Show commands: Magma / Pari/GP / SageMath

Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [441,8,Mod(1,441)] 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("441.1"); S:= CuspForms(chi, 8); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(441, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0, 0])) N = Newforms(chi, 8, names="a")
 
Level: \( N \) \(=\) \( 441 = 3^{2} \cdot 7^{2} \)
Weight: \( k \) \(=\) \( 8 \)
Character orbit: \([\chi]\) \(=\) 441.a (trivial)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [1,-6,0,-92,390,0,0,1320,0,-2340,948,0,5098] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(13)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: yes
Analytic conductor: \(137.761796238\)
Analytic rank: \(0\)
Dimension: \(1\)
Coefficient field: \(\mathbb{Q}\)
Coefficient ring: \(\mathbb{Z}\)
Coefficient ring index: \( 1 \)
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)
 
\(f(q)\) \(=\) \( q - 6 q^{2} - 92 q^{4} + 390 q^{5} + 1320 q^{8} - 2340 q^{10} + 948 q^{11} + 5098 q^{13} + 3856 q^{16} + 28386 q^{17} + 8620 q^{19} - 35880 q^{20} - 5688 q^{22} + 15288 q^{23} + 73975 q^{25} - 30588 q^{26}+ \cdots + 8826814 q^{97}+O(q^{100}) \) 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
−6.00000 0 −92.0000 390.000 0 0 1320.00 0 −2340.00
\(n\): e.g. 2-40 or 80-90
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(3\) \( -1 \)
\(7\) \( -1 \)

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 441.8.a.a 1
3.b odd 2 1 147.8.a.b 1
7.b odd 2 1 9.8.a.a 1
21.c even 2 1 3.8.a.a 1
21.g even 6 2 147.8.e.b 2
21.h odd 6 2 147.8.e.a 2
28.d even 2 1 144.8.a.b 1
35.c odd 2 1 225.8.a.i 1
35.f even 4 2 225.8.b.f 2
56.e even 2 1 576.8.a.x 1
56.h odd 2 1 576.8.a.w 1
63.l odd 6 2 81.8.c.c 2
63.o even 6 2 81.8.c.a 2
84.h odd 2 1 48.8.a.g 1
105.g even 2 1 75.8.a.a 1
105.k odd 4 2 75.8.b.c 2
168.e odd 2 1 192.8.a.a 1
168.i even 2 1 192.8.a.i 1
231.h odd 2 1 363.8.a.b 1
273.g even 2 1 507.8.a.a 1
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
3.8.a.a 1 21.c even 2 1
9.8.a.a 1 7.b odd 2 1
48.8.a.g 1 84.h odd 2 1
75.8.a.a 1 105.g even 2 1
75.8.b.c 2 105.k odd 4 2
81.8.c.a 2 63.o even 6 2
81.8.c.c 2 63.l odd 6 2
144.8.a.b 1 28.d even 2 1
147.8.a.b 1 3.b odd 2 1
147.8.e.a 2 21.h odd 6 2
147.8.e.b 2 21.g even 6 2
192.8.a.a 1 168.e odd 2 1
192.8.a.i 1 168.i even 2 1
225.8.a.i 1 35.c odd 2 1
225.8.b.f 2 35.f even 4 2
363.8.a.b 1 231.h odd 2 1
441.8.a.a 1 1.a even 1 1 trivial
507.8.a.a 1 273.g even 2 1
576.8.a.w 1 56.h odd 2 1
576.8.a.x 1 56.e even 2 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{8}^{\mathrm{new}}(\Gamma_0(441))\):

\( T_{2} + 6 \) Copy content Toggle raw display
\( T_{5} - 390 \) Copy content Toggle raw display
\( T_{13} - 5098 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T + 6 \) Copy content Toggle raw display
$3$ \( T \) Copy content Toggle raw display
$5$ \( T - 390 \) Copy content Toggle raw display
$7$ \( T \) Copy content Toggle raw display
$11$ \( T - 948 \) Copy content Toggle raw display
$13$ \( T - 5098 \) Copy content Toggle raw display
$17$ \( T - 28386 \) Copy content Toggle raw display
$19$ \( T - 8620 \) Copy content Toggle raw display
$23$ \( T - 15288 \) Copy content Toggle raw display
$29$ \( T + 36510 \) Copy content Toggle raw display
$31$ \( T - 276808 \) Copy content Toggle raw display
$37$ \( T - 268526 \) Copy content Toggle raw display
$41$ \( T + 629718 \) Copy content Toggle raw display
$43$ \( T - 685772 \) Copy content Toggle raw display
$47$ \( T - 583296 \) Copy content Toggle raw display
$53$ \( T - 428058 \) Copy content Toggle raw display
$59$ \( T - 1306380 \) Copy content Toggle raw display
$61$ \( T + 300662 \) Copy content Toggle raw display
$67$ \( T + 507244 \) Copy content Toggle raw display
$71$ \( T + 5560632 \) Copy content Toggle raw display
$73$ \( T + 1369082 \) Copy content Toggle raw display
$79$ \( T + 6913720 \) Copy content Toggle raw display
$83$ \( T + 4376748 \) Copy content Toggle raw display
$89$ \( T + 8528310 \) Copy content Toggle raw display
$97$ \( T - 8826814 \) Copy content Toggle raw display
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