Properties

Label 666.2.bj.a
Level $666$
Weight $2$
Character orbit 666.bj
Analytic conductor $5.318$
Analytic rank $0$
Dimension $12$
CM no
Inner twists $2$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [666,2,Mod(289,666)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(666, base_ring=CyclotomicField(18))
 
chi = DirichletCharacter(H, H._module([0, 7]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("666.289");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 666 = 2 \cdot 3^{2} \cdot 37 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 666.bj (of order \(18\), degree \(6\), 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: \(5.31803677462\)
Analytic rank: \(0\)
Dimension: \(12\)
Relative dimension: \(2\) over \(\Q(\zeta_{18})\)
Coefficient field: \(\Q(\zeta_{36})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{12} - x^{6} + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2]\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{18}]$

$q$-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 primitive root of unity \(\zeta_{36}\). We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + \zeta_{36} q^{2} + \zeta_{36}^{2} q^{4} + ( - \zeta_{36}^{8} + \cdots - \zeta_{36}^{2}) q^{5}+ \cdots + \zeta_{36}^{3} q^{8}+O(q^{10}) \) Copy content Toggle raw display \( q + \zeta_{36} q^{2} + \zeta_{36}^{2} q^{4} + ( - \zeta_{36}^{8} + \cdots - \zeta_{36}^{2}) q^{5}+ \cdots + ( - \zeta_{36}^{11} + 2 \zeta_{36}^{10} + \cdots - 4) q^{98}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 12 q - 12 q^{7}+O(q^{10}) \) Copy content Toggle raw display \( 12 q - 12 q^{7} + 6 q^{10} - 6 q^{11} - 12 q^{13} + 18 q^{25} - 6 q^{26} - 6 q^{28} + 36 q^{29} - 6 q^{34} + 18 q^{35} - 6 q^{37} - 24 q^{38} - 6 q^{40} - 12 q^{41} + 24 q^{44} + 12 q^{46} - 12 q^{47} - 6 q^{49} + 6 q^{52} - 48 q^{53} - 72 q^{55} + 6 q^{58} - 36 q^{59} + 36 q^{61} + 18 q^{62} + 6 q^{64} + 42 q^{67} - 12 q^{70} + 12 q^{71} + 24 q^{74} - 6 q^{77} + 42 q^{79} + 6 q^{83} + 18 q^{85} + 36 q^{86} + 18 q^{88} + 36 q^{89} - 42 q^{91} + 36 q^{95} + 18 q^{97} - 36 q^{98}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/666\mathbb{Z}\right)^\times\).

\(n\) \(371\) \(631\)
\(\chi(n)\) \(1\) \(\zeta_{36}^{2}\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
289.1
−0.342020 0.939693i
0.342020 + 0.939693i
−0.984808 + 0.173648i
0.984808 0.173648i
−0.642788 0.766044i
0.642788 + 0.766044i
−0.984808 0.173648i
0.984808 + 0.173648i
−0.642788 + 0.766044i
0.642788 0.766044i
−0.342020 + 0.939693i
0.342020 0.939693i
−0.342020 0.939693i 0 −0.766044 + 0.642788i −0.787884 + 0.138925i 0 −0.625565 3.54776i 0.866025 + 0.500000i 0 0.400019 + 0.692853i
289.2 0.342020 + 0.939693i 0 −0.766044 + 0.642788i 4.19936 0.740460i 0 0.504951 + 2.86372i −0.866025 0.500000i 0 2.13207 + 3.69285i
361.1 −0.984808 + 0.173648i 0 0.939693 0.342020i −0.548083 + 0.653180i 0 −1.63445 1.37147i −0.866025 + 0.500000i 0 0.426333 0.738430i
361.2 0.984808 0.173648i 0 0.939693 0.342020i −1.67860 + 2.00048i 0 −0.712846 0.598149i 0.866025 0.500000i 0 −1.30572 + 2.26157i
469.1 −0.642788 0.766044i 0 −0.173648 + 0.984808i −0.131594 0.361551i 0 −4.25967 + 1.55039i 0.866025 0.500000i 0 −0.192377 + 0.333207i
469.2 0.642788 + 0.766044i 0 −0.173648 + 0.984808i −1.05320 2.89364i 0 0.727576 0.264816i −0.866025 + 0.500000i 0 1.53967 2.66679i
559.1 −0.984808 0.173648i 0 0.939693 + 0.342020i −0.548083 0.653180i 0 −1.63445 + 1.37147i −0.866025 0.500000i 0 0.426333 + 0.738430i
559.2 0.984808 + 0.173648i 0 0.939693 + 0.342020i −1.67860 2.00048i 0 −0.712846 + 0.598149i 0.866025 + 0.500000i 0 −1.30572 2.26157i
595.1 −0.642788 + 0.766044i 0 −0.173648 0.984808i −0.131594 + 0.361551i 0 −4.25967 1.55039i 0.866025 + 0.500000i 0 −0.192377 0.333207i
595.2 0.642788 0.766044i 0 −0.173648 0.984808i −1.05320 + 2.89364i 0 0.727576 + 0.264816i −0.866025 0.500000i 0 1.53967 + 2.66679i
613.1 −0.342020 + 0.939693i 0 −0.766044 0.642788i −0.787884 0.138925i 0 −0.625565 + 3.54776i 0.866025 0.500000i 0 0.400019 0.692853i
613.2 0.342020 0.939693i 0 −0.766044 0.642788i 4.19936 + 0.740460i 0 0.504951 2.86372i −0.866025 + 0.500000i 0 2.13207 3.69285i
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 289.2
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
37.h even 18 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 666.2.bj.a 12
3.b odd 2 1 666.2.bj.b yes 12
37.h even 18 1 inner 666.2.bj.a 12
111.n odd 18 1 666.2.bj.b yes 12
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
666.2.bj.a 12 1.a even 1 1 trivial
666.2.bj.a 12 37.h even 18 1 inner
666.2.bj.b yes 12 3.b odd 2 1
666.2.bj.b yes 12 111.n odd 18 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{5}^{12} - 9 T_{5}^{10} - 72 T_{5}^{9} - 72 T_{5}^{8} + 378 T_{5}^{7} + 2286 T_{5}^{6} + 4860 T_{5}^{5} + \cdots + 81 \) acting on \(S_{2}^{\mathrm{new}}(666, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{12} - T^{6} + 1 \) Copy content Toggle raw display
$3$ \( T^{12} \) Copy content Toggle raw display
$5$ \( T^{12} - 9 T^{10} + \cdots + 81 \) Copy content Toggle raw display
$7$ \( T^{12} + 12 T^{11} + \cdots + 5329 \) Copy content Toggle raw display
$11$ \( T^{12} + 6 T^{11} + \cdots + 2653641 \) Copy content Toggle raw display
$13$ \( T^{12} + 12 T^{11} + \cdots + 12321 \) Copy content Toggle raw display
$17$ \( T^{12} - 18 T^{10} + \cdots + 17665209 \) Copy content Toggle raw display
$19$ \( T^{12} - 9 T^{10} + \cdots + 431649 \) Copy content Toggle raw display
$23$ \( T^{12} + \cdots + 212838921 \) Copy content Toggle raw display
$29$ \( T^{12} + \cdots + 121154049 \) Copy content Toggle raw display
$31$ \( T^{12} + 210 T^{10} + \cdots + 25796241 \) Copy content Toggle raw display
$37$ \( T^{12} + \cdots + 2565726409 \) Copy content Toggle raw display
$41$ \( T^{12} + \cdots + 1768034304 \) Copy content Toggle raw display
$43$ \( T^{12} + \cdots + 504496521 \) Copy content Toggle raw display
$47$ \( T^{12} + \cdots + 13231670841 \) Copy content Toggle raw display
$53$ \( T^{12} + \cdots + 1998358209 \) Copy content Toggle raw display
$59$ \( T^{12} + 36 T^{11} + \cdots + 927369 \) Copy content Toggle raw display
$61$ \( T^{12} - 36 T^{11} + \cdots + 46416969 \) Copy content Toggle raw display
$67$ \( T^{12} + \cdots + 254306809 \) Copy content Toggle raw display
$71$ \( T^{12} - 12 T^{11} + \cdots + 331776 \) Copy content Toggle raw display
$73$ \( (T^{6} - 96 T^{4} + \cdots + 11584)^{2} \) Copy content Toggle raw display
$79$ \( T^{12} + \cdots + 359276763609 \) Copy content Toggle raw display
$83$ \( T^{12} - 6 T^{11} + \cdots + 110889 \) Copy content Toggle raw display
$89$ \( T^{12} + \cdots + 86755578849 \) Copy content Toggle raw display
$97$ \( T^{12} + \cdots + 241771401 \) Copy content Toggle raw display
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