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Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [7406,2,Mod(1,7406)] 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("7406.1"); S:= CuspForms(chi, 2); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(7406, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0, 0])) N = Newforms(chi, 2, names="a")
 
Level: \( N \) \(=\) \( 7406 = 2 \cdot 7 \cdot 23^{2} \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 7406.a (trivial)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [6,6,2,6,4,2,6] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(7)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: yes
Analytic conductor: \(59.1372077370\)
Analytic rank: \(0\)
Dimension: \(6\)
Coefficient field: 6.6.84770496.1
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{6} - 2x^{5} - 10x^{4} + 24x^{3} + 6x^{2} - 28x + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{17}]\)
Coefficient ring index: \( 1 \)
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 \(1,\beta_1,\ldots,\beta_{5}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + q^{2} + \beta_1 q^{3} + q^{4} + (\beta_{4} + 1) q^{5} + \beta_1 q^{6} + q^{7} + q^{8} + (\beta_{4} + \beta_{3} + 1) q^{9} + (\beta_{4} + 1) q^{10} + ( - \beta_1 + 3) q^{11} + \beta_1 q^{12} + (\beta_{5} - \beta_{3}) q^{13}+ \cdots + ( - \beta_{5} + 5 \beta_{4} + 3 \beta_{3} + \cdots + 7) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 6 q + 6 q^{2} + 2 q^{3} + 6 q^{4} + 4 q^{5} + 2 q^{6} + 6 q^{7} + 6 q^{8} + 6 q^{9} + 4 q^{10} + 16 q^{11} + 2 q^{12} + 6 q^{14} + 6 q^{16} + 2 q^{17} + 6 q^{18} + 18 q^{19} + 4 q^{20} + 2 q^{21} + 16 q^{22}+ \cdots + 28 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{6} - 2x^{5} - 10x^{4} + 24x^{3} + 6x^{2} - 28x + 1 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( \nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( \nu^{5} + \nu^{4} - 9\nu^{3} - 3\nu^{2} + 13\nu + 3 ) / 2 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( -\nu^{5} + 10\nu^{3} - 4\nu^{2} - 15\nu \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( \nu^{5} - 10\nu^{3} + 5\nu^{2} + 15\nu - 4 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( 2\nu^{5} - 19\nu^{3} + 10\nu^{2} + 23\nu - 4 \) Copy content Toggle raw display
\(\nu\)\(=\) \( \beta_1 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( \beta_{4} + \beta_{3} + 4 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( \beta_{5} - 2\beta_{4} + 7\beta _1 - 4 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( -\beta_{5} + 9\beta_{4} + 8\beta_{3} + 2\beta_{2} - 5\beta _1 + 29 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( 10\beta_{5} - 24\beta_{4} - 5\beta_{3} + 55\beta _1 - 56 \) 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
−3.13793
−1.06455
0.0360320
1.58560
2.21099
2.36985
1.00000 −3.13793 1.00000 3.90332 −3.13793 1.00000 1.00000 6.84662 3.90332
1.2 1.00000 −1.06455 1.00000 −2.60497 −1.06455 1.00000 1.00000 −1.86674 −2.60497
1.3 1.00000 0.0360320 1.00000 −2.45350 0.0360320 1.00000 1.00000 −2.99870 −2.45350
1.4 1.00000 1.58560 1.00000 3.51290 1.58560 1.00000 1.00000 −0.485859 3.51290
1.5 1.00000 2.21099 1.00000 −0.639974 2.21099 1.00000 1.00000 1.88850 −0.639974
1.6 1.00000 2.36985 1.00000 2.28223 2.36985 1.00000 1.00000 2.61619 2.28223
\(n\): e.g. 2-40 or 80-90
Embeddings: e.g. 1-3 or 1.6
Significant digits:
Format:

Atkin-Lehner signs

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

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 7406.2.a.bl yes 6
23.b odd 2 1 7406.2.a.bk 6
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
7406.2.a.bk 6 23.b odd 2 1
7406.2.a.bl yes 6 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 \(S_{2}^{\mathrm{new}}(\Gamma_0(7406))\):

\( T_{3}^{6} - 2T_{3}^{5} - 10T_{3}^{4} + 24T_{3}^{3} + 6T_{3}^{2} - 28T_{3} + 1 \) Copy content Toggle raw display
\( T_{5}^{6} - 4T_{5}^{5} - 15T_{5}^{4} + 54T_{5}^{3} + 77T_{5}^{2} - 176T_{5} - 128 \) Copy content Toggle raw display
\( T_{11}^{6} - 16T_{11}^{5} + 95T_{11}^{4} - 264T_{11}^{3} + 357T_{11}^{2} - 224T_{11} + 52 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( (T - 1)^{6} \) Copy content Toggle raw display
$3$ \( T^{6} - 2 T^{5} + \cdots + 1 \) Copy content Toggle raw display
$5$ \( T^{6} - 4 T^{5} + \cdots - 128 \) Copy content Toggle raw display
$7$ \( (T - 1)^{6} \) Copy content Toggle raw display
$11$ \( T^{6} - 16 T^{5} + \cdots + 52 \) Copy content Toggle raw display
$13$ \( T^{6} - 51 T^{4} + \cdots - 1404 \) Copy content Toggle raw display
$17$ \( T^{6} - 2 T^{5} + \cdots + 1417 \) Copy content Toggle raw display
$19$ \( T^{6} - 18 T^{5} + \cdots - 431 \) Copy content Toggle raw display
$23$ \( T^{6} \) Copy content Toggle raw display
$29$ \( T^{6} - 4 T^{5} + \cdots + 256 \) Copy content Toggle raw display
$31$ \( T^{6} + 2 T^{5} + \cdots - 18716 \) Copy content Toggle raw display
$37$ \( T^{6} - 4 T^{5} + \cdots + 10816 \) Copy content Toggle raw display
$41$ \( T^{6} - 107 T^{4} + \cdots + 4084 \) Copy content Toggle raw display
$43$ \( T^{6} - 8 T^{5} + \cdots - 1067 \) Copy content Toggle raw display
$47$ \( T^{6} - 8 T^{5} + \cdots + 10816 \) Copy content Toggle raw display
$53$ \( T^{6} + 8 T^{5} + \cdots - 62912 \) Copy content Toggle raw display
$59$ \( T^{6} - 2 T^{5} + \cdots - 368 \) Copy content Toggle raw display
$61$ \( T^{6} - 28 T^{5} + \cdots + 10816 \) Copy content Toggle raw display
$67$ \( T^{6} - 16 T^{5} + \cdots + 2704 \) Copy content Toggle raw display
$71$ \( T^{6} + 10 T^{5} + \cdots + 192148 \) Copy content Toggle raw display
$73$ \( T^{6} + 28 T^{5} + \cdots - 9683 \) Copy content Toggle raw display
$79$ \( T^{6} - 16 T^{5} + \cdots + 180304 \) Copy content Toggle raw display
$83$ \( T^{6} - 24 T^{5} + \cdots + 158041 \) Copy content Toggle raw display
$89$ \( T^{6} + 46 T^{5} + \cdots + 14992 \) Copy content Toggle raw display
$97$ \( T^{6} - 2 T^{5} + \cdots + 349456 \) Copy content Toggle raw display
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