Properties

Label 8208.2.a.bp
Level $8208$
Weight $2$
Character orbit 8208.a
Self dual yes
Analytic conductor $65.541$
Analytic rank $1$
Dimension $3$
CM no
Inner twists $1$

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Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [8208,2,Mod(1,8208)] 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("8208.1"); S:= CuspForms(chi, 2); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(8208, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0, 0, 0, 0])) N = Newforms(chi, 2, names="a")
 
Level: \( N \) \(=\) \( 8208 = 2^{4} \cdot 3^{3} \cdot 19 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 8208.a (trivial)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [3,0,0,0,5,0,-1,0,0,0,-8] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(11)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: yes
Analytic conductor: \(65.5412099791\)
Analytic rank: \(1\)
Dimension: \(3\)
Coefficient field: 3.3.321.1
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{3} - x^{2} - 4x + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{5}]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 513)
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.

\(f(q)\) \(=\) \( q + ( - \beta_1 + 2) q^{5} + \beta_{2} q^{7} + ( - \beta_{2} - 3) q^{11} + \beta_{2} q^{13} + ( - 2 \beta_{2} + 2 \beta_1 + 1) q^{17} + q^{19} + (3 \beta_1 - 4) q^{23} + (\beta_{2} - 3 \beta_1 + 2) q^{25}+ \cdots + ( - 3 \beta_{2} + \beta_1 - 9) q^{97}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 3 q + 5 q^{5} - q^{7} - 8 q^{11} - q^{13} + 7 q^{17} + 3 q^{19} - 9 q^{23} + 2 q^{25} - 6 q^{29} + 2 q^{31} - 11 q^{37} + 5 q^{41} - 9 q^{43} - 27 q^{47} - 8 q^{49} + 2 q^{53} - 15 q^{55} + q^{59} + 7 q^{61}+ \cdots - 23 q^{97}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{3} - x^{2} - 4x + 1 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( \nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( \nu^{2} - \nu - 3 \) Copy content Toggle raw display
\(\nu\)\(=\) \( \beta_1 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( \beta_{2} + \beta _1 + 3 \) 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
2.46050
0.239123
−1.69963
0 0 0 −0.460505 0 0.593579 0 0 0
1.2 0 0 0 1.76088 0 −3.18194 0 0 0
1.3 0 0 0 3.69963 0 1.58836 0 0 0
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(2\) \( -1 \)
\(3\) \( +1 \)
\(19\) \( -1 \)

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 8208.2.a.bp 3
3.b odd 2 1 8208.2.a.bf 3
4.b odd 2 1 513.2.a.f yes 3
12.b even 2 1 513.2.a.e 3
76.d even 2 1 9747.2.a.x 3
228.b odd 2 1 9747.2.a.ba 3
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
513.2.a.e 3 12.b even 2 1
513.2.a.f yes 3 4.b odd 2 1
8208.2.a.bf 3 3.b odd 2 1
8208.2.a.bp 3 1.a even 1 1 trivial
9747.2.a.x 3 76.d even 2 1
9747.2.a.ba 3 228.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 \(S_{2}^{\mathrm{new}}(\Gamma_0(8208))\):

\( T_{5}^{3} - 5T_{5}^{2} + 4T_{5} + 3 \) Copy content Toggle raw display
\( T_{7}^{3} + T_{7}^{2} - 6T_{7} + 3 \) Copy content Toggle raw display
\( T_{11}^{3} + 8T_{11}^{2} + 15T_{11} - 3 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{3} \) Copy content Toggle raw display
$3$ \( T^{3} \) Copy content Toggle raw display
$5$ \( T^{3} - 5 T^{2} + \cdots + 3 \) Copy content Toggle raw display
$7$ \( T^{3} + T^{2} - 6T + 3 \) Copy content Toggle raw display
$11$ \( T^{3} + 8 T^{2} + \cdots - 3 \) Copy content Toggle raw display
$13$ \( T^{3} + T^{2} - 6T + 3 \) Copy content Toggle raw display
$17$ \( T^{3} - 7 T^{2} + \cdots + 207 \) Copy content Toggle raw display
$19$ \( (T - 1)^{3} \) Copy content Toggle raw display
$23$ \( T^{3} + 9 T^{2} + \cdots - 101 \) Copy content Toggle raw display
$29$ \( T^{3} + 6 T^{2} + \cdots - 569 \) Copy content Toggle raw display
$31$ \( T^{3} - 2 T^{2} + \cdots + 9 \) Copy content Toggle raw display
$37$ \( T^{3} + 11 T^{2} + \cdots - 9 \) Copy content Toggle raw display
$41$ \( T^{3} - 5 T^{2} + \cdots + 3 \) Copy content Toggle raw display
$43$ \( T^{3} + 9 T^{2} + \cdots - 811 \) Copy content Toggle raw display
$47$ \( (T + 9)^{3} \) Copy content Toggle raw display
$53$ \( T^{3} - 2 T^{2} + \cdots + 837 \) Copy content Toggle raw display
$59$ \( T^{3} - T^{2} + \cdots - 21 \) Copy content Toggle raw display
$61$ \( T^{3} - 7 T^{2} + \cdots + 1 \) Copy content Toggle raw display
$67$ \( T^{3} - 12 T^{2} + \cdots + 707 \) Copy content Toggle raw display
$71$ \( T^{3} - 69T + 189 \) Copy content Toggle raw display
$73$ \( T^{3} + 3 T^{2} + \cdots - 43 \) Copy content Toggle raw display
$79$ \( T^{3} + 7 T^{2} + \cdots + 81 \) Copy content Toggle raw display
$83$ \( T^{3} + 5 T^{2} + \cdots + 531 \) Copy content Toggle raw display
$89$ \( T^{3} + 4 T^{2} + \cdots + 99 \) Copy content Toggle raw display
$97$ \( T^{3} + 23 T^{2} + \cdots - 101 \) Copy content Toggle raw display
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