 6 ) / 2 \) (b7 - 4b6 + 4b5 - 3b4 + 2b3 - 3*b2 - b1 + 6) / 2
\(\nu^{6}\)	\(=\)	\( ( -3\beta_{7} - 2\beta_{6} + 4\beta_{5} + 8\beta_{3} - 2\beta_{2} + 5 ) / 2 \) (-3b7 - 2b6 + 4b5 + 8b3 - 2*b2 + 5) / 2
\(\nu^{7}\)	\(=\)	\( ( -8\beta_{7} + 4\beta_{6} + 8\beta_{5} - 2\beta_{4} + \beta_{3} - 5\beta_{2} - 3\beta _1 + 11 ) / 2 \) (-8b7 + 4b6 + 8b5 - 2b4 + b3 - 5b2 - 3b1 + 11) / 2

\(n\):		e.g. 2-40 or 990-1000
Embeddings:		e.g. 1-3 or 506.8
Significant digits:
Format:

$p$	$F_p(T)$
$2$	\( T^{8} + 10 T^{6} + \cdots + 1 \) T^8 + 10T^6 + 27T^4 + 22*T^2 + 1
$3$	\( (T^{4} + 2 T^{3} - 6 T^{2} + \cdots + 1)^{2} \) (T^4 + 2T^3 - 6T^2 - 10*T + 1)^2
$5$	\( (T^{2} + 1)^{4} \) (T^2 + 1)^4
$7$	\( T^{8} + 40 T^{6} + \cdots + 121 \) T^8 + 40T^6 + 438T^4 + 1144*T^2 + 121
$11$	\( (T^{4} + 30 T^{2} + 33)^{2} \) (T^4 + 30*T^2 + 33)^2
$13$	\( T^{8} \) T^8
$17$	\( (T^{4} - 2 T^{3} - 18 T^{2} + \cdots + 13)^{2} \) (T^4 - 2T^3 - 18T^2 + 10*T + 13)^2
$19$	\( (T^{4} + 38 T^{2} + 169)^{2} \) (T^4 + 38*T^2 + 169)^2
$23$	\( (T^{4} - 10 T^{3} + \cdots - 299)^{2} \) (T^4 - 10T^3 + 6T^2 + 146*T - 299)^2
$29$	\( (T^{4} - 8 T^{3} - 18 T^{2} + \cdots + 1)^{2} \) (T^4 - 8T^3 - 18T^2 + 40*T + 1)^2
$31$	\( (T^{4} + 32 T^{2} + 64)^{2} \) (T^4 + 32*T^2 + 64)^2
$37$	\( T^{8} + 112 T^{6} + \cdots + 1 \) T^8 + 112T^6 + 2766T^4 + 1552*T^2 + 1
$41$	\( (T^{4} + 14 T^{2} + 1)^{2} \) (T^4 + 14*T^2 + 1)^2
$43$	\( (T^{4} - 2 T^{3} - 18 T^{2} + \cdots + 13)^{2} \) (T^4 - 2T^3 - 18T^2 + 10*T + 13)^2
$47$	\( T^{8} + 208 T^{6} + \cdots + 1763584 \) T^8 + 208T^6 + 14304T^4 + 350464*T^2 + 1763584
$53$	\( (T^{4} + 12 T^{3} + \cdots - 48)^{2} \) (T^4 + 12T^3 + 36T^2 - 48)^2
$59$	\( T^{8} + 84 T^{6} + \cdots + 9 \) T^8 + 84T^6 + 606T^4 + 324*T^2 + 9
$61$	\( (T^{4} - 28 T^{3} + \cdots + 1261)^{2} \) (T^4 - 28T^3 + 258T^2 - 964*T + 1261)^2
$67$	\( T^{8} + 240 T^{6} + \cdots + 7667361 \) T^8 + 240T^6 + 19758T^4 + 662544*T^2 + 7667361
$71$	\( T^{8} + 436 T^{6} + \cdots + 109767529 \) T^8 + 436T^6 + 68478T^4 + 4583524*T^2 + 109767529
$73$	\( T^{8} + 232 T^{6} + \cdots + 2930944 \) T^8 + 232T^6 + 16944T^4 + 404608*T^2 + 2930944
$79$	\( (T^{4} + 8 T^{3} + \cdots + 4432)^{2} \) (T^4 + 8T^3 - 132T^2 - 640*T + 4432)^2
$83$	\( T^{8} + 192 T^{6} + \cdots + 36864 \) T^8 + 192T^6 + 7104T^4 + 73728*T^2 + 36864
$89$	\( T^{8} + 612 T^{6} + \cdots + 78375609 \) T^8 + 612T^6 + 124014T^4 + 8757108*T^2 + 78375609
$97$	\( T^{8} + 184 T^{6} + \cdots + 196249 \) T^8 + 184T^6 + 5718T^4 + 60136*T^2 + 196249
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\(n\)	\(171\)	\(677\)
\(\chi(n)\)	\(-1\)	\(1\)