Properties

Label 105.8.a.b
Level $105$
Weight $8$
Character orbit 105.a
Self dual yes
Analytic conductor $32.800$
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] = [105,8,Mod(1,105)] 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("105.1"); S:= CuspForms(chi, 8); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(105, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0, 0, 0])) N = Newforms(chi, 8, names="a")
 
Level: \( N \) \(=\) \( 105 = 3 \cdot 5 \cdot 7 \)
Weight: \( k \) \(=\) \( 8 \)
Character orbit: \([\chi]\) \(=\) 105.a (trivial)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [1,18] 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: \(32.8004276758\)
Analytic rank: \(1\)
Dimension: \(1\)
Coefficient field: \(\mathbb{Q}\)
Coefficient ring: \(\mathbb{Z}\)
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)
 
\(f(q)\) \(=\) \( q + 18 q^{2} - 27 q^{3} + 196 q^{4} - 125 q^{5} - 486 q^{6} + 343 q^{7} + 1224 q^{8} + 729 q^{9} - 2250 q^{10} - 8016 q^{11} - 5292 q^{12} - 1786 q^{13} + 6174 q^{14} + 3375 q^{15} - 3056 q^{16} + 8358 q^{17}+ \cdots - 5843664 q^{99}+O(q^{100}) \) 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
18.0000 −27.0000 196.000 −125.000 −486.000 343.000 1224.00 729.000 −2250.00
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(3\) \( +1 \)
\(5\) \( +1 \)
\(7\) \( -1 \)

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 105.8.a.b 1
3.b odd 2 1 315.8.a.a 1
5.b even 2 1 525.8.a.a 1
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
105.8.a.b 1 1.a even 1 1 trivial
315.8.a.a 1 3.b odd 2 1
525.8.a.a 1 5.b even 2 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{2} - 18 \) acting on \(S_{8}^{\mathrm{new}}(\Gamma_0(105))\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T - 18 \) Copy content Toggle raw display
$3$ \( T + 27 \) Copy content Toggle raw display
$5$ \( T + 125 \) Copy content Toggle raw display
$7$ \( T - 343 \) Copy content Toggle raw display
$11$ \( T + 8016 \) Copy content Toggle raw display
$13$ \( T + 1786 \) Copy content Toggle raw display
$17$ \( T - 8358 \) Copy content Toggle raw display
$19$ \( T + 5884 \) Copy content Toggle raw display
$23$ \( T + 77700 \) Copy content Toggle raw display
$29$ \( T - 155742 \) Copy content Toggle raw display
$31$ \( T + 310000 \) Copy content Toggle raw display
$37$ \( T + 433618 \) Copy content Toggle raw display
$41$ \( T - 357942 \) Copy content Toggle raw display
$43$ \( T + 724492 \) Copy content Toggle raw display
$47$ \( T - 175320 \) Copy content Toggle raw display
$53$ \( T - 132198 \) Copy content Toggle raw display
$59$ \( T - 2648628 \) Copy content Toggle raw display
$61$ \( T - 835478 \) Copy content Toggle raw display
$67$ \( T - 3486308 \) Copy content Toggle raw display
$71$ \( T + 2872260 \) Copy content Toggle raw display
$73$ \( T - 5951882 \) Copy content Toggle raw display
$79$ \( T + 1680904 \) Copy content Toggle raw display
$83$ \( T - 3577524 \) Copy content Toggle raw display
$89$ \( T + 6254826 \) Copy content Toggle raw display
$97$ \( T + 5257054 \) Copy content Toggle raw display
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