Properties

Label 546.8.a.d
Level $546$
Weight $8$
Character orbit 546.a
Self dual yes
Analytic conductor $170.562$
Analytic rank $1$
Dimension $3$
CM no
Inner twists $1$

Related objects

Downloads

Learn more

Show commands: Magma / Pari/GP / SageMath

Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [546,8,Mod(1,546)] 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("546.1"); S:= CuspForms(chi, 8); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(546, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0, 0, 0])) N = Newforms(chi, 8, names="a")
 
Level: \( N \) \(=\) \( 546 = 2 \cdot 3 \cdot 7 \cdot 13 \)
Weight: \( k \) \(=\) \( 8 \)
Character orbit: \([\chi]\) \(=\) 546.a (trivial)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [3,24,-81,192,351] 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: \(170.562223914\)
Analytic rank: \(1\)
Dimension: \(3\)
Coefficient field: \(\mathbb{Q}[x]/(x^{3} - \cdots)\)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{3} - x^{2} - 3417x + 10260 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{17}]\)
Coefficient ring index: \( 2^{2}\cdot 3^{2} \)
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 \(1,\beta_1,\beta_2\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + 8 q^{2} - 27 q^{3} + 64 q^{4} + (\beta_1 + 117) q^{5} - 216 q^{6} + 343 q^{7} + 512 q^{8} + 729 q^{9} + (8 \beta_1 + 936) q^{10} + ( - 2 \beta_{2} + 4 \beta_1 - 1826) q^{11} - 1728 q^{12} + 2197 q^{13}+ \cdots + ( - 1458 \beta_{2} + 2916 \beta_1 - 1331154) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 3 q + 24 q^{2} - 81 q^{3} + 192 q^{4} + 351 q^{5} - 648 q^{6} + 1029 q^{7} + 1536 q^{8} + 2187 q^{9} + 2808 q^{10} - 5478 q^{11} - 5184 q^{12} + 6591 q^{13} + 8232 q^{14} - 9477 q^{15} + 12288 q^{16} - 27012 q^{17}+ \cdots - 3993462 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{3} - x^{2} - 3417x + 10260 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( \nu^{2} - 13\nu - 2274 ) / 7 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( \nu^{2} + 71\nu - 2302 ) / 7 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_{2} - \beta _1 + 4 ) / 12 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( 13\beta_{2} + 71\beta _1 + 27340 ) / 12 \) 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
3.00795
57.4081
−59.4160
8.00000 −27.0000 64.0000 −212.151 −216.000 343.000 512.000 729.000 −1697.21
1.2 8.00000 −27.0000 64.0000 156.340 −216.000 343.000 512.000 729.000 1250.72
1.3 8.00000 −27.0000 64.0000 406.810 −216.000 343.000 512.000 729.000 3254.48
\(n\): e.g. 2-40 or 80-90
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(2\) \( -1 \)
\(3\) \( +1 \)
\(7\) \( -1 \)
\(13\) \( -1 \)

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 546.8.a.d 3
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
546.8.a.d 3 1.a even 1 1 trivial

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{5}^{3} - 351T_{5}^{2} - 55872T_{5} + 13492980 \) acting on \(S_{8}^{\mathrm{new}}(\Gamma_0(546))\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( (T - 8)^{3} \) Copy content Toggle raw display
$3$ \( (T + 27)^{3} \) Copy content Toggle raw display
$5$ \( T^{3} - 351 T^{2} + \cdots + 13492980 \) Copy content Toggle raw display
$7$ \( (T - 343)^{3} \) Copy content Toggle raw display
$11$ \( T^{3} + \cdots - 1490327424 \) Copy content Toggle raw display
$13$ \( (T - 2197)^{3} \) Copy content Toggle raw display
$17$ \( T^{3} + \cdots - 10078817461200 \) Copy content Toggle raw display
$19$ \( T^{3} + \cdots - 7940611216688 \) Copy content Toggle raw display
$23$ \( T^{3} + \cdots - 91724659215984 \) Copy content Toggle raw display
$29$ \( T^{3} + \cdots + 309834203001300 \) Copy content Toggle raw display
$31$ \( T^{3} + \cdots - 13\!\cdots\!00 \) Copy content Toggle raw display
$37$ \( T^{3} + \cdots + 14\!\cdots\!40 \) Copy content Toggle raw display
$41$ \( T^{3} + \cdots - 98\!\cdots\!00 \) Copy content Toggle raw display
$43$ \( T^{3} + \cdots - 31\!\cdots\!84 \) Copy content Toggle raw display
$47$ \( T^{3} + \cdots - 81\!\cdots\!08 \) Copy content Toggle raw display
$53$ \( T^{3} + \cdots - 10\!\cdots\!80 \) Copy content Toggle raw display
$59$ \( T^{3} + \cdots + 19\!\cdots\!00 \) Copy content Toggle raw display
$61$ \( T^{3} + \cdots + 89\!\cdots\!20 \) Copy content Toggle raw display
$67$ \( T^{3} + \cdots + 30\!\cdots\!60 \) Copy content Toggle raw display
$71$ \( T^{3} + \cdots + 27\!\cdots\!80 \) Copy content Toggle raw display
$73$ \( T^{3} + \cdots + 22\!\cdots\!00 \) Copy content Toggle raw display
$79$ \( T^{3} + \cdots + 47\!\cdots\!56 \) Copy content Toggle raw display
$83$ \( T^{3} + \cdots - 10\!\cdots\!16 \) Copy content Toggle raw display
$89$ \( T^{3} + \cdots - 34\!\cdots\!08 \) Copy content Toggle raw display
$97$ \( T^{3} + \cdots + 43\!\cdots\!88 \) Copy content Toggle raw display
show more
show less