LMFDB - Newform orbit 201.1.k.a

Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms

[N,k,chi] = [201,1,Mod(14,201)]

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

lf = mfeigenbasis(mf)

from sage.modular.dirichlet import DirichletCharacter

H = DirichletGroup(201, base_ring=CyclotomicField(22))

chi = DirichletCharacter(H, H._module([11, 8]))

N = Newforms(chi, 1, names="a")

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

chi := DirichletCharacter("201.14");

S:= CuspForms(chi, 1);

N := Newforms(S);

Level:	$N$	$=$	$201 = 3 \cdot 67$
Weight:	$k$	$=$	$1$
Character orbit:	$[\chi]$	$=$	201.k (of order $22$ , degree $10$ , 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:	$0.100312067539$
Analytic rank:	$0$
Dimension:	$10$
Coefficient field:	$\Q(\zeta_{22})$
comment: defining polynomial gp: f.mod \\ as an extension of the character field
Defining polynomial:	$x^{10} - x^{9} + x^{8} - x^{7} + x^{6} - x^{5} + x^{4} - x^{3} + x^{2} - x + 1$ x^10 - x^9 + x^8 - x^7 + x^6 - x^5 + x^4 - x^3 + x^2 - x + 1
Coefficient ring:	$\Z[a_1, a_2, a_3]$
Coefficient ring index:	$1$
Twist minimal:	yes
Projective image:	$D_{11}$
Projective field:	Galois closure of $\mathbb{Q}[x]/(x^{11} - \cdots)$

$q$ -expansion

comment: q-expansion

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

gp: mfcoefs(f, 20)

The $q$ -expansion and trace form are shown below.

$f(q)$	$=$	$q - \zeta_{22}^{7} q^{3} + \zeta_{22}^{6} q^{4} + ( - \zeta_{22}^{9} + \zeta_{22}^{8}) q^{7} - \zeta_{22}^{3} q^{9} + \zeta_{22}^{2} q^{12} + (\zeta_{22}^{10} - \zeta_{22}^{5}) q^{13} - \zeta_{22} q^{16} + \cdots + ( - \zeta_{22}^{7} + \zeta_{22}^{4}) q^{97} +O(q^{100})$ q - z^7 * q^3 + z^6 * q^4 + (-z^9 + z^8) * q^7 - z^3 * q^9 + z^2 * q^12 + (z^10 - z^5) * q^13 - z * q^16 + (z^4 - z) * q^19 + (-z^5 + z^4) * q^21 + z^2 * q^25 + z^10 * q^27 + (z^4 - z^3) * q^28 + (z^10 + z^8) * q^31 - z^9 * q^36 + (-z^9 + z^2) * q^37 + (z^6 - z) * q^39 + (-z^7 - z^3) * q^43 + z^8 * q^48 + (-z^7 + z^6 - z^5) * q^49 + (-z^5 + 1) * q^52 + (z^8 + 1) * q^57 + (z^6 - z^3) * q^61 + (-z + 1) * q^63 - z^7 * q^64 + z^2 * q^67 + (-z^9 + 1) * q^73 - z^9 * q^75 + (z^10 - z^7) * q^76 + (z^4 + 1) * q^79 + z^6 * q^81 + (z^10 + 1) * q^84 + (z^8 - z^7 - z^3 + z^2) * q^91 + (z^6 + z^4) * q^93 + (-z^7 + z^4) * q^97
$\operatorname{Tr}(f)(q)$	$=$	$10 q - q^{3} - q^{4} - 2 q^{7} - q^{9} - q^{12} - 2 q^{13} - q^{16} - 2 q^{19} - 2 q^{21} - q^{25} - q^{27} - 2 q^{28} - 2 q^{31} - q^{36} - 2 q^{37} - 2 q^{39} - 2 q^{43} - q^{48} - 3 q^{49} + 9 q^{52}+ \cdots - 2 q^{97}+O(q^{100})$ 10 * q - q^3 - q^4 - 2 * q^7 - q^9 - q^12 - 2 * q^13 - q^16 - 2 * q^19 - 2 * q^21 - q^25 - q^27 - 2 * q^28 - 2 * q^31 - q^36 - 2 * q^37 - 2 * q^39 - 2 * q^43 - q^48 - 3 * q^49 + 9 * q^52 + 9 * q^57 - 2 * q^61 + 9 * q^63 - q^64 - q^67 + 9 * q^73 - q^75 - 2 * q^76 + 9 * q^79 - q^81 + 9 * q^84 - 4 * q^91 - 2 * q^93 - 2 * q^97

Character values

We give the values of $\chi$ on generators for $\left(\mathbb{Z}/201\mathbb{Z}\right)^\times$ .

$n$	$68$	$136$
$\chi(n)$	$-1$	$\zeta_{22}^{6}$

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}

14.1

0.142315	+	0.989821i
−0.841254	−	0.540641i
0.959493	−	0.281733i
−0.415415	+	0.909632i
−0.841254	+	0.540641i
0.959493	+	0.281733i
−0.415415	−	0.909632i
0.654861	−	0.755750i
0.654861	+	0.755750i
0.142315	−	0.989821i

0.841254

0.540641i

−0.654861

0.755750i

−0.544078

−

1.19136i

0.415415

0.909632i

59.1

−0.654861

−

0.755750i

−0.959493

−

0.281733i

0.273100

−

1.89945i

−0.142315

0.989821i

62.1

0.415415

0.909632i

−0.142315

−

0.989821i

0.186393

−

0.215109i

−0.654861

0.755750i

89.1

−0.142315

−

0.989821i

0.841254

−

0.540641i

−1.61435

0.474017i

−0.959493

0.281733i

92.1

−0.654861

0.755750i

−0.959493

0.281733i

0.273100

1.89945i

−0.142315

−

0.989821i

107.1

0.415415

−

0.909632i

−0.142315

0.989821i

0.186393

0.215109i

−0.654861

−

0.755750i

131.1

−0.142315

0.989821i

0.841254

0.540641i

−1.61435

−

0.474017i

−0.959493

−

0.281733i

143.1

−0.959493

−

0.281733i

0.415415

0.909632i

0.698939

0.449181i

0.841254

0.540641i

149.1

−0.959493

0.281733i

0.415415

−

0.909632i

0.698939

−

0.449181i

0.841254

−

0.540641i

158.1

0.841254

−

0.540641i

−0.654861

−

0.755750i

−0.544078

1.19136i

0.415415

−

0.909632i

Inner twists

Char	Parity	Ord	Mult	Type
1.a	even	1	1	trivial
3.b	odd	2	1	CM by $\Q(\sqrt{-3})$
67.e	even	11	1	inner
201.k	odd	22	1	inner

Twists

By twisting character orbit
Char	Parity	Ord	Mult	Type	Twist	Min	Dim
1.a	even	1	1	trivial	201.1.k.a	✓	10
3.b	odd	2	1	CM	201.1.k.a	✓	10
4.b	odd	2	1		3216.1.cg.a		10
12.b	even	2	1		3216.1.cg.a		10
67.e	even	11	1	inner	201.1.k.a	✓	10
201.k	odd	22	1	inner	201.1.k.a	✓	10
268.k	odd	22	1		3216.1.cg.a		10
804.w	even	22	1		3216.1.cg.a		10

By twisted newform orbit
Twist	Min	Dim	Char	Parity	Ord	Mult	Type
201.1.k.a	✓	10	1.a	even	1	1	trivial
201.1.k.a	✓	10	3.b	odd	2	1	CM
201.1.k.a	✓	10	67.e	even	11	1	inner
201.1.k.a	✓	10	201.k	odd	22	1	inner
3216.1.cg.a		10	4.b	odd	2	1
3216.1.cg.a		10	12.b	even	2	1
3216.1.cg.a		10	268.k	odd	22	1
3216.1.cg.a		10	804.w	even	22	1

Hecke kernels

This newform subspace is the entire newspace $S_{1}^{\mathrm{new}}(201, [\chi])$ .

Hecke characteristic polynomials

$p$	$F_p(T)$
$2$	$T^{10}$ T^10
$3$	$T^{10} + T^{9} + \cdots + 1$ T^10 + T^9 + T^8 + T^7 + T^6 + T^5 + T^4 + T^3 + T^2 + T + 1
$5$	$T^{10}$ T^10
$7$	$T^{10} + 2 T^{9} + \cdots + 1$ T^10 + 2T^9 + 4T^8 + 8T^7 + 5T^6 - T^5 - 2T^4 - 4T^3 + 14T^2 - 5T + 1
$11$	$T^{10}$ T^10
$13$	$T^{10} + 2 T^{9} + \cdots + 1$ T^10 + 2T^9 + 4T^8 + 8T^7 + 16T^6 + 32T^5 + 53T^4 + 51T^3 + 25T^2 + 6*T + 1
$17$	$T^{10}$ T^10
$19$	$T^{10} + 2 T^{9} + \cdots + 1$ T^10 + 2T^9 + 4T^8 + 8T^7 + 16T^6 + 10T^5 + 20T^4 + 7T^3 + 3T^2 - 5*T + 1
$23$	$T^{10}$ T^10
$29$	$T^{10}$ T^10
$31$	$T^{10} + 2 T^{9} + \cdots + 1$ T^10 + 2T^9 + 4T^8 + 8T^7 + 16T^6 + 10T^5 + 20T^4 + 7T^3 + 3T^2 - 5*T + 1
$37$	$(T^{5} + T^{4} - 4 T^{3} + \cdots + 1)^{2}$ (T^5 + T^4 - 4T^3 - 3T^2 + 3*T + 1)^2
$41$	$T^{10}$ T^10
$43$	$T^{10} + 2 T^{9} + \cdots + 1$ T^10 + 2T^9 + 4T^8 + 8T^7 + 16T^6 + 32T^5 + 53T^4 + 51T^3 + 25T^2 + 6*T + 1
$47$	$T^{10}$ T^10
$53$	$T^{10}$ T^10
$59$	$T^{10}$ T^10
$61$	$T^{10} + 2 T^{9} + \cdots + 1$ T^10 + 2T^9 + 4T^8 + 8T^7 + 16T^6 + 32T^5 + 53T^4 + 51T^3 + 25T^2 + 6*T + 1
$67$	$T^{10} + T^{9} + \cdots + 1$ T^10 + T^9 + T^8 + T^7 + T^6 + T^5 + T^4 + T^3 + T^2 + T + 1
$71$	$T^{10}$ T^10
$73$	$T^{10} - 9 T^{9} + \cdots + 1$ T^10 - 9T^9 + 37T^8 - 91T^7 + 148T^6 - 166T^5 + 130T^4 - 70T^3 + 25T^2 - 5*T + 1
$79$	$T^{10} - 9 T^{9} + \cdots + 1$ T^10 - 9T^9 + 37T^8 - 91T^7 + 148T^6 - 166T^5 + 130T^4 - 70T^3 + 25T^2 - 5*T + 1
$83$	$T^{10}$ T^10
$89$	$T^{10}$ T^10
$97$	$(T^{5} + T^{4} - 4 T^{3} + \cdots + 1)^{2}$ (T^5 + T^4 - 4T^3 - 3T^2 + 3*T + 1)^2
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Elliptic curves over $\Q$
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$n$ :		e.g. 2-40 or 990-1000
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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	201.1.k.a

Level	$201$
Weight	$1$
Character orbit	201.k
Analytic conductor	$0.100$
Analytic rank	$0$
Dimension	$10$
Projective image	$D_{11}$
CM discriminant	-3
Inner twists	$4$