Properties

Label 666.2.x.b
Level $666$
Weight $2$
Character orbit 666.x
Analytic conductor $5.318$
Analytic rank $0$
Dimension $6$
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(127,666)]
 
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, 2]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("666.127");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 666 = 2 \cdot 3^{2} \cdot 37 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 666.x (of order \(9\), 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: \(6\)
Coefficient field: \(\Q(\zeta_{18})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{6} - x^{3} + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 222)
Sato-Tate group: $\mathrm{SU}(2)[C_{9}]$

$q$-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 \(\zeta_{18}\). We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + ( - \zeta_{18}^{4} + \zeta_{18}) q^{2} - \zeta_{18}^{5} q^{4} + (2 \zeta_{18}^{4} - \zeta_{18}^{3} + \cdots - 1) q^{5} + \cdots - \zeta_{18}^{3} q^{8} +O(q^{10}) \) Copy content Toggle raw display \( q + ( - \zeta_{18}^{4} + \zeta_{18}) q^{2} - \zeta_{18}^{5} q^{4} + (2 \zeta_{18}^{4} - \zeta_{18}^{3} + \cdots - 1) q^{5} + \cdots + ( - \zeta_{18}^{5} + 4 \zeta_{18}^{4} + \cdots - 4) q^{98} +O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 6 q - 9 q^{5} + 6 q^{7} - 3 q^{8}+O(q^{10}) \) Copy content Toggle raw display \( 6 q - 9 q^{5} + 6 q^{7} - 3 q^{8} + 6 q^{13} + 9 q^{17} + 9 q^{20} + 9 q^{25} - 9 q^{26} - 12 q^{28} + 18 q^{29} - 9 q^{34} + 6 q^{37} + 12 q^{38} + 9 q^{41} - 18 q^{47} - 12 q^{49} - 18 q^{50} - 12 q^{52} + 18 q^{53} + 6 q^{56} - 9 q^{58} + 18 q^{59} + 18 q^{61} + 6 q^{62} - 3 q^{64} + 9 q^{65} - 12 q^{67} - 36 q^{68} + 18 q^{70} + 36 q^{71} + 18 q^{73} - 27 q^{74} - 30 q^{79} + 18 q^{82} - 18 q^{83} - 9 q^{85} - 12 q^{86} - 12 q^{91} - 18 q^{92} - 18 q^{94} - 18 q^{95} - 12 q^{98}+O(q^{100}) \) Copy content Toggle raw display

Character values

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

\(n\) \(371\) \(631\)
\(\chi(n)\) \(1\) \(-\zeta_{18}^{5}\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
127.1
−0.173648 0.984808i
0.939693 0.342020i
−0.766044 0.642788i
0.939693 + 0.342020i
−0.766044 + 0.642788i
−0.173648 + 0.984808i
−0.939693 0.342020i 0 0.766044 + 0.642788i 0.205737 1.16679i 0 −0.532089 + 3.01763i −0.500000 0.866025i 0 −0.592396 + 1.02606i
145.1 0.766044 + 0.642788i 0 0.173648 + 0.984808i −2.09240 0.761570i 0 0.652704 + 0.237565i −0.500000 + 0.866025i 0 −1.11334 1.92836i
181.1 0.173648 0.984808i 0 −0.939693 0.342020i −2.61334 + 2.19285i 0 2.87939 2.41609i −0.500000 + 0.866025i 0 1.70574 + 2.95442i
271.1 0.766044 0.642788i 0 0.173648 0.984808i −2.09240 + 0.761570i 0 0.652704 0.237565i −0.500000 0.866025i 0 −1.11334 + 1.92836i
379.1 0.173648 + 0.984808i 0 −0.939693 + 0.342020i −2.61334 2.19285i 0 2.87939 + 2.41609i −0.500000 0.866025i 0 1.70574 2.95442i
451.1 −0.939693 + 0.342020i 0 0.766044 0.642788i 0.205737 + 1.16679i 0 −0.532089 3.01763i −0.500000 + 0.866025i 0 −0.592396 1.02606i
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 127.1
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
37.f even 9 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 666.2.x.b 6
3.b odd 2 1 222.2.k.d 6
37.f even 9 1 inner 666.2.x.b 6
111.n odd 18 1 8214.2.a.y 3
111.p odd 18 1 222.2.k.d 6
111.p odd 18 1 8214.2.a.s 3
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
222.2.k.d 6 3.b odd 2 1
222.2.k.d 6 111.p odd 18 1
666.2.x.b 6 1.a even 1 1 trivial
666.2.x.b 6 37.f even 9 1 inner
8214.2.a.s 3 111.p odd 18 1
8214.2.a.y 3 111.n odd 18 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{5}^{6} + 9T_{5}^{5} + 36T_{5}^{4} + 72T_{5}^{3} + 81T_{5}^{2} + 81T_{5} + 81 \) acting on \(S_{2}^{\mathrm{new}}(666, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{6} + T^{3} + 1 \) Copy content Toggle raw display
$3$ \( T^{6} \) Copy content Toggle raw display
$5$ \( T^{6} + 9 T^{5} + \cdots + 81 \) Copy content Toggle raw display
$7$ \( T^{6} - 6 T^{5} + \cdots + 64 \) Copy content Toggle raw display
$11$ \( T^{6} \) Copy content Toggle raw display
$13$ \( T^{6} - 6 T^{5} + \cdots + 1 \) Copy content Toggle raw display
$17$ \( T^{6} - 9 T^{5} + \cdots + 23409 \) Copy content Toggle raw display
$19$ \( T^{6} + 8T^{3} + 64 \) Copy content Toggle raw display
$23$ \( T^{6} + 36 T^{4} + \cdots + 5184 \) Copy content Toggle raw display
$29$ \( T^{6} - 18 T^{5} + \cdots + 23409 \) Copy content Toggle raw display
$31$ \( (T^{3} - 12 T - 8)^{2} \) Copy content Toggle raw display
$37$ \( T^{6} - 6 T^{5} + \cdots + 50653 \) Copy content Toggle raw display
$41$ \( T^{6} - 9 T^{5} + \cdots + 23409 \) Copy content Toggle raw display
$43$ \( (T^{3} - 48 T + 64)^{2} \) Copy content Toggle raw display
$47$ \( T^{6} + 18 T^{5} + \cdots + 5184 \) Copy content Toggle raw display
$53$ \( T^{6} - 18 T^{5} + \cdots + 6561 \) Copy content Toggle raw display
$59$ \( T^{6} - 18 T^{5} + \cdots + 5184 \) Copy content Toggle raw display
$61$ \( T^{6} - 18 T^{5} + \cdots + 5329 \) Copy content Toggle raw display
$67$ \( T^{6} + 12 T^{5} + \cdots + 2483776 \) Copy content Toggle raw display
$71$ \( T^{6} - 36 T^{5} + \cdots + 1498176 \) Copy content Toggle raw display
$73$ \( (T^{3} - 9 T^{2} + \cdots + 181)^{2} \) Copy content Toggle raw display
$79$ \( T^{6} + 30 T^{5} + \cdots + 87616 \) Copy content Toggle raw display
$83$ \( T^{6} + 18 T^{5} + \cdots + 46656 \) Copy content Toggle raw display
$89$ \( T^{6} - 45 T^{4} + \cdots + 23409 \) Copy content Toggle raw display
$97$ \( T^{6} + 3 T^{4} + \cdots + 1 \) Copy content Toggle raw display
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