Properties

Label 9.16.a.a
Level $9$
Weight $16$
Character orbit 9.a
Self dual yes
Analytic conductor $12.842$
Analytic rank $1$
Dimension $1$
CM no
Inner twists $1$

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Show commands: Magma / Pari/GP / SageMath

Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [9,16,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, 16); 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, 16, names="a")
 
Level: \( N \) \(=\) \( 9 = 3^{2} \)
Weight: \( k \) \(=\) \( 16 \)
Character orbit: \([\chi]\) \(=\) 9.a (trivial)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [1,-216] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(2)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: yes
Analytic conductor: \(12.8424154590\)
Analytic rank: \(1\)
Dimension: \(1\)
Coefficient field: \(\mathbb{Q}\)
Coefficient ring: \(\mathbb{Z}\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 1)
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)
 
\(f(q)\) \(=\) \( q - 216 q^{2} + 13888 q^{4} - 52110 q^{5} + 2822456 q^{7} + 4078080 q^{8} + 11255760 q^{10} - 20586852 q^{11} - 190073338 q^{13} - 609650496 q^{14} - 1335947264 q^{16} - 1646527986 q^{17} + 1563257180 q^{19}+ \cdots - 695238414190488 q^{98}+O(q^{100}) \) 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
0
−216.000 0 13888.0 −52110.0 0 2.82246e6 4.07808e6 0 1.12558e7
\(n\): e.g. 2-40 or 990-1000
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 9.16.a.a 1
3.b odd 2 1 1.16.a.a 1
4.b odd 2 1 144.16.a.f 1
12.b even 2 1 16.16.a.d 1
15.d odd 2 1 25.16.a.a 1
15.e even 4 2 25.16.b.a 2
21.c even 2 1 49.16.a.a 1
21.g even 6 2 49.16.c.b 2
21.h odd 6 2 49.16.c.c 2
24.f even 2 1 64.16.a.c 1
24.h odd 2 1 64.16.a.i 1
33.d even 2 1 121.16.a.a 1
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
1.16.a.a 1 3.b odd 2 1
9.16.a.a 1 1.a even 1 1 trivial
16.16.a.d 1 12.b even 2 1
25.16.a.a 1 15.d odd 2 1
25.16.b.a 2 15.e even 4 2
49.16.a.a 1 21.c even 2 1
49.16.c.b 2 21.g even 6 2
49.16.c.c 2 21.h odd 6 2
64.16.a.c 1 24.f even 2 1
64.16.a.i 1 24.h odd 2 1
121.16.a.a 1 33.d even 2 1
144.16.a.f 1 4.b odd 2 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{2} + 216 \) acting on \(S_{16}^{\mathrm{new}}(\Gamma_0(9))\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T + 216 \) Copy content Toggle raw display
$3$ \( T \) Copy content Toggle raw display
$5$ \( T + 52110 \) Copy content Toggle raw display
$7$ \( T - 2822456 \) Copy content Toggle raw display
$11$ \( T + 20586852 \) Copy content Toggle raw display
$13$ \( T + 190073338 \) Copy content Toggle raw display
$17$ \( T + 1646527986 \) Copy content Toggle raw display
$19$ \( T - 1563257180 \) Copy content Toggle raw display
$23$ \( T + 9451116072 \) Copy content Toggle raw display
$29$ \( T - 36902568330 \) Copy content Toggle raw display
$31$ \( T - 71588483552 \) Copy content Toggle raw display
$37$ \( T + 1033652081554 \) Copy content Toggle raw display
$41$ \( T + 1641974018202 \) Copy content Toggle raw display
$43$ \( T + 492403109308 \) Copy content Toggle raw display
$47$ \( T - 3410684952624 \) Copy content Toggle raw display
$53$ \( T + 6797151655902 \) Copy content Toggle raw display
$59$ \( T + 9858856815540 \) Copy content Toggle raw display
$61$ \( T - 4931842626902 \) Copy content Toggle raw display
$67$ \( T + 28837826625364 \) Copy content Toggle raw display
$71$ \( T + 125050114914552 \) Copy content Toggle raw display
$73$ \( T + 82171455513478 \) Copy content Toggle raw display
$79$ \( T + 25413078694480 \) Copy content Toggle raw display
$83$ \( T - 281736730890468 \) Copy content Toggle raw display
$89$ \( T + 715618564776810 \) Copy content Toggle raw display
$97$ \( T - 612786136081826 \) Copy content Toggle raw display
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