LMFDB - Newform orbit 136.2.c.b

Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms

[N,k,chi] = [136,2,Mod(69,136)]

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

lf = mfeigenbasis(mf)

from sage.modular.dirichlet import DirichletCharacter

H = DirichletGroup(136, base_ring=CyclotomicField(2))

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

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

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

chi := DirichletCharacter("136.69");

S:= CuspForms(chi, 2);

N := Newforms(S);

Level:	$N$	$=$	$136 = 2^{3} \cdot 17$
Weight:	$k$	$=$	$2$
Character orbit:	$[\chi]$	$=$	136.c (of order $2$ , degree $1$ , 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:	$1.08596546749$
Analytic rank:	$0$
Dimension:	$8$
Coefficient field:	8.0.4469724736.1
comment: defining polynomial gp: f.mod \\ as an extension of the character field
Defining polynomial:	$x^{8} - x^{7} + 2x^{5} - 4x^{4} + 4x^{3} - 8x + 16$ x^8 - x^7 + 2x^5 - 4x^4 + 4x^3 - 8x + 16
Coefficient ring:	$\Z[a_1, a_2, a_3]$
Coefficient ring index:	$2^{2}$
Twist minimal:	yes
Sato-Tate group:	$\mathrm{SU}(2)[C_{2}]$

Character values

We give the values of $\chi$ on generators for $\left(\mathbb{Z}/136\mathbb{Z}\right)^\times$ .

$n$	$69$	$103$	$105$
$\chi(n)$	$-1$	$1$	$1$

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}

69.1

1.33209	+	0.474920i
1.33209	−	0.474920i
0.733159	+	1.20933i
0.733159	−	1.20933i
−0.185533	+	1.40199i
−0.185533	−	1.40199i
−1.37971	+	0.310478i
−1.37971	−	0.310478i

−1.33209

−

0.474920i

2.10562i

1.54890

1.26527i

1.58069i

1.00000

−

2.80487i

−5.01127

−1.46237

−

2.42105i

−1.43364

0.750703

−

2.10562i

69.2

−1.33209

0.474920i

−

2.10562i

1.54890

−

1.26527i

−

1.58069i

1.00000

2.80487i

−5.01127

−1.46237

2.42105i

−1.43364

0.750703

2.10562i

69.3

−0.733159

−

1.20933i

0.826905i

−0.924955

1.77326i

1.12786i

1.00000

−

0.606253i

1.74755

2.82260

−

0.181508i

2.31623

1.36396

−

0.826905i

69.4

−0.733159

1.20933i

−

0.826905i

−0.924955

−

1.77326i

−

1.12786i

1.00000

0.606253i

1.74755

2.82260

0.181508i

2.31623

1.36396

0.826905i

69.5

0.185533

−

1.40199i

0.713272i

−1.93115

−

0.520231i

−

3.84444i

1.00000

0.132335i

−1.15650

−1.08765

2.61094i

2.49124

−5.38987

−

0.713272i

69.6

0.185533

1.40199i

−

0.713272i

−1.93115

0.520231i

3.84444i

1.00000

−

0.132335i

−1.15650

−1.08765

−

2.61094i

2.49124

−5.38987

0.713272i

69.7

1.37971

−

0.310478i

3.22084i

1.80721

−

0.856739i

−

2.33443i

1.00000

4.44384i

−1.57978

2.22743

−

1.74315i

−7.37384

−0.724789

−

3.22084i

69.8

1.37971

0.310478i

−

3.22084i

1.80721

0.856739i

2.33443i

1.00000

−

4.44384i

−1.57978

2.22743

1.74315i

−7.37384

−0.724789

3.22084i

Inner twists

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

Twists

By twisting character orbit
Char	Parity	Ord	Mult	Type	Twist	Min	Dim
1.a	even	1	1	trivial	136.2.c.b	✓	8
3.b	odd	2	1		1224.2.f.c		8
4.b	odd	2	1		544.2.c.b		8
8.b	even	2	1	inner	136.2.c.b	✓	8
8.d	odd	2	1		544.2.c.b		8
12.b	even	2	1		4896.2.f.d		8
16.e	even	4	2		4352.2.a.bf		8
16.f	odd	4	2		4352.2.a.bb		8
24.f	even	2	1		4896.2.f.d		8
24.h	odd	2	1		1224.2.f.c		8

By twisted newform orbit
Twist	Min	Dim	Char	Parity	Ord	Mult	Type
136.2.c.b	✓	8	1.a	even	1	1	trivial
136.2.c.b	✓	8	8.b	even	2	1	inner
544.2.c.b		8	4.b	odd	2	1
544.2.c.b		8	8.d	odd	2	1
1224.2.f.c		8	3.b	odd	2	1
1224.2.f.c		8	24.h	odd	2	1
4352.2.a.bb		8	16.f	odd	4	2
4352.2.a.bf		8	16.e	even	4	2
4896.2.f.d		8	12.b	even	2	1
4896.2.f.d		8	24.f	even	2	1

This newform subspace can be constructed as the kernel of the linear operator $T_{3}^{8} + 16T_{3}^{6} + 64T_{3}^{4} + 60T_{3}^{2} + 16$ T3^8 + 16*T3^6 + 64*T3^4 + 60*T3^2 + 16 acting on $S_{2}^{\mathrm{new}}(136, [\chi])$ .

Hecke characteristic polynomials

$p$	$F_p(T)$
$2$	$T^{8} + T^{7} + \cdots + 16$ T^8 + T^7 - 2T^5 - 4T^4 - 4T^3 + 8T + 16
$3$	$T^{8} + 16 T^{6} + \cdots + 16$ T^8 + 16T^6 + 64T^4 + 60*T^2 + 16
$5$	$T^{8} + 24 T^{6} + \cdots + 256$ T^8 + 24T^6 + 160T^4 + 368*T^2 + 256
$7$	$(T^{4} + 6 T^{3} + 2 T^{2} + \cdots - 16)^{2}$ (T^4 + 6T^3 + 2T^2 - 18*T - 16)^2
$11$	$T^{8} + 44 T^{6} + \cdots + 5776$ T^8 + 44T^6 + 584T^4 + 3100*T^2 + 5776
$13$	$T^{8} + 52 T^{6} + \cdots + 256$ T^8 + 52T^6 + 496T^4 + 880*T^2 + 256
$17$	$(T - 1)^{8}$ (T - 1)^8
$19$	$T^{8} + 80 T^{6} + \cdots + 6400$ T^8 + 80T^6 + 1504T^4 + 7424*T^2 + 6400
$23$	$(T^{4} + 8 T^{3} + \cdots + 944)^{2}$ (T^4 + 8T^3 - 50T^2 - 278*T + 944)^2
$29$	$T^{8} + 24 T^{6} + \cdots + 256$ T^8 + 24T^6 + 160T^4 + 368*T^2 + 256
$31$	$(T^{4} - 12 T^{3} + \cdots - 160)^{2}$ (T^4 - 12T^3 + 18T^2 + 94*T - 160)^2
$37$	$T^{8} + 160 T^{6} + \cdots + 160000$ T^8 + 160T^6 + 7888T^4 + 127600*T^2 + 160000
$41$	$(T^{4} - 56 T^{2} + \cdots - 80)^{2}$ (T^4 - 56T^2 - 176T - 80)^2
$43$	$T^{8} + 188 T^{6} + \cdots + 102400$ T^8 + 188T^6 + 7552T^4 + 60416*T^2 + 102400
$47$	$(T^{4} - 2 T^{3} + \cdots + 3200)^{2}$ (T^4 - 2T^3 - 124T^2 + 200*T + 3200)^2
$53$	$T^{8} + 112 T^{6} + \cdots + 102400$ T^8 + 112T^6 + 3904T^4 + 43776*T^2 + 102400
$59$	$T^{8} + 300 T^{6} + \cdots + 10240000$ T^8 + 300T^6 + 29632T^4 + 1049600*T^2 + 10240000
$61$	$T^{8} + 24 T^{6} + \cdots + 256$ T^8 + 24T^6 + 160T^4 + 368*T^2 + 256
$67$	$T^{8} + 112 T^{6} + \cdots + 6400$ T^8 + 112T^6 + 1568T^4 + 6656*T^2 + 6400
$71$	$(T^{4} + 18 T^{3} + \cdots - 400)^{2}$ (T^4 + 18T^3 + 54T^2 - 106*T - 400)^2
$73$	$(T^{4} - 4 T^{3} + \cdots + 304)^{2}$ (T^4 - 4T^3 - 96T^2 - 80*T + 304)^2
$79$	$(T^{4} - 12 T^{3} + \cdots - 128)^{2}$ (T^4 - 12T^3 - 2T^2 + 166*T - 128)^2
$83$	$T^{8} + 316 T^{6} + \cdots + 36966400$ T^8 + 316T^6 + 37120T^4 + 1921024*T^2 + 36966400
$89$	$(T^{4} - 4 T^{3} + \cdots - 2456)^{2}$ (T^4 - 4T^3 - 284T^2 + 2108*T - 2456)^2
$97$	$(T^{4} + 4 T^{3} + \cdots - 688)^{2}$ (T^4 + 4T^3 - 112T^2 - 736*T - 688)^2
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Elliptic curves over $\Q$
Elliptic curves over $\Q(\alpha)$
Genus 2 curves over $\Q$
Higher genus families
Abelian varieties over $\F_{q}$

$f(q)$	$=$	$q - \beta_1 q^{2} + (\beta_{6} + \beta_1) q^{3} + \beta_{2} q^{4} + (\beta_{7} + \beta_{2} - \beta_1) q^{5} + ( - \beta_{7} + \beta_{3} - \beta_{2} + 1) q^{6} + ( - \beta_{4} - \beta_{2} - 1) q^{7} + ( - \beta_{7} - \beta_{6} - \beta_{4} + \cdots + 1) q^{8}+ \cdots + (4 \beta_{7} - \beta_{6} + \cdots - \beta_1) q^{99}+O(q^{100})$ q - b1 * q^2 + (b6 + b1) * q^3 + b2 * q^4 + (b7 + b2 - b1) * q^5 + (-b7 + b3 - b2 + 1) * q^6 + (-b4 - b2 - 1) * q^7 + (-b7 - b6 - b4 - b2 + 1) * q^8 + (b7 - b2 + b1 - 1) * q^9 + (-b7 - 2b6 + b5 - b4 + b3 - b1 - 1) q^10 + (-b5 + b3) * q^11 + 2b6 q^12 + (b7 + b6 + b5 - b3 + b2) * q^13 + (b5 + b4 + b2 + b1) * q^14 + (b6 - b5 - b3 - b1 + 2) * q^15 + (b7 + b6 + b4 - 2b3 + b2 + 1) q^16 + q^17 + (b7 + b5 + b4 + b3 - 3) * q^18 + (-2b3 + 2b1) * q^19 + (-2b3 + 2b1 - 2) * q^20 + (-b7 - 3b6 - b5 + b3 - b2 - 2b1) * q^21 + (-b7 + 2b5 - 2b4 + b3 - b2 + 1) * q^22 + (2b7 + b6 - b5 + 3b4 - b3 + b2 + b1 - 3) * q^23 + (-2b7 + 2b3 + 2) * q^24 + (-2b7 - 2b6 + 2b5 - 2b4 + 2b3 - 1) q^25 + (-b7 - 2b6 - b5 + b4 + b3 - b1 - 1) q^26 + (2b7 - b6 - b5 - 3b3 + 2b2 + b1) q^27 + (-2b5 - 2b2 - 2) * q^28 + (-b7 - b2 + b1) * q^29 + (2b2 - 2b1 + 4) * q^30 + (b6 - b5 + b4 - b3 + b2 - b1 + 3) * q^31 + (b7 - b6 - 2b5 + b4 + b2 - 2b1 + 1) * q^32 + (b7 + 2b4 + b2 + b1 - 2) q^33 - b1 * q^34 + (-2b7 - b6 - b5 + b3 - 2b2 + b1) * q^35 + (2b3 - b2 + 2b1 - 6) * q^36 + (-b7 + 2b5 + 2b3 - b2 - 3b1) q^37 + (2b7 - 2b5 + 2b4 - 2b3 + 2) * q^38 + (b6 - b5 - 2b4 - b3 - 2b2 - b1) * q^39 + (2b7 - 2b5 + 2b4 - 2b3 + 2b1 + 2) q^40 + (2b7 + 2b6 - 2b5 + 2b4 - 2b3) q^41 + (3b7 + 2b6 + b5 - b4 - 3b3 + 2b2 + b1 - 1) * q^42 + (3b6 + b5 + b3 + b1) q^43 + (-2b7 + 2b4 - 2) * q^44 + (-b7 + 2b6 + 4b3 - b2 - b1) * q^45 + (2b7 - b5 - b4 + 2b3 - b2 + b1 - 2) * q^46 + (-2b7 - 3b6 + 3b5 - 2b4 + 3b3 + b1) q^47 + (-2b7 + 2b6 - 2b4 - 2b2 + 2) * q^48 + (-b7 - 2b6 + 2b5 + 2b4 + 2b3 + 3b2 + b1 - 1) q^49 + (-2b7 - 2b3 - 2b2 + 3b1 - 2) * q^50 + (b6 + b1) * q^51 + (2b7 + 2b6 - 2b4 - 2b3 + 2b1) q^52 + (-2b7 - 2b6 - 2b2) q^53 + (2b7 - 4b6 - 2b3 - 2b1 + 2) * q^54 + (-2b7 - b6 + b5 + b3 + 2b2 - b1 - 2) * q^55 + (2b7 + 2b6 + 2b5 + 2b2 + 2b1 + 2) q^56 + (-2b7 - 2b4 - 2b1 + 2) q^57 + (b7 + 2b6 - b5 + b4 - b3 + b1 + 1) q^58 + (2b7 + b6 + 3b5 - b3 + 2b2 - 3b1) * q^59 + (-2b7 - 2b6 - 2b4 - 4b1 + 2) * q^60 + (-b7 - b2 + b1) * q^61 + (-b5 - b4 + b2 - 3b1 + 4) q^62 + (-2b7 - b6 + b5 - b4 + b3 + b2 - b1 + 5) q^63 + (b7 - b6 + 2b5 - 3b4 + b2 - 2b1 + 1) q^64 + (-2b4 - 2b2 - 2) * q^65 + (b7 - b5 - b4 + b3 - 2b2 + b1 - 3) q^66 + (-2b7 - 2b6 + 2b3 - 2b2 - 2b1) q^67 + b2 * q^68 + (3b7 - 3b6 + b5 - 5b3 + 3b2 - 2b1) q^69 + (2b7 + 4b6 - 2b3 + 2b1 + 2) * q^70 + (-2b7 - 2b6 + 2b5 - b4 + 2b3 + b2 - 5) * q^71 + (-b7 + b6 + 2b5 - b4 + 2b3 - 3b2 + 6b1 - 3) * q^72 + (-2b7 - 2b6 + 2b5 - 4b4 + 2b3 - 2b2 + 2) * q^73 + (-b7 + 2b6 - b5 + b4 + b3 + 2b2 + b1 - 5) * q^74 + (2b7 + b6 + 2b2 - b1) * q^75 + (4b7 + 2b2 - 4b1) q^76 + (3b7 + 3b6 - b5 - 3b3 + 3b2 + 4b1) q^77 + (2b5 + 2b4 + 4b2 + 4) q^78 + (2b7 + b6 - b5 + b4 - b3 - b2 + b1 + 3) q^79 + (4b7 - 4b1) * q^80 + (-b7 + 2b6 - 2b5 - 2b4 - 2b3 - b2 - 3b1 + 7) q^81 + (2b7 + 2b3 + 2b2 - 2b1 + 2) * q^82 + (-4b7 - b6 + b5 + b3 - 4b2 + b1) * q^83 + (-2b7 - 6b6 + 2b4 + 2b3 - 2b1) q^84 + (b7 + b2 - b1) * q^85 + (-4b7 + 4b3 - 2b2) q^86 + (-b6 + b5 + b3 + b1 - 2) * q^87 + (2b7 + 4b6 - 4b5 - 2b3 + 4b1 + 2) q^88 + (3b7 + 4b6 - 4b5 + 6b4 - 4b3 + 3b2 - b1) * q^89 + (-5b7 + 2b6 + 3b5 - 3b4 + 5b3 - 2b2 + b1 - 1) * q^90 + (-6b7 - 7b6 - b5 + 5b3 - 6b2 - 5b1) q^91 + (-2b7 - 2b6 + 6b5 - 2b4 + 4b3 - 2b2 - 4) * q^92 + (-3b7 + 5b6 + b5 + 3b3 - 3b2 + 4b1) q^93 + (-2b7 - 2b3 - 4b2 + 2b1 - 6) * q^94 + (6b7 + 4b6 - 4b5 + 4b4 - 4b3 - 2b2 + 2b1 + 4) q^95 + (-2b7 + 2b6 + 2b4 + 2b2 + 6) * q^96 + (-2b7 - 2b4 - 2b1) q^97 + (-b7 - 3b5 - 3b4 - b3 - 6b2 + 2b1 - 5) * q^98 + (4b7 - b6 - 2b5 - 2b3 + 4b2 - b1) * q^99
$\operatorname{Tr}(f)(q)$	$=$	$8 q - q^{2} + q^{4} + 8 q^{6} - 12 q^{7} + 5 q^{8} - 8 q^{9} - 8 q^{10} - 2 q^{12} + 6 q^{14} + 12 q^{15} + 9 q^{16} + 8 q^{17} - 19 q^{18} - 16 q^{20} + 4 q^{22} - 16 q^{23} + 18 q^{24} - 8 q^{25} - 4 q^{26}+ \cdots - 57 q^{98}+O(q^{100})$ 8 * q - q^2 + q^4 + 8 * q^6 - 12 * q^7 + 5 * q^8 - 8 * q^9 - 8 * q^10 - 2 * q^12 + 6 * q^14 + 12 * q^15 + 9 * q^16 + 8 * q^17 - 19 * q^18 - 16 * q^20 + 4 * q^22 - 16 * q^23 + 18 * q^24 - 8 * q^25 - 4 * q^26 - 20 * q^28 + 32 * q^30 + 24 * q^31 + 9 * q^32 - 8 * q^33 - q^34 - 45 * q^36 + 18 * q^38 - 12 * q^39 + 20 * q^40 - 12 * q^42 - 10 * q^44 - 18 * q^46 + 4 * q^47 + 6 * q^48 + 8 * q^49 - 17 * q^50 - 8 * q^52 + 16 * q^54 - 12 * q^55 + 20 * q^56 + 8 * q^57 + 8 * q^58 + 8 * q^60 + 26 * q^62 + 40 * q^63 + q^64 - 24 * q^65 - 28 * q^66 + q^68 + 12 * q^70 - 36 * q^71 - 21 * q^72 + 8 * q^73 - 36 * q^74 - 2 * q^76 + 44 * q^78 + 24 * q^79 - 4 * q^80 + 40 * q^81 + 18 * q^82 + 12 * q^84 + 2 * q^86 - 12 * q^87 + 10 * q^88 + 8 * q^89 - 12 * q^90 - 28 * q^92 - 52 * q^94 + 32 * q^95 + 54 * q^96 - 8 * q^97 - 57 * q^98

$\beta_{1}$	$=$	$\nu$ v
$\beta_{2}$	$=$	$\nu^{2}$ v^2
$\beta_{3}$	$=$	$( -\nu^{4} + \nu^{3} + 2 ) / 2$ (-v^4 + v^3 + 2) / 2
$\beta_{4}$	$=$	$( -\nu^{7} - \nu^{6} + 4\nu^{3} - 4\nu^{2} + 8 ) / 8$ (-v^7 - v^6 + 4v^3 - 4v^2 + 8) / 8
$\beta_{5}$	$=$	$( -\nu^{7} + \nu^{6} + 2\nu^{5} + 4\nu^{3} - 4\nu^{2} + 8 ) / 8$ (-v^7 + v^6 + 2v^5 + 4v^3 - 4*v^2 + 8) / 8
$\beta_{6}$	$=$	$( \nu^{7} - \nu^{6} + 2\nu^{5} + 4\nu^{2} - 8\nu ) / 8$ (v^7 - v^6 + 2v^5 + 4v^2 - 8*v) / 8
$\beta_{7}$	$=$	$( \nu^{6} - \nu^{5} + 2\nu^{3} - 4\nu^{2} + 4\nu ) / 4$ (v^6 - v^5 + 2v^3 - 4v^2 + 4*v) / 4

Introduction

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Modular forms

Varieties

Fields

Representations

Groups

Database

Properties

Related objects

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Newspace parameters

Newform invariants

$q$ -expansion

Character values

Embeddings

Inner twists

Twists

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	136.2.c.b

Level	$136$
Weight	$2$
Character orbit	136.c
Analytic conductor	$1.086$
Analytic rank	$0$
Dimension	$8$
Inner twists	$2$

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

$n$ :		e.g. 2-40 or 990-1000
Embeddings:		e.g. 1-3 or 69.8
Significant digits:
Format: