Properties

Label 8624.2.a.cj
Level $8624$
Weight $2$
Character orbit 8624.a
Self dual yes
Analytic conductor $68.863$
Analytic rank $1$
Dimension $3$
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] = [8624,2,Mod(1,8624)] 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("8624.1"); S:= CuspForms(chi, 2); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(8624, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0, 0, 0, 0])) N = Newforms(chi, 2, names="a")
 
Level: \( N \) \(=\) \( 8624 = 2^{4} \cdot 7^{2} \cdot 11 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 8624.a (trivial)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [3,0,-1,0,1,0,0,0,4,0,-3,0,-12,0,-9,0,-2,0,-2,0,0,0,7,0,18,0, -7,0,6,0,-9,0,1,0,0,0,7] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(37)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: yes
Analytic conductor: \(68.8629867032\)
Analytic rank: \(1\)
Dimension: \(3\)
Coefficient field: 3.3.1016.1
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{3} - x^{2} - 6x + 2 \) 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 308)
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 \(1,\beta_1,\beta_2\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q - \beta_1 q^{3} + (\beta_{2} + \beta_1) q^{5} + (\beta_{2} + \beta_1 + 1) q^{9} - q^{11} + ( - \beta_{2} - 4) q^{13} + ( - \beta_{2} - 3 \beta_1 - 2) q^{15} + (\beta_{2} - 2 \beta_1) q^{17} - 2 \beta_1 q^{19}+ \cdots + ( - \beta_{2} - \beta_1 - 1) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 3 q - q^{3} + q^{5} + 4 q^{9} - 3 q^{11} - 12 q^{13} - 9 q^{15} - 2 q^{17} - 2 q^{19} + 7 q^{23} + 18 q^{25} - 7 q^{27} + 6 q^{29} - 9 q^{31} + q^{33} + 7 q^{37} + 2 q^{41} + 4 q^{43} + 34 q^{45} - 4 q^{47}+ \cdots - 4 q^{99}+O(q^{100}) \) Copy content Toggle raw display

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

\(\beta_{1}\)\(=\) \( \nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( \nu^{2} - \nu - 4 \) Copy content Toggle raw display
\(\nu\)\(=\) \( \beta_1 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( \beta_{2} + \beta _1 + 4 \) 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
2.85577
0.321637
−2.17741
0 −2.85577 0 4.15544 0 0 0 5.15544 0
1.2 0 −0.321637 0 −3.89655 0 0 0 −2.89655 0
1.3 0 2.17741 0 0.741113 0 0 0 1.74111 0
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(2\) \( -1 \)
\(7\) \( -1 \)
\(11\) \( +1 \)

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 8624.2.a.cj 3
4.b odd 2 1 2156.2.a.j 3
7.b odd 2 1 1232.2.a.r 3
28.d even 2 1 308.2.a.c 3
28.f even 6 2 2156.2.i.m 6
28.g odd 6 2 2156.2.i.k 6
56.e even 2 1 4928.2.a.ca 3
56.h odd 2 1 4928.2.a.bx 3
84.h odd 2 1 2772.2.a.s 3
140.c even 2 1 7700.2.a.y 3
140.j odd 4 2 7700.2.e.p 6
308.g odd 2 1 3388.2.a.o 3
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
308.2.a.c 3 28.d even 2 1
1232.2.a.r 3 7.b odd 2 1
2156.2.a.j 3 4.b odd 2 1
2156.2.i.k 6 28.g odd 6 2
2156.2.i.m 6 28.f even 6 2
2772.2.a.s 3 84.h odd 2 1
3388.2.a.o 3 308.g odd 2 1
4928.2.a.bx 3 56.h odd 2 1
4928.2.a.ca 3 56.e even 2 1
7700.2.a.y 3 140.c even 2 1
7700.2.e.p 6 140.j odd 4 2
8624.2.a.cj 3 1.a even 1 1 trivial

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(\Gamma_0(8624))\):

\( T_{3}^{3} + T_{3}^{2} - 6T_{3} - 2 \) Copy content Toggle raw display
\( T_{5}^{3} - T_{5}^{2} - 16T_{5} + 12 \) Copy content Toggle raw display
\( T_{13}^{3} + 12T_{13}^{2} + 34T_{13} - 8 \) Copy content Toggle raw display
\( T_{17}^{3} + 2T_{17}^{2} - 46T_{17} - 156 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{3} \) Copy content Toggle raw display
$3$ \( T^{3} + T^{2} - 6T - 2 \) Copy content Toggle raw display
$5$ \( T^{3} - T^{2} + \cdots + 12 \) Copy content Toggle raw display
$7$ \( T^{3} \) Copy content Toggle raw display
$11$ \( (T + 1)^{3} \) Copy content Toggle raw display
$13$ \( T^{3} + 12 T^{2} + \cdots - 8 \) Copy content Toggle raw display
$17$ \( T^{3} + 2 T^{2} + \cdots - 156 \) Copy content Toggle raw display
$19$ \( T^{3} + 2 T^{2} + \cdots - 16 \) Copy content Toggle raw display
$23$ \( T^{3} - 7 T^{2} + \cdots + 72 \) Copy content Toggle raw display
$29$ \( T^{3} - 6 T^{2} + \cdots - 24 \) Copy content Toggle raw display
$31$ \( T^{3} + 9 T^{2} + \cdots - 146 \) Copy content Toggle raw display
$37$ \( T^{3} - 7T^{2} + 32 \) Copy content Toggle raw display
$41$ \( T^{3} - 2 T^{2} + \cdots + 156 \) Copy content Toggle raw display
$43$ \( T^{3} - 4 T^{2} + \cdots + 32 \) Copy content Toggle raw display
$47$ \( T^{3} + 4 T^{2} + \cdots - 96 \) Copy content Toggle raw display
$53$ \( T^{3} - 2 T^{2} + \cdots + 96 \) Copy content Toggle raw display
$59$ \( T^{3} + 23 T^{2} + \cdots + 402 \) Copy content Toggle raw display
$61$ \( T^{3} + 14 T^{2} + \cdots - 916 \) Copy content Toggle raw display
$67$ \( T^{3} - 5 T^{2} + \cdots + 8 \) Copy content Toggle raw display
$71$ \( T^{3} - 5 T^{2} + \cdots - 312 \) Copy content Toggle raw display
$73$ \( T^{3} - 14 T^{2} + \cdots + 244 \) Copy content Toggle raw display
$79$ \( T^{3} + 14 T^{2} + \cdots - 936 \) Copy content Toggle raw display
$83$ \( T^{3} - 4 T^{2} + \cdots + 1248 \) Copy content Toggle raw display
$89$ \( T^{3} - 19 T^{2} + \cdots + 1284 \) Copy content Toggle raw display
$97$ \( T^{3} + 15 T^{2} + \cdots + 4 \) Copy content Toggle raw display
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