Properties

Label 222.2.k.b
Level $222$
Weight $2$
Character orbit 222.k
Analytic conductor $1.773$
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] = [222,2,Mod(7,222)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(222, base_ring=CyclotomicField(18))
 
chi = DirichletCharacter(H, H._module([0, 16]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("222.7");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 222 = 2 \cdot 3 \cdot 37 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 222.k (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: \(1.77267892487\)
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: yes
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.

\(f(q)\) \(=\) \( q + ( - \zeta_{18}^{4} + \zeta_{18}) q^{2} + \zeta_{18}^{2} q^{3} - \zeta_{18}^{5} q^{4} + ( - 2 \zeta_{18}^{5} + \cdots + 2 \zeta_{18}^{2}) q^{5} + \cdots + \zeta_{18}^{4} q^{9} +O(q^{10}) \) Copy content Toggle raw display \( q + ( - \zeta_{18}^{4} + \zeta_{18}) q^{2} + \zeta_{18}^{2} q^{3} - \zeta_{18}^{5} q^{4} + ( - 2 \zeta_{18}^{5} + \cdots + 2 \zeta_{18}^{2}) q^{5} + \cdots + ( - \zeta_{18}^{5} + \zeta_{18}^{3} + \cdots + 1) q^{99} +O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 6 q - 3 q^{5} + 6 q^{6} - 3 q^{7} - 3 q^{8}+O(q^{10}) \) Copy content Toggle raw display \( 6 q - 3 q^{5} + 6 q^{6} - 3 q^{7} - 3 q^{8} + 6 q^{10} + 12 q^{13} - 3 q^{15} - 6 q^{17} + 9 q^{19} + 6 q^{20} - 3 q^{21} + 12 q^{23} + 9 q^{25} - 3 q^{26} - 3 q^{27} + 6 q^{28} + 3 q^{29} - 3 q^{30} - 6 q^{31} - 9 q^{33} + 12 q^{34} + 3 q^{35} + 6 q^{36} - 12 q^{37} - 24 q^{38} - 15 q^{39} - 3 q^{40} - 6 q^{41} - 3 q^{42} - 42 q^{43} + 6 q^{45} - 6 q^{46} - 3 q^{47} - 3 q^{48} - 3 q^{49} - 27 q^{50} + 3 q^{51} + 3 q^{52} + 27 q^{53} - 9 q^{55} - 3 q^{56} - 9 q^{57} + 21 q^{58} - 21 q^{59} + 6 q^{60} + 9 q^{61} - 3 q^{64} - 15 q^{65} - 6 q^{68} + 3 q^{69} - 15 q^{70} + 6 q^{71} + 24 q^{73} + 9 q^{74} + 6 q^{75} + 9 q^{76} + 9 q^{77} + 12 q^{78} - 24 q^{79} - 12 q^{80} - 6 q^{82} + 9 q^{83} + 9 q^{86} - 24 q^{87} + 21 q^{89} - 3 q^{90} + 9 q^{91} + 3 q^{92} + 6 q^{94} + 3 q^{95} - 3 q^{97} - 3 q^{98} + 9 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/222\mathbb{Z}\right)^\times\).

\(n\) \(149\) \(187\)
\(\chi(n)\) \(1\) \(-\zeta_{18}^{5}\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
7.1
−0.173648 + 0.984808i
0.939693 + 0.342020i
−0.173648 0.984808i
0.939693 0.342020i
−0.766044 + 0.642788i
−0.766044 0.642788i
−0.939693 + 0.342020i −0.939693 0.342020i 0.766044 0.642788i −0.0812519 0.460802i 1.00000 0.266044 + 1.50881i −0.500000 + 0.866025i 0.766044 + 0.642788i 0.233956 + 0.405223i
49.1 0.766044 0.642788i 0.766044 + 0.642788i 0.173648 0.984808i 1.55303 0.565258i 1.00000 −0.326352 + 0.118782i −0.500000 0.866025i 0.173648 + 0.984808i 0.826352 1.43128i
127.1 −0.939693 0.342020i −0.939693 + 0.342020i 0.766044 + 0.642788i −0.0812519 + 0.460802i 1.00000 0.266044 1.50881i −0.500000 0.866025i 0.766044 0.642788i 0.233956 0.405223i
145.1 0.766044 + 0.642788i 0.766044 0.642788i 0.173648 + 0.984808i 1.55303 + 0.565258i 1.00000 −0.326352 0.118782i −0.500000 + 0.866025i 0.173648 0.984808i 0.826352 + 1.43128i
157.1 0.173648 + 0.984808i 0.173648 0.984808i −0.939693 + 0.342020i −2.97178 2.49362i 1.00000 −1.43969 1.20805i −0.500000 0.866025i −0.939693 0.342020i 1.93969 3.35965i
181.1 0.173648 0.984808i 0.173648 + 0.984808i −0.939693 0.342020i −2.97178 + 2.49362i 1.00000 −1.43969 + 1.20805i −0.500000 + 0.866025i −0.939693 + 0.342020i 1.93969 + 3.35965i
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 7.1
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 222.2.k.b 6
3.b odd 2 1 666.2.x.d 6
37.f even 9 1 inner 222.2.k.b 6
37.f even 9 1 8214.2.a.x 3
37.h even 18 1 8214.2.a.u 3
111.p odd 18 1 666.2.x.d 6
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
222.2.k.b 6 1.a even 1 1 trivial
222.2.k.b 6 37.f even 9 1 inner
666.2.x.d 6 3.b odd 2 1
666.2.x.d 6 111.p odd 18 1
8214.2.a.u 3 37.h even 18 1
8214.2.a.x 3 37.f even 9 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{5}^{6} + 3T_{5}^{5} - 30T_{5}^{3} + 36T_{5}^{2} + 9 \) acting on \(S_{2}^{\mathrm{new}}(222, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{6} + T^{3} + 1 \) Copy content Toggle raw display
$3$ \( T^{6} + T^{3} + 1 \) Copy content Toggle raw display
$5$ \( T^{6} + 3 T^{5} + \cdots + 9 \) Copy content Toggle raw display
$7$ \( T^{6} + 3 T^{5} + \cdots + 1 \) Copy content Toggle raw display
$11$ \( T^{6} + 9 T^{4} + \cdots + 81 \) Copy content Toggle raw display
$13$ \( T^{6} - 12 T^{5} + \cdots + 289 \) Copy content Toggle raw display
$17$ \( T^{6} + 6 T^{5} + \cdots + 9 \) Copy content Toggle raw display
$19$ \( T^{6} - 9 T^{5} + \cdots + 1369 \) Copy content Toggle raw display
$23$ \( T^{6} - 12 T^{5} + \cdots + 2601 \) Copy content Toggle raw display
$29$ \( T^{6} - 3 T^{5} + \cdots + 47961 \) Copy content Toggle raw display
$31$ \( (T^{3} + 3 T^{2} + \cdots - 323)^{2} \) Copy content Toggle raw display
$37$ \( T^{6} + 12 T^{5} + \cdots + 50653 \) Copy content Toggle raw display
$41$ \( T^{6} + 6 T^{5} + \cdots + 576 \) Copy content Toggle raw display
$43$ \( (T^{3} + 21 T^{2} + \cdots + 127)^{2} \) Copy content Toggle raw display
$47$ \( T^{6} + 3 T^{5} + \cdots + 9 \) Copy content Toggle raw display
$53$ \( T^{6} - 27 T^{5} + \cdots + 227529 \) Copy content Toggle raw display
$59$ \( T^{6} + 21 T^{5} + \cdots + 2601 \) Copy content Toggle raw display
$61$ \( T^{6} - 9 T^{5} + \cdots + 1 \) Copy content Toggle raw display
$67$ \( T^{6} + 54 T^{4} + \cdots + 104329 \) Copy content Toggle raw display
$71$ \( T^{6} - 6 T^{5} + \cdots + 576 \) Copy content Toggle raw display
$73$ \( (T^{3} - 12 T^{2} + \cdots + 712)^{2} \) Copy content Toggle raw display
$79$ \( T^{6} + 24 T^{5} + \cdots + 1 \) Copy content Toggle raw display
$83$ \( T^{6} - 9 T^{5} + \cdots + 29241 \) Copy content Toggle raw display
$89$ \( T^{6} - 21 T^{5} + \cdots + 1292769 \) Copy content Toggle raw display
$97$ \( T^{6} + 3 T^{5} + \cdots + 2809 \) Copy content Toggle raw display
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