Properties

Label 8208.2.a.bh
Level $8208$
Weight $2$
Character orbit 8208.a
Self dual yes
Analytic conductor $65.541$
Analytic rank $0$
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,-3,0,3,0,0,0,0] 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: \(0\)
Dimension: \(3\)
Coefficient field: \(\Q(\zeta_{18})^+\)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{3} - 3x - 1 \) 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.

\(f(q)\) \(=\) \( q + (\beta_1 - 1) q^{5} + (\beta_{2} + \beta_1 + 1) q^{7} + ( - 3 \beta_{2} + 3 \beta_1) q^{11} + ( - 3 \beta_{2} + 3 \beta_1 - 1) q^{13} + ( - 2 \beta_1 - 1) q^{17} - q^{19} + (\beta_1 + 5) q^{23} + (\beta_{2} - 2 \beta_1 - 2) q^{25}+ \cdots + ( - 5 \beta_{2} + 4 \beta_1 - 1) q^{97}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 3 q - 3 q^{5} + 3 q^{7} - 3 q^{13} - 3 q^{17} - 3 q^{19} + 15 q^{23} - 6 q^{25} - 6 q^{29} - 6 q^{31} + 6 q^{35} - 3 q^{37} - 3 q^{41} + 3 q^{43} + 15 q^{47} - 6 q^{53} + 9 q^{55} + 21 q^{59} - 21 q^{61}+ \cdots - 3 q^{97}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of \(\nu = \zeta_{18} + \zeta_{18}^{-1}\):

\(\beta_{1}\)\(=\) \( \nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( \nu^{2} - 2 \) Copy content Toggle raw display
\(\nu\)\(=\) \( \beta_1 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( \beta_{2} + 2 \) 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
−1.53209
−0.347296
1.87939
0 0 0 −2.53209 0 −0.184793 0 0 0
1.2 0 0 0 −1.34730 0 −1.22668 0 0 0
1.3 0 0 0 0.879385 0 4.41147 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.bh 3
3.b odd 2 1 8208.2.a.bn 3
4.b odd 2 1 513.2.a.d 3
12.b even 2 1 513.2.a.g yes 3
76.d even 2 1 9747.2.a.bc 3
228.b odd 2 1 9747.2.a.w 3
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
513.2.a.d 3 4.b odd 2 1
513.2.a.g yes 3 12.b even 2 1
8208.2.a.bh 3 1.a even 1 1 trivial
8208.2.a.bn 3 3.b odd 2 1
9747.2.a.w 3 228.b odd 2 1
9747.2.a.bc 3 76.d even 2 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(\Gamma_0(8208))\):

\( T_{5}^{3} + 3T_{5}^{2} - 3 \) Copy content Toggle raw display
\( T_{7}^{3} - 3T_{7}^{2} - 6T_{7} - 1 \) Copy content Toggle raw display
\( T_{11}^{3} - 27T_{11} + 27 \) 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
$5$ \( T^{3} + 3T^{2} - 3 \) Copy content Toggle raw display
$7$ \( T^{3} - 3 T^{2} + \cdots - 1 \) Copy content Toggle raw display
$11$ \( T^{3} - 27T + 27 \) Copy content Toggle raw display
$13$ \( T^{3} + 3 T^{2} + \cdots + 1 \) Copy content Toggle raw display
$17$ \( T^{3} + 3 T^{2} + \cdots - 3 \) Copy content Toggle raw display
$19$ \( (T + 1)^{3} \) Copy content Toggle raw display
$23$ \( T^{3} - 15 T^{2} + \cdots - 111 \) Copy content Toggle raw display
$29$ \( T^{3} + 6 T^{2} + \cdots + 3 \) Copy content Toggle raw display
$31$ \( T^{3} + 6 T^{2} + \cdots - 289 \) Copy content Toggle raw display
$37$ \( T^{3} + 3 T^{2} + \cdots + 1 \) Copy content Toggle raw display
$41$ \( T^{3} + 3 T^{2} + \cdots - 489 \) Copy content Toggle raw display
$43$ \( T^{3} - 3 T^{2} + \cdots - 163 \) Copy content Toggle raw display
$47$ \( T^{3} - 15 T^{2} + \cdots + 591 \) Copy content Toggle raw display
$53$ \( T^{3} + 6 T^{2} + \cdots - 51 \) Copy content Toggle raw display
$59$ \( T^{3} - 21 T^{2} + \cdots - 213 \) Copy content Toggle raw display
$61$ \( T^{3} + 21 T^{2} + \cdots + 181 \) Copy content Toggle raw display
$67$ \( T^{3} + 6 T^{2} + \cdots - 19 \) Copy content Toggle raw display
$71$ \( T^{3} - 12 T^{2} + \cdots + 57 \) Copy content Toggle raw display
$73$ \( T^{3} + 3 T^{2} + \cdots + 109 \) Copy content Toggle raw display
$79$ \( T^{3} - 21 T^{2} + \cdots - 181 \) Copy content Toggle raw display
$83$ \( T^{3} - 9 T^{2} + \cdots + 513 \) Copy content Toggle raw display
$89$ \( T^{3} - 12 T^{2} + \cdots + 327 \) Copy content Toggle raw display
$97$ \( T^{3} + 3 T^{2} + \cdots - 71 \) Copy content Toggle raw display
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