Properties

Label 4830.2.a.ce
Level $4830$
Weight $2$
Character orbit 4830.a
Self dual yes
Analytic conductor $38.568$
Analytic rank $0$
Dimension $4$
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] = [4830,2,Mod(1,4830)] mf = mfinit([N,k,chi],0) lf = mfeigenbasis(mf)
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(4830, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0, 0, 0, 0])) N = Newforms(chi, 2, names="a")
 
Copy content magma://Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code chi := DirichletCharacter("4830.1"); S:= CuspForms(chi, 2); N := Newforms(S);
 
Level: \( N \) \(=\) \( 4830 = 2 \cdot 3 \cdot 5 \cdot 7 \cdot 23 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 4830.a (trivial)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [4,4,4,4,4,4,4,4,4,4,0,4,2,4,4,4,-2] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(17)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: yes
Analytic conductor: \(38.5677441763\)
Analytic rank: \(0\)
Dimension: \(4\)
Coefficient field: 4.4.6809.1
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{4} - 5x^{2} - x + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{29}]\)
Coefficient ring index: \( 2^{3} \)
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 \(1,\beta_1,\beta_2,\beta_3\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + q^{2} + q^{3} + q^{4} + q^{5} + q^{6} + q^{7} + q^{8} + q^{9} + q^{10} + \beta_1 q^{11} + q^{12} + ( - \beta_{3} - \beta_1 + 1) q^{13} + q^{14} + q^{15} + q^{16} + (\beta_{3} - 1) q^{17}+ \cdots + \beta_1 q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 4 q + 4 q^{2} + 4 q^{3} + 4 q^{4} + 4 q^{5} + 4 q^{6} + 4 q^{7} + 4 q^{8} + 4 q^{9} + 4 q^{10} + 4 q^{12} + 2 q^{13} + 4 q^{14} + 4 q^{15} + 4 q^{16} - 2 q^{17} + 4 q^{18} + 6 q^{19} + 4 q^{20} + 4 q^{21}+ \cdots + 4 q^{98}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{4} - 5x^{2} - x + 1 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( 2\nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( 2\nu^{2} - 5 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( 2\nu^{3} - 10\nu - 1 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_1 ) / 2 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( \beta_{2} + 5 ) / 2 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( \beta_{3} + 5\beta _1 + 1 ) / 2 \) 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
−2.06963
−0.582772
0.361989
2.29041
1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000
1.2 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000
1.3 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000
1.4 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000 1.00000
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(2\) \( -1 \)
\(3\) \( -1 \)
\(5\) \( -1 \)
\(7\) \( -1 \)
\(23\) \( -1 \)

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 4830.2.a.ce 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
4830.2.a.ce 4 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 \(S_{2}^{\mathrm{new}}(\Gamma_0(4830))\):

\( T_{11}^{4} - 20T_{11}^{2} - 8T_{11} + 16 \) Copy content Toggle raw display
\( T_{13}^{4} - 2T_{13}^{3} - 24T_{13}^{2} + 24T_{13} + 128 \) Copy content Toggle raw display
\( T_{17}^{4} + 2T_{17}^{3} - 20T_{17}^{2} + 16 \) Copy content Toggle raw display
\( T_{19}^{4} - 6T_{19}^{3} - 8T_{19}^{2} + 72T_{19} - 64 \) Copy content Toggle raw display
\( T_{29}^{4} - 14T_{29}^{3} + 20T_{29}^{2} + 320T_{29} - 944 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( (T - 1)^{4} \) Copy content Toggle raw display
$3$ \( (T - 1)^{4} \) Copy content Toggle raw display
$5$ \( (T - 1)^{4} \) Copy content Toggle raw display
$7$ \( (T - 1)^{4} \) Copy content Toggle raw display
$11$ \( T^{4} - 20 T^{2} + \cdots + 16 \) Copy content Toggle raw display
$13$ \( T^{4} - 2 T^{3} + \cdots + 128 \) Copy content Toggle raw display
$17$ \( T^{4} + 2 T^{3} + \cdots + 16 \) Copy content Toggle raw display
$19$ \( T^{4} - 6 T^{3} + \cdots - 64 \) Copy content Toggle raw display
$23$ \( (T - 1)^{4} \) Copy content Toggle raw display
$29$ \( T^{4} - 14 T^{3} + \cdots - 944 \) Copy content Toggle raw display
$31$ \( T^{4} + 4 T^{3} + \cdots - 16 \) Copy content Toggle raw display
$37$ \( T^{4} - 6 T^{3} + \cdots - 64 \) Copy content Toggle raw display
$41$ \( T^{4} - 168 T^{2} + \cdots + 6416 \) Copy content Toggle raw display
$43$ \( T^{4} - 10 T^{3} + \cdots - 1408 \) Copy content Toggle raw display
$47$ \( T^{4} - 10 T^{3} + \cdots - 320 \) Copy content Toggle raw display
$53$ \( T^{4} - 10 T^{3} + \cdots - 928 \) Copy content Toggle raw display
$59$ \( T^{4} - 14 T^{3} + \cdots - 1024 \) Copy content Toggle raw display
$61$ \( T^{4} - 4 T^{3} + \cdots + 2032 \) Copy content Toggle raw display
$67$ \( T^{4} + 10 T^{3} + \cdots - 32 \) Copy content Toggle raw display
$71$ \( T^{4} - 14 T^{3} + \cdots + 128 \) Copy content Toggle raw display
$73$ \( T^{4} + 6 T^{3} + \cdots - 160 \) Copy content Toggle raw display
$79$ \( T^{4} + 2 T^{3} + \cdots - 128 \) Copy content Toggle raw display
$83$ \( T^{4} - 6 T^{3} + \cdots + 3488 \) Copy content Toggle raw display
$89$ \( T^{4} + 8 T^{3} + \cdots + 848 \) Copy content Toggle raw display
$97$ \( T^{4} - 8 T^{3} + \cdots - 1616 \) Copy content Toggle raw display
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