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Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [9610,2,Mod(1,9610)] 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("9610.1"); S:= CuspForms(chi, 2); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(9610, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0, 0])) N = Newforms(chi, 2, names="a")
 
Level: \( N \) \(=\) \( 9610 = 2 \cdot 5 \cdot 31^{2} \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 9610.a (trivial)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [3,3,-1,3,-3,-1,4,3,0,-3,-5] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(11)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: yes
Analytic conductor: \(76.7362363425\)
Analytic rank: \(1\)
Dimension: \(3\)
Coefficient field: 3.3.321.1
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{3} - x^{2} - 4x + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2, a_3]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 310)
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.

\(f(q)\) \(=\) \( q + q^{2} - \beta_1 q^{3} + q^{4} - q^{5} - \beta_1 q^{6} + (\beta_1 + 1) q^{7} + q^{8} + (\beta_{2} + \beta_1) q^{9} - q^{10} + ( - 2 \beta_{2} - \beta_1 - 2) q^{11} - \beta_1 q^{12} + (2 \beta_{2} + \beta_1) q^{13}+ \cdots + (\beta_{2} - 4 \beta_1 - 8) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 3 q + 3 q^{2} - q^{3} + 3 q^{4} - 3 q^{5} - q^{6} + 4 q^{7} + 3 q^{8} - 3 q^{10} - 5 q^{11} - q^{12} - q^{13} + 4 q^{14} + q^{15} + 3 q^{16} + q^{17} + 3 q^{19} - 3 q^{20} - 10 q^{21} - 5 q^{22} - 5 q^{23}+ \cdots - 29 q^{99}+O(q^{100}) \) Copy content Toggle raw display

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

\(\beta_{1}\)\(=\) \( \nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( \nu^{2} - \nu - 3 \) Copy content Toggle raw display
\(\nu\)\(=\) \( \beta_1 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( \beta_{2} + \beta _1 + 3 \) 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
2.46050
0.239123
−1.69963
1.00000 −2.46050 1.00000 −1.00000 −2.46050 3.46050 1.00000 3.05408 −1.00000
1.2 1.00000 −0.239123 1.00000 −1.00000 −0.239123 1.23912 1.00000 −2.94282 −1.00000
1.3 1.00000 1.69963 1.00000 −1.00000 1.69963 −0.699628 1.00000 −0.111264 −1.00000
\(n\): e.g. 2-40 or 80-90
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(2\) \( -1 \)
\(5\) \( +1 \)
\(31\) \( -1 \)

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 9610.2.a.v 3
31.b odd 2 1 9610.2.a.x 3
31.e odd 6 2 310.2.e.c 6
155.i odd 6 2 1550.2.e.l 6
155.p even 12 4 1550.2.p.g 12
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
310.2.e.c 6 31.e odd 6 2
1550.2.e.l 6 155.i odd 6 2
1550.2.p.g 12 155.p even 12 4
9610.2.a.v 3 1.a even 1 1 trivial
9610.2.a.x 3 31.b odd 2 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(\Gamma_0(9610))\):

\( T_{3}^{3} + T_{3}^{2} - 4T_{3} - 1 \) Copy content Toggle raw display
\( T_{7}^{3} - 4T_{7}^{2} + T_{7} + 3 \) Copy content Toggle raw display
\( T_{11}^{3} + 5T_{11}^{2} - 18T_{11} - 81 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( (T - 1)^{3} \) Copy content Toggle raw display
$3$ \( T^{3} + T^{2} - 4T - 1 \) Copy content Toggle raw display
$5$ \( (T + 1)^{3} \) Copy content Toggle raw display
$7$ \( T^{3} - 4T^{2} + T + 3 \) Copy content Toggle raw display
$11$ \( T^{3} + 5 T^{2} + \cdots - 81 \) Copy content Toggle raw display
$13$ \( T^{3} + T^{2} + \cdots + 33 \) Copy content Toggle raw display
$17$ \( T^{3} - T^{2} - 6T - 3 \) Copy content Toggle raw display
$19$ \( T^{3} - 3 T^{2} + \cdots + 7 \) Copy content Toggle raw display
$23$ \( T^{3} + 5 T^{2} + \cdots - 363 \) Copy content Toggle raw display
$29$ \( T^{3} + 2 T^{2} + \cdots - 147 \) Copy content Toggle raw display
$31$ \( T^{3} \) Copy content Toggle raw display
$37$ \( T^{3} + 5 T^{2} + \cdots - 197 \) Copy content Toggle raw display
$41$ \( T^{3} - 3 T^{2} + \cdots - 81 \) Copy content Toggle raw display
$43$ \( T^{3} - 9 T^{2} + \cdots + 659 \) Copy content Toggle raw display
$47$ \( T^{3} + 6 T^{2} + \cdots - 9 \) Copy content Toggle raw display
$53$ \( T^{3} + 11 T^{2} + \cdots - 579 \) Copy content Toggle raw display
$59$ \( T^{3} + 10 T^{2} + \cdots - 33 \) Copy content Toggle raw display
$61$ \( T^{3} + 7 T^{2} + \cdots - 123 \) Copy content Toggle raw display
$67$ \( T^{3} + 25 T^{2} + \cdots + 431 \) Copy content Toggle raw display
$71$ \( T^{3} - 9 T^{2} + \cdots + 81 \) Copy content Toggle raw display
$73$ \( T^{3} + 28 T^{2} + \cdots + 231 \) Copy content Toggle raw display
$79$ \( T^{3} - 9 T^{2} + \cdots + 281 \) Copy content Toggle raw display
$83$ \( T^{3} - 3 T^{2} + \cdots - 477 \) Copy content Toggle raw display
$89$ \( T^{3} + 9 T^{2} + \cdots - 243 \) Copy content Toggle raw display
$97$ \( T^{3} + 16 T^{2} + \cdots + 77 \) Copy content Toggle raw display
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