Show commands: Magma / Pari/GP / SageMath

Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [6664,2,Mod(1,6664)] 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("6664.1"); S:= CuspForms(chi, 2); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(6664, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0, 0, 0, 0])) N = Newforms(chi, 2, names="a")
 
Level: \( N \) \(=\) \( 6664 = 2^{3} \cdot 7^{2} \cdot 17 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 6664.a (trivial)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [7,0,0,0,-1] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(5)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: yes
Analytic conductor: \(53.2123079070\)
Analytic rank: \(0\)
Dimension: \(7\)
Coefficient field: \(\mathbb{Q}[x]/(x^{7} - \cdots)\)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{7} - 11x^{5} - 3x^{4} + 27x^{3} + 6x^{2} - 12x - 4 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{5}]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 952)
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 \(1,\beta_1,\ldots,\beta_{6}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + \beta_1 q^{3} - \beta_{4} q^{5} + \beta_{2} q^{9} + (\beta_{6} + \beta_{3}) q^{11} + ( - \beta_{4} - \beta_{3} + 2) q^{13} + (\beta_{2} - \beta_1 + 1) q^{15} - q^{17} + (\beta_{6} - \beta_{5} - \beta_{4} - 1) q^{19}+ \cdots + ( - 2 \beta_{6} + \beta_{2} + \beta_1 - 1) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 7 q - q^{5} + q^{9} + 5 q^{11} + 11 q^{13} + 8 q^{15} - 7 q^{17} - 2 q^{19} + 9 q^{23} + 2 q^{25} + 9 q^{27} + 9 q^{29} - 2 q^{31} + 2 q^{33} + 8 q^{37} + q^{39} + 6 q^{41} + 10 q^{43} - 10 q^{45} - q^{47}+ \cdots - 12 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{7} - 11x^{5} - 3x^{4} + 27x^{3} + 6x^{2} - 12x - 4 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( \nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( \nu^{2} - 3 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( \nu^{6} - 11\nu^{4} - \nu^{3} + 25\nu^{2} - 6\nu - 6 ) / 2 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( \nu^{6} - 11\nu^{4} - 3\nu^{3} + 27\nu^{2} + 4\nu - 10 ) / 2 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( -2\nu^{6} + \nu^{5} + 21\nu^{4} - 4\nu^{3} - 48\nu^{2} + 11\nu + 14 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( -3\nu^{6} + 2\nu^{5} + 33\nu^{4} - 13\nu^{3} - 85\nu^{2} + 32\nu + 34 ) / 2 \) Copy content Toggle raw display
\(\nu\)\(=\) \( \beta_1 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( \beta_{2} + 3 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( -\beta_{4} + \beta_{3} + \beta_{2} + 5\beta _1 + 1 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( \beta_{6} - \beta_{5} - 2\beta_{4} + \beta_{3} + 9\beta_{2} + 2\beta _1 + 17 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( \beta_{6} - 8\beta_{4} + 11\beta_{3} + 13\beta_{2} + 33\beta _1 + 15 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( 11\beta_{6} - 11\beta_{5} - 23\beta_{4} + 14\beta_{3} + 75\beta_{2} + 33\beta _1 + 119 \) 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
−2.43200
−1.91766
−0.594018
−0.386094
0.824520
1.51862
2.98664
0 −2.43200 0 −2.60963 0 0 0 2.91461 0
1.2 0 −1.91766 0 −1.87473 0 0 0 0.677431 0
1.3 0 −0.594018 0 1.77288 0 0 0 −2.64714 0
1.4 0 −0.386094 0 3.79399 0 0 0 −2.85093 0
1.5 0 0.824520 0 −2.60113 0 0 0 −2.32017 0
1.6 0 1.51862 0 −0.798372 0 0 0 −0.693805 0
1.7 0 2.98664 0 1.31699 0 0 0 5.92000 0
\(n\): e.g. 2-40 or 80-90
Embeddings: e.g. 1-3 or 1.7
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(2\) \( -1 \)
\(7\) \( +1 \)
\(17\) \( +1 \)

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 6664.2.a.w 7
7.b odd 2 1 6664.2.a.x 7
7.c even 3 2 952.2.q.d 14
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
952.2.q.d 14 7.c even 3 2
6664.2.a.w 7 1.a even 1 1 trivial
6664.2.a.x 7 7.b odd 2 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(\Gamma_0(6664))\):

\( T_{3}^{7} - 11T_{3}^{5} - 3T_{3}^{4} + 27T_{3}^{3} + 6T_{3}^{2} - 12T_{3} - 4 \) Copy content Toggle raw display
\( T_{5}^{7} + T_{5}^{6} - 18T_{5}^{5} - 25T_{5}^{4} + 74T_{5}^{3} + 98T_{5}^{2} - 87T_{5} - 90 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{7} \) Copy content Toggle raw display
$3$ \( T^{7} - 11 T^{5} + \cdots - 4 \) Copy content Toggle raw display
$5$ \( T^{7} + T^{6} + \cdots - 90 \) Copy content Toggle raw display
$7$ \( T^{7} \) Copy content Toggle raw display
$11$ \( T^{7} - 5 T^{6} + \cdots + 892 \) Copy content Toggle raw display
$13$ \( T^{7} - 11 T^{6} + \cdots + 36 \) Copy content Toggle raw display
$17$ \( (T + 1)^{7} \) Copy content Toggle raw display
$19$ \( T^{7} + 2 T^{6} + \cdots + 8506 \) Copy content Toggle raw display
$23$ \( T^{7} - 9 T^{6} + \cdots - 12032 \) Copy content Toggle raw display
$29$ \( T^{7} - 9 T^{6} + \cdots - 8616 \) Copy content Toggle raw display
$31$ \( T^{7} + 2 T^{6} + \cdots - 592 \) Copy content Toggle raw display
$37$ \( T^{7} - 8 T^{6} + \cdots + 158776 \) Copy content Toggle raw display
$41$ \( T^{7} - 6 T^{6} + \cdots - 36744 \) Copy content Toggle raw display
$43$ \( T^{7} - 10 T^{6} + \cdots - 6184 \) Copy content Toggle raw display
$47$ \( T^{7} + T^{6} + \cdots - 254264 \) Copy content Toggle raw display
$53$ \( T^{7} - 3 T^{6} + \cdots + 378232 \) Copy content Toggle raw display
$59$ \( T^{7} + 4 T^{6} + \cdots - 128448 \) Copy content Toggle raw display
$61$ \( T^{7} + 32 T^{6} + \cdots - 40080 \) Copy content Toggle raw display
$67$ \( T^{7} - 31 T^{6} + \cdots + 6858 \) Copy content Toggle raw display
$71$ \( T^{7} - 3 T^{6} + \cdots - 1803 \) Copy content Toggle raw display
$73$ \( T^{7} + 7 T^{6} + \cdots - 70504 \) Copy content Toggle raw display
$79$ \( T^{7} - 8 T^{6} + \cdots + 173956 \) Copy content Toggle raw display
$83$ \( T^{7} - 24 T^{6} + \cdots - 7744 \) Copy content Toggle raw display
$89$ \( T^{7} - 4 T^{6} + \cdots + 21952 \) Copy content Toggle raw display
$97$ \( T^{7} - 15 T^{6} + \cdots + 18413568 \) Copy content Toggle raw display
show more
show less