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Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [9,26,Mod(1,9)] 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("9.1"); S:= CuspForms(chi, 26); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(9, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0])) N = Newforms(chi, 26, names="a")
 
Level: \( N \) \(=\) \( 9 = 3^{2} \)
Weight: \( k \) \(=\) \( 26 \)
Character orbit: \([\chi]\) \(=\) 9.a (trivial)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [3] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(1)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: yes
Analytic conductor: \(35.6397101957\)
Analytic rank: \(0\)
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: \( x^{3} - x^{2} - 783420x + 148321440 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2]\)
Coefficient ring index: \( 2^{6}\cdot 3^{5}\cdot 5^{2} \)
Twist minimal: no (minimal twist has level 3)
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.

\(f(q)\) \(=\) \( q + ( - \beta_1 + 1226) q^{2} + (\beta_{2} - 1499 \beta_1 + 30249196) q^{4} + (12 \beta_{2} - 43676 \beta_1 + 54384250) q^{5} + (676 \beta_{2} + 3973036 \beta_1 - 3207524248) q^{7} + (3678 \beta_{2} - 27346058 \beta_1 + 89337610216) q^{8}+ \cdots + ( - 15\!\cdots\!08 \beta_{2} + \cdots - 80\!\cdots\!50) q^{98}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 3 q + 3678 q^{2} + 90747588 q^{4} + 163152750 q^{5} - 9622572744 q^{7} + 268012830648 q^{8} + 8363188874700 q^{10} + 5946998130780 q^{11} + 248137774407690 q^{13} - 754361641264848 q^{14} + 23\!\cdots\!16 q^{16}+ \cdots - 24\!\cdots\!50 q^{98}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{3} - x^{2} - 783420x + 148321440 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( \nu^{2} + 455\nu - 522432 ) / 42 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( -2227\nu^{2} + 1708315\nu + 1162548864 ) / 42 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_{2} + 2227\beta _1 + 21600 ) / 64800 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( -91\beta_{2} + 341663\beta _1 + 6768753120 ) / 12960 \) 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
768.963
−967.357
199.394
−8744.24 0 4.29073e7 −4.98342e7 0 5.50645e10 −8.17835e10 0 4.35762e11
1.2 1864.10 0 −3.00796e7 −6.53169e8 0 −4.71716e10 −1.18620e11 0 −1.21757e12
1.3 10558.1 0 7.79199e7 8.66156e8 0 −1.75156e10 4.68416e11 0 9.14500e12
\(n\): e.g. 2-40 or 80-90
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(3\) \( -1 \)

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 9.26.a.c 3
3.b odd 2 1 3.26.a.b 3
12.b even 2 1 48.26.a.i 3
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
3.26.a.b 3 3.b odd 2 1
9.26.a.c 3 1.a even 1 1 trivial
48.26.a.i 3 12.b even 2 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{2}^{3} - 3678T_{2}^{2} - 88941600T_{2} + 172099067904 \) acting on \(S_{26}^{\mathrm{new}}(\Gamma_0(9))\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{3} + \cdots + 172099067904 \) Copy content Toggle raw display
$3$ \( T^{3} \) Copy content Toggle raw display
$5$ \( T^{3} + \cdots - 28\!\cdots\!00 \) Copy content Toggle raw display
$7$ \( T^{3} + \cdots - 45\!\cdots\!80 \) Copy content Toggle raw display
$11$ \( T^{3} + \cdots + 18\!\cdots\!84 \) Copy content Toggle raw display
$13$ \( T^{3} + \cdots + 43\!\cdots\!48 \) Copy content Toggle raw display
$17$ \( T^{3} + \cdots + 75\!\cdots\!12 \) Copy content Toggle raw display
$19$ \( T^{3} + \cdots + 12\!\cdots\!00 \) Copy content Toggle raw display
$23$ \( T^{3} + \cdots - 17\!\cdots\!80 \) Copy content Toggle raw display
$29$ \( T^{3} + \cdots - 69\!\cdots\!00 \) Copy content Toggle raw display
$31$ \( T^{3} + \cdots + 15\!\cdots\!00 \) Copy content Toggle raw display
$37$ \( T^{3} + \cdots + 78\!\cdots\!60 \) Copy content Toggle raw display
$41$ \( T^{3} + \cdots + 20\!\cdots\!80 \) Copy content Toggle raw display
$43$ \( T^{3} + \cdots + 18\!\cdots\!44 \) Copy content Toggle raw display
$47$ \( T^{3} + \cdots + 12\!\cdots\!28 \) Copy content Toggle raw display
$53$ \( T^{3} + \cdots + 14\!\cdots\!80 \) Copy content Toggle raw display
$59$ \( T^{3} + \cdots + 28\!\cdots\!00 \) Copy content Toggle raw display
$61$ \( T^{3} + \cdots + 16\!\cdots\!48 \) Copy content Toggle raw display
$67$ \( T^{3} + \cdots + 19\!\cdots\!88 \) Copy content Toggle raw display
$71$ \( T^{3} + \cdots + 19\!\cdots\!28 \) Copy content Toggle raw display
$73$ \( T^{3} + \cdots - 36\!\cdots\!00 \) Copy content Toggle raw display
$79$ \( T^{3} + \cdots - 90\!\cdots\!00 \) Copy content Toggle raw display
$83$ \( T^{3} + \cdots - 45\!\cdots\!72 \) Copy content Toggle raw display
$89$ \( T^{3} + \cdots + 44\!\cdots\!00 \) Copy content Toggle raw display
$97$ \( T^{3} + \cdots - 69\!\cdots\!52 \) Copy content Toggle raw display
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