Properties

Label 343.2.g.c
Level $343$
Weight $2$
Character orbit 343.g
Analytic conductor $2.739$
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] = [343,2,Mod(30,343)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(343, base_ring=CyclotomicField(42))
 
chi = DirichletCharacter(H, H._module([32]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("343.30");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 343 = 7^{3} \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 343.g (of order \(21\), degree \(12\), not 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: \(2.73886878933\)
Analytic rank: \(0\)
Dimension: \(12\)
Coefficient field: \(\Q(\zeta_{21})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{12} - x^{11} + x^{9} - x^{8} + x^{6} - x^{4} + x^{3} - x + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2, a_3]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 49)
Sato-Tate group: $\mathrm{SU}(2)[C_{21}]$

$q$-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 \(\zeta_{21}\). We also show the integral \(q\)-expansion of the trace form.

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

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/343\mathbb{Z}\right)^\times\).

\(n\) \(3\)
\(\chi(n)\) \(\zeta_{21}^{2}\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
30.1
−0.733052 + 0.680173i
0.365341 + 0.930874i
0.826239 + 0.563320i
0.955573 + 0.294755i
0.365341 0.930874i
0.826239 0.563320i
−0.988831 0.149042i
0.0747301 0.997204i
0.0747301 + 0.997204i
−0.733052 0.680173i
0.955573 0.294755i
−0.988831 + 0.149042i
1.63402 1.11406i −1.94440 + 1.80414i 0.698220 1.77904i 1.54379 + 0.476196i −1.16728 + 5.11418i 0 0.0391023 + 0.171318i 0.301584 4.02435i 3.05309 0.941754i
67.1 −0.142820 + 0.0440542i 1.06356 + 2.70991i −1.63402 + 1.11406i 2.17225 + 0.327414i −0.271281 0.340175i 0 0.370666 0.464800i −4.01329 + 3.72379i −0.324665 + 0.0489353i
79.1 −1.44973 + 0.218511i −0.807782 0.550736i 0.142820 0.0440542i −0.0688859 + 0.919218i 1.29141 + 0.621909i 0 2.44440 1.17716i −0.746822 1.90287i −0.100994 1.34767i
116.1 −0.0546039 0.728639i 1.09839 + 0.338809i 1.44973 0.218511i 0.189617 0.175939i 0.186893 0.818832i 0 −0.563561 2.46912i −1.38704 0.945669i −0.138550 0.128555i
128.1 −0.142820 0.0440542i 1.06356 2.70991i −1.63402 1.11406i 2.17225 0.327414i −0.271281 + 0.340175i 0 0.370666 + 0.464800i −4.01329 3.72379i −0.324665 0.0489353i
165.1 −1.44973 0.218511i −0.807782 + 0.550736i 0.142820 + 0.0440542i −0.0688859 0.919218i 1.29141 0.621909i 0 2.44440 + 1.17716i −0.746822 + 1.90287i −0.100994 + 1.34767i
177.1 1.21135 + 1.12397i 0.460898 + 0.0694692i 0.0546039 + 0.728639i 1.42074 + 3.61999i 0.480228 + 0.602187i 0 1.30778 1.63991i −2.65912 0.820229i −2.34774 + 5.98195i
214.1 −0.698220 + 1.77904i 0.129334 1.72584i −1.21135 1.12397i −1.75751 1.19825i 2.98003 + 1.43511i 0 −0.598393 + 0.288171i 0.00468671 0.000706408i 3.35886 2.29003i
226.1 −0.698220 1.77904i 0.129334 + 1.72584i −1.21135 + 1.12397i −1.75751 + 1.19825i 2.98003 1.43511i 0 −0.598393 0.288171i 0.00468671 0.000706408i 3.35886 + 2.29003i
263.1 1.63402 + 1.11406i −1.94440 1.80414i 0.698220 + 1.77904i 1.54379 0.476196i −1.16728 5.11418i 0 0.0391023 0.171318i 0.301584 + 4.02435i 3.05309 + 0.941754i
275.1 −0.0546039 + 0.728639i 1.09839 0.338809i 1.44973 + 0.218511i 0.189617 + 0.175939i 0.186893 + 0.818832i 0 −0.563561 + 2.46912i −1.38704 + 0.945669i −0.138550 + 0.128555i
312.1 1.21135 1.12397i 0.460898 0.0694692i 0.0546039 0.728639i 1.42074 3.61999i 0.480228 0.602187i 0 1.30778 + 1.63991i −2.65912 + 0.820229i −2.34774 5.98195i
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 30.1
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
49.g even 21 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 343.2.g.c 12
7.b odd 2 1 343.2.g.b 12
7.c even 3 1 343.2.e.b 12
7.c even 3 1 343.2.g.a 12
7.d odd 6 1 49.2.e.b 12
7.d odd 6 1 343.2.g.d 12
21.g even 6 1 441.2.u.b 12
28.f even 6 1 784.2.u.b 12
49.e even 7 1 343.2.g.a 12
49.f odd 14 1 343.2.g.d 12
49.g even 21 1 343.2.e.b 12
49.g even 21 1 inner 343.2.g.c 12
49.g even 21 1 2401.2.a.d 6
49.h odd 42 1 49.2.e.b 12
49.h odd 42 1 343.2.g.b 12
49.h odd 42 1 2401.2.a.c 6
147.o even 42 1 441.2.u.b 12
196.p even 42 1 784.2.u.b 12
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
49.2.e.b 12 7.d odd 6 1
49.2.e.b 12 49.h odd 42 1
343.2.e.b 12 7.c even 3 1
343.2.e.b 12 49.g even 21 1
343.2.g.a 12 7.c even 3 1
343.2.g.a 12 49.e even 7 1
343.2.g.b 12 7.b odd 2 1
343.2.g.b 12 49.h odd 42 1
343.2.g.c 12 1.a even 1 1 trivial
343.2.g.c 12 49.g even 21 1 inner
343.2.g.d 12 7.d odd 6 1
343.2.g.d 12 49.f odd 14 1
441.2.u.b 12 21.g even 6 1
441.2.u.b 12 147.o even 42 1
784.2.u.b 12 28.f even 6 1
784.2.u.b 12 196.p even 42 1
2401.2.a.c 6 49.h odd 42 1
2401.2.a.d 6 49.g even 21 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(343, [\chi])\):

\( T_{2}^{12} - T_{2}^{11} + T_{2}^{9} + 6T_{2}^{8} + 21T_{2}^{7} - 20T_{2}^{6} + 69T_{2}^{4} + 29T_{2}^{3} + 49T_{2}^{2} + 13T_{2} + 1 \) Copy content Toggle raw display
\( T_{3}^{12} + 7 T_{3}^{10} + 7 T_{3}^{9} + 42 T_{3}^{8} - 77 T_{3}^{7} + 112 T_{3}^{6} - 196 T_{3}^{5} + \cdots + 49 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{12} - T^{11} + \cdots + 1 \) Copy content Toggle raw display
$3$ \( T^{12} + 7 T^{10} + \cdots + 49 \) Copy content Toggle raw display
$5$ \( T^{12} - 7 T^{11} + \cdots + 49 \) Copy content Toggle raw display
$7$ \( T^{12} \) Copy content Toggle raw display
$11$ \( T^{12} - 4 T^{11} + \cdots + 1849 \) Copy content Toggle raw display
$13$ \( T^{12} + 7 T^{11} + \cdots + 49 \) Copy content Toggle raw display
$17$ \( T^{12} - 28 T^{10} + \cdots + 3087049 \) Copy content Toggle raw display
$19$ \( T^{12} + 7 T^{11} + \cdots + 4439449 \) Copy content Toggle raw display
$23$ \( T^{12} - T^{11} + \cdots + 1 \) Copy content Toggle raw display
$29$ \( T^{12} + 11 T^{11} + \cdots + 1681 \) Copy content Toggle raw display
$31$ \( T^{12} + 7 T^{11} + \cdots + 66961489 \) Copy content Toggle raw display
$37$ \( T^{12} + \cdots + 295118041 \) Copy content Toggle raw display
$41$ \( T^{12} + 21 T^{11} + \cdots + 10413529 \) Copy content Toggle raw display
$43$ \( T^{12} + \cdots + 200307409 \) Copy content Toggle raw display
$47$ \( T^{12} + \cdots + 3021810841 \) Copy content Toggle raw display
$53$ \( T^{12} - 18 T^{11} + \cdots + 2985984 \) Copy content Toggle raw display
$59$ \( T^{12} - 7 T^{11} + \cdots + 54125449 \) Copy content Toggle raw display
$61$ \( T^{12} + \cdots + 261242569 \) Copy content Toggle raw display
$67$ \( T^{12} + 24 T^{11} + \cdots + 85849 \) Copy content Toggle raw display
$71$ \( T^{12} + \cdots + 312925003609 \) Copy content Toggle raw display
$73$ \( T^{12} + \cdots + 460917961 \) Copy content Toggle raw display
$79$ \( T^{12} + \cdots + 467813641 \) Copy content Toggle raw display
$83$ \( T^{12} + \cdots + 118178641 \) Copy content Toggle raw display
$89$ \( T^{12} + \cdots + 89755965649 \) Copy content Toggle raw display
$97$ \( (T^{6} - 14 T^{5} + \cdots + 18571)^{2} \) Copy content Toggle raw display
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