Properties

Label 17.8.a.c
Level $17$
Weight $8$
Character orbit 17.a
Self dual yes
Analytic conductor $5.311$
Analytic rank $0$
Dimension $6$
CM no
Inner twists $1$

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Show commands: Magma / Pari/GP / SageMath

Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [17,8,Mod(1,17)] mf = mfinit([N,k,chi],0) lf = mfeigenbasis(mf)
 
Copy content magma://Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code chi := DirichletCharacter("17.1"); S:= CuspForms(chi, 8); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(17, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0])) N = Newforms(chi, 8, names="a")
 
Level: \( N \) \(=\) \( 17 \)
Weight: \( k \) \(=\) \( 8 \)
Character orbit: \([\chi]\) \(=\) 17.a (trivial)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [6] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(1)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: yes
Analytic conductor: \(5.31054543323\)
Analytic rank: \(0\)
Dimension: \(6\)
Coefficient field: \(\mathbb{Q}[x]/(x^{6} - \cdots)\)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{6} - 3x^{5} - 604x^{4} + 760x^{3} + 102128x^{2} - 41712x - 4749120 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2, a_3]\)
Coefficient ring index: \( 2^{4}\cdot 3 \)
Twist minimal: yes
Fricke sign: \(+1\)
Sato-Tate group: $\mathrm{SU}(2)$

$q$-expansion

Copy content comment:q-expansion
 
Copy content sage:f.q_expansion() # note that sage often uses an isomorphic number field
 
Copy content gp:mfcoefs(f, 20)
 

Coefficients of the \(q\)-expansion are expressed in terms of a basis \(1,\beta_1,\ldots,\beta_{5}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + (\beta_1 + 2) q^{2} + (\beta_{4} + \beta_1 + 6) q^{3} + (\beta_{5} - \beta_{4} + \beta_{3} + \cdots + 78) q^{4} + ( - 2 \beta_{5} + \beta_{4} + \cdots - 34) q^{5} + ( - 5 \beta_{5} - 4 \beta_{4} + \cdots + 312) q^{6}+ \cdots + ( - 47492 \beta_{5} + 153141 \beta_{4} + \cdots + 3955386) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 6 q + 15 q^{2} + 40 q^{3} + 485 q^{4} - 184 q^{5} + 1882 q^{6} + 2064 q^{7} + 6729 q^{8} + 5846 q^{9} + 5592 q^{10} + 2000 q^{11} + 3646 q^{12} + 8708 q^{13} - 19844 q^{14} + 12552 q^{15} + 5841 q^{16}+ \cdots + 25069976 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{6} - 3x^{5} - 604x^{4} + 760x^{3} + 102128x^{2} - 41712x - 4749120 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( \nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( 71\nu^{5} - 399\nu^{4} - 43730\nu^{3} + 272540\nu^{2} + 5573320\nu - 35238624 ) / 214848 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( 11\nu^{5} + 411\nu^{4} - 5924\nu^{3} - 173380\nu^{2} + 394816\nu + 11741952 ) / 53712 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( 119\nu^{5} - 1047\nu^{4} - 52490\nu^{3} + 307004\nu^{2} + 4688680\nu - 16189152 ) / 214848 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( \nu^{5} - 573\nu^{4} + 3734\nu^{3} + 235708\nu^{2} - 777112\nu - 17829408 ) / 53712 \) Copy content Toggle raw display
\(\nu\)\(=\) \( \beta_1 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( \beta_{5} - \beta_{4} + \beta_{3} + \beta_{2} + 3\beta _1 + 202 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( 15\beta_{5} - 5\beta_{4} + 17\beta_{3} - 3\beta_{2} + 279\beta _1 + 394 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( 429\beta_{5} - 447\beta_{4} + 539\beta_{3} + 391\beta_{2} + 1857\beta _1 + 55022 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( 7811\beta_{5} - 1753\beta_{4} + 9661\beta_{3} - 463\beta_{2} + 92263\beta _1 + 272802 \) Copy content Toggle raw display

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.

Copy content comment:embeddings in the coefficient field
 
Copy content gp:mfembed(f)
 
Label   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
1.1
−17.3402
−13.2090
−8.77791
8.81085
13.1882
20.3280
−15.3402 −70.5591 107.322 −537.404 1082.39 362.843 317.198 2791.58 8243.89
1.2 −11.2090 70.4777 −2.35934 −132.938 −789.982 1295.63 1461.19 2780.11 1490.10
1.3 −6.77791 −52.1459 −82.0600 356.107 353.440 248.464 1423.77 532.198 −2413.66
1.4 10.8108 75.6036 −11.1256 188.752 817.339 −871.217 −1504.07 3528.91 2040.57
1.5 15.1882 −6.67205 102.682 344.873 −101.337 1626.36 −384.534 −2142.48 5238.01
1.6 22.3280 23.2957 370.540 −403.390 520.147 −598.084 5415.44 −1644.31 −9006.90
\(n\): e.g. 2-40 or 80-90
Embeddings: e.g. 1-3 or 1.6
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(17\) \( +1 \)

Inner twists

This newform does not admit any (nontrivial) inner twists.

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 17.8.a.c 6
3.b odd 2 1 153.8.a.h 6
4.b odd 2 1 272.8.a.i 6
5.b even 2 1 425.8.a.c 6
17.b even 2 1 289.8.a.c 6
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
17.8.a.c 6 1.a even 1 1 trivial
153.8.a.h 6 3.b odd 2 1
272.8.a.i 6 4.b odd 2 1
289.8.a.c 6 17.b even 2 1
425.8.a.c 6 5.b even 2 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{2}^{6} - 15T_{2}^{5} - 514T_{2}^{4} + 5312T_{2}^{3} + 83552T_{2}^{2} - 422208T_{2} - 4272768 \) acting on \(S_{8}^{\mathrm{new}}(\Gamma_0(17))\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{6} - 15 T^{5} + \cdots - 4272768 \) Copy content Toggle raw display
$3$ \( T^{6} + \cdots - 3047209200 \) Copy content Toggle raw display
$5$ \( T^{6} + \cdots - 668046873600000 \) Copy content Toggle raw display
$7$ \( T^{6} + \cdots + 98\!\cdots\!52 \) Copy content Toggle raw display
$11$ \( T^{6} + \cdots + 25\!\cdots\!80 \) Copy content Toggle raw display
$13$ \( T^{6} + \cdots - 87\!\cdots\!92 \) Copy content Toggle raw display
$17$ \( (T + 4913)^{6} \) Copy content Toggle raw display
$19$ \( T^{6} + \cdots - 15\!\cdots\!40 \) Copy content Toggle raw display
$23$ \( T^{6} + \cdots - 26\!\cdots\!00 \) Copy content Toggle raw display
$29$ \( T^{6} + \cdots + 51\!\cdots\!00 \) Copy content Toggle raw display
$31$ \( T^{6} + \cdots + 43\!\cdots\!92 \) Copy content Toggle raw display
$37$ \( T^{6} + \cdots + 84\!\cdots\!24 \) Copy content Toggle raw display
$41$ \( T^{6} + \cdots + 75\!\cdots\!76 \) Copy content Toggle raw display
$43$ \( T^{6} + \cdots + 71\!\cdots\!36 \) Copy content Toggle raw display
$47$ \( T^{6} + \cdots - 75\!\cdots\!60 \) Copy content Toggle raw display
$53$ \( T^{6} + \cdots - 45\!\cdots\!64 \) Copy content Toggle raw display
$59$ \( T^{6} + \cdots - 39\!\cdots\!20 \) Copy content Toggle raw display
$61$ \( T^{6} + \cdots - 11\!\cdots\!00 \) Copy content Toggle raw display
$67$ \( T^{6} + \cdots + 37\!\cdots\!64 \) Copy content Toggle raw display
$71$ \( T^{6} + \cdots + 63\!\cdots\!64 \) Copy content Toggle raw display
$73$ \( T^{6} + \cdots + 11\!\cdots\!24 \) Copy content Toggle raw display
$79$ \( T^{6} + \cdots + 46\!\cdots\!60 \) Copy content Toggle raw display
$83$ \( T^{6} + \cdots + 39\!\cdots\!04 \) Copy content Toggle raw display
$89$ \( T^{6} + \cdots + 10\!\cdots\!00 \) Copy content Toggle raw display
$97$ \( T^{6} + \cdots - 49\!\cdots\!00 \) Copy content Toggle raw display
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