Properties

Label 9280.2.a.cs
Level $9280$
Weight $2$
Character orbit 9280.a
Self dual yes
Analytic conductor $74.101$
Analytic rank $1$
Dimension $8$
Inner twists $2$

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Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [9280,2,Mod(1,9280)] 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("9280.1"); S:= CuspForms(chi, 2); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(9280, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0, 0, 0, 0])) N = Newforms(chi, 2, names="a")
 
Level: \( N \) \(=\) \( 9280 = 2^{6} \cdot 5 \cdot 29 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 9280.a (trivial)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [8,0,0,0,-8,0,0,0,6,0,0,0,-6,0,0,0,2,0,0,0,-24] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(21)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: yes
Analytic conductor: \(74.1011730757\)
Analytic rank: \(1\)
Dimension: \(8\)
Coefficient field: \(\mathbb{Q}[x]/(x^{8} - \cdots)\)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{8} - 15x^{6} + 57x^{4} - 40x^{2} + 4 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{17}]\)
Coefficient ring index: \( 2^{3} \)
Twist minimal: no (minimal twist has level 4640)
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 \(1,\beta_1,\ldots,\beta_{7}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + \beta_1 q^{3} - q^{5} + ( - \beta_{5} - \beta_1) q^{7} + (\beta_{2} + 1) q^{9} + ( - \beta_{7} + \beta_1) q^{11} + (\beta_{4} - \beta_{3} - 1) q^{13} - \beta_1 q^{15} - \beta_{4} q^{17} + ( - \beta_{6} + \beta_{5}) q^{19}+ \cdots + (3 \beta_{7} - \beta_1) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q - 8 q^{5} + 6 q^{9} - 6 q^{13} + 2 q^{17} - 24 q^{21} + 8 q^{25} + 8 q^{29} + 16 q^{33} - 16 q^{37} + 12 q^{41} - 6 q^{45} + 14 q^{49} - 10 q^{53} - 4 q^{57} - 34 q^{61} + 6 q^{65} - 30 q^{69} + 10 q^{73}+ \cdots + 14 q^{97}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{8} - 15x^{6} + 57x^{4} - 40x^{2} + 4 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( \nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( \nu^{2} - 4 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( \nu^{6} - 17\nu^{4} + 75\nu^{2} - 46 ) / 8 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( 3\nu^{6} - 43\nu^{4} + 145\nu^{2} - 50 ) / 8 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( 3\nu^{7} - 43\nu^{5} + 145\nu^{3} - 50\nu ) / 8 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( -\nu^{7} + 15\nu^{5} - 55\nu^{3} + 24\nu ) / 2 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( \nu^{7} - 15\nu^{5} + 57\nu^{3} - 38\nu ) / 2 \) Copy content Toggle raw display
\(\nu\)\(=\) \( \beta_1 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( \beta_{2} + 4 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( \beta_{7} + \beta_{6} + 7\beta_1 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( \beta_{4} - 3\beta_{3} + 10\beta_{2} + 29 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( 10\beta_{7} + 13\beta_{6} + 4\beta_{5} + 59\beta_1 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( 17\beta_{4} - 43\beta_{3} + 95\beta_{2} + 239 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( 95\beta_{7} + 138\beta_{6} + 60\beta_{5} + 524\beta_1 \) 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
−3.06013
−2.18361
−0.864680
−0.346147
0.346147
0.864680
2.18361
3.06013
0 −3.06013 0 −1.00000 0 3.30028 0 6.36437 0
1.2 0 −2.18361 0 −1.00000 0 −0.823765 0 1.76814 0
1.3 0 −0.864680 0 −1.00000 0 4.71561 0 −2.25233 0
1.4 0 −0.346147 0 −1.00000 0 −1.09203 0 −2.88018 0
1.5 0 0.346147 0 −1.00000 0 1.09203 0 −2.88018 0
1.6 0 0.864680 0 −1.00000 0 −4.71561 0 −2.25233 0
1.7 0 2.18361 0 −1.00000 0 0.823765 0 1.76814 0
1.8 0 3.06013 0 −1.00000 0 −3.30028 0 6.36437 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 1.8
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(2\) \( -1 \)
\(5\) \( +1 \)
\(29\) \( -1 \)

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
4.b odd 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 9280.2.a.cs 8
4.b odd 2 1 inner 9280.2.a.cs 8
8.b even 2 1 4640.2.a.y 8
8.d odd 2 1 4640.2.a.y 8
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
4640.2.a.y 8 8.b even 2 1
4640.2.a.y 8 8.d odd 2 1
9280.2.a.cs 8 1.a even 1 1 trivial
9280.2.a.cs 8 4.b odd 2 1 inner

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(\Gamma_0(9280))\):

\( T_{3}^{8} - 15T_{3}^{6} + 57T_{3}^{4} - 40T_{3}^{2} + 4 \) Copy content Toggle raw display
\( T_{7}^{8} - 35T_{7}^{6} + 305T_{7}^{4} - 480T_{7}^{2} + 196 \) Copy content Toggle raw display
\( T_{11}^{8} - 40T_{11}^{6} + 228T_{11}^{4} - 240T_{11}^{2} + 64 \) Copy content Toggle raw display
\( T_{13}^{4} + 3T_{13}^{3} - 23T_{13}^{2} + 4T_{13} + 8 \) Copy content Toggle raw display
\( T_{19}^{8} - 112T_{19}^{6} + 3940T_{19}^{4} - 54704T_{19}^{2} + 254016 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{8} \) Copy content Toggle raw display
$3$ \( T^{8} - 15 T^{6} + \cdots + 4 \) Copy content Toggle raw display
$5$ \( (T + 1)^{8} \) Copy content Toggle raw display
$7$ \( T^{8} - 35 T^{6} + \cdots + 196 \) Copy content Toggle raw display
$11$ \( T^{8} - 40 T^{6} + \cdots + 64 \) Copy content Toggle raw display
$13$ \( (T^{4} + 3 T^{3} - 23 T^{2} + \cdots + 8)^{2} \) Copy content Toggle raw display
$17$ \( (T^{4} - T^{3} - 19 T^{2} + \cdots + 2)^{2} \) Copy content Toggle raw display
$19$ \( T^{8} - 112 T^{6} + \cdots + 254016 \) Copy content Toggle raw display
$23$ \( T^{8} - 15 T^{6} + \cdots + 4 \) Copy content Toggle raw display
$29$ \( (T - 1)^{8} \) Copy content Toggle raw display
$31$ \( T^{8} - 167 T^{6} + \cdots + 142884 \) Copy content Toggle raw display
$37$ \( (T^{4} + 8 T^{3} + \cdots - 392)^{2} \) Copy content Toggle raw display
$41$ \( (T^{4} - 6 T^{3} + \cdots - 416)^{2} \) Copy content Toggle raw display
$43$ \( T^{8} - 211 T^{6} + \cdots + 1028196 \) Copy content Toggle raw display
$47$ \( T^{8} - 188 T^{6} + \cdots + 746496 \) Copy content Toggle raw display
$53$ \( (T^{4} + 5 T^{3} + \cdots + 744)^{2} \) Copy content Toggle raw display
$59$ \( T^{8} - 135 T^{6} + \cdots + 784 \) Copy content Toggle raw display
$61$ \( (T^{4} + 17 T^{3} + \cdots - 976)^{2} \) Copy content Toggle raw display
$67$ \( T^{8} - 444 T^{6} + \cdots + 29246464 \) Copy content Toggle raw display
$71$ \( T^{8} - 144 T^{6} + \cdots + 200704 \) Copy content Toggle raw display
$73$ \( (T^{4} - 5 T^{3} + \cdots + 1434)^{2} \) Copy content Toggle raw display
$79$ \( T^{8} - 131 T^{6} + \cdots + 217156 \) Copy content Toggle raw display
$83$ \( T^{8} - 320 T^{6} + \cdots + 652864 \) Copy content Toggle raw display
$89$ \( (T^{4} + 10 T^{3} + \cdots - 1456)^{2} \) Copy content Toggle raw display
$97$ \( (T^{4} - 7 T^{3} + \cdots + 5098)^{2} \) Copy content Toggle raw display
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