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Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [968,4,Mod(1,968)] 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("968.1"); S:= CuspForms(chi, 4); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(968, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0, 0, 0])) N = Newforms(chi, 4, names="a")
 
Level: \( N \) \(=\) \( 968 = 2^{3} \cdot 11^{2} \)
Weight: \( k \) \(=\) \( 4 \)
Character orbit: \([\chi]\) \(=\) 968.a (trivial)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [3,0,2,0,-9,0,-6] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(7)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: yes
Analytic conductor: \(57.1138488856\)
Analytic rank: \(0\)
Dimension: \(3\)
Coefficient field: 3.3.1556.1
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{3} - x^{2} - 9x + 11 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2, a_3]\)
Coefficient ring index: \( 2^{3} \)
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)
 

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.

\(f(q)\) \(=\) \( q + (\beta_1 + 1) q^{3} + (\beta_{2} - 3) q^{5} + (\beta_{2} - 2) q^{7} + (\beta_{2} - \beta_1 - 2) q^{9} + (\beta_1 + 6) q^{13} + (3 \beta_{2} + 4 \beta_1 - 6) q^{15} + (5 \beta_{2} + 5 \beta_1 - 4) q^{17}+ \cdots + ( - 9 \beta_{2} + 155 \beta_1 + 1036) q^{97}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 3 q + 2 q^{3} - 9 q^{5} - 6 q^{7} - 5 q^{9} + 17 q^{13} - 22 q^{15} - 17 q^{17} - 6 q^{19} - 20 q^{21} + 106 q^{23} + 100 q^{25} - 148 q^{27} - 55 q^{29} - 58 q^{31} + 466 q^{35} - 277 q^{37} + 86 q^{39}+ \cdots + 2953 q^{97}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{3} - x^{2} - 9x + 11 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( 2\nu - 1 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( 4\nu^{2} + 2\nu - 26 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta _1 + 1 ) / 2 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( \beta_{2} - \beta _1 + 25 ) / 4 \) 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
−3.08060
1.27082
2.80979
0 −6.16121 0 2.79929 0 3.79929 0 10.9605 0
1.2 0 2.54164 0 −19.9984 0 −18.9984 0 −20.5401 0
1.3 0 5.61957 0 8.19916 0 9.19916 0 4.57959 0
\(n\): e.g. 2-40 or 80-90
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(2\) \( -1 \)
\(11\) \( -1 \)

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 968.4.a.g 3
4.b odd 2 1 1936.4.a.bg 3
11.b odd 2 1 968.4.a.h yes 3
44.c even 2 1 1936.4.a.bf 3
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
968.4.a.g 3 1.a even 1 1 trivial
968.4.a.h yes 3 11.b odd 2 1
1936.4.a.bf 3 44.c even 2 1
1936.4.a.bg 3 4.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 \(S_{4}^{\mathrm{new}}(\Gamma_0(968))\):

\( T_{3}^{3} - 2T_{3}^{2} - 36T_{3} + 88 \) Copy content Toggle raw display
\( T_{7}^{3} + 6T_{7}^{2} - 212T_{7} + 664 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{3} \) Copy content Toggle raw display
$3$ \( T^{3} - 2 T^{2} + \cdots + 88 \) Copy content Toggle raw display
$5$ \( T^{3} + 9 T^{2} + \cdots + 459 \) Copy content Toggle raw display
$7$ \( T^{3} + 6 T^{2} + \cdots + 664 \) Copy content Toggle raw display
$11$ \( T^{3} \) Copy content Toggle raw display
$13$ \( T^{3} - 17 T^{2} + \cdots + 93 \) Copy content Toggle raw display
$17$ \( T^{3} + 17 T^{2} + \cdots - 65981 \) Copy content Toggle raw display
$19$ \( T^{3} + 6 T^{2} + \cdots - 274024 \) Copy content Toggle raw display
$23$ \( T^{3} - 106 T^{2} + \cdots + 153656 \) Copy content Toggle raw display
$29$ \( T^{3} + 55 T^{2} + \cdots - 712827 \) Copy content Toggle raw display
$31$ \( T^{3} + 58 T^{2} + \cdots - 941208 \) Copy content Toggle raw display
$37$ \( T^{3} + 277 T^{2} + \cdots - 14080649 \) Copy content Toggle raw display
$41$ \( T^{3} - 439 T^{2} + \cdots + 46740443 \) Copy content Toggle raw display
$43$ \( T^{3} + 160 T^{2} + \cdots + 3465856 \) Copy content Toggle raw display
$47$ \( T^{3} + 86 T^{2} + \cdots - 46969224 \) Copy content Toggle raw display
$53$ \( T^{3} - 687 T^{2} + \cdots + 23674099 \) Copy content Toggle raw display
$59$ \( T^{3} - 56 T^{2} + \cdots - 4619648 \) Copy content Toggle raw display
$61$ \( T^{3} - 502 T^{2} + \cdots + 44138552 \) Copy content Toggle raw display
$67$ \( T^{3} - 882 T^{2} + \cdots + 32178168 \) Copy content Toggle raw display
$71$ \( T^{3} + 1236 T^{2} + \cdots - 113556032 \) Copy content Toggle raw display
$73$ \( T^{3} - 502 T^{2} + \cdots + 402393144 \) Copy content Toggle raw display
$79$ \( T^{3} - 2706 T^{2} + \cdots - 667322216 \) Copy content Toggle raw display
$83$ \( T^{3} - 858 T^{2} + \cdots + 381691288 \) Copy content Toggle raw display
$89$ \( T^{3} - 1341 T^{2} + \cdots + 15338369 \) Copy content Toggle raw display
$97$ \( T^{3} - 2953 T^{2} + \cdots + 297518597 \) Copy content Toggle raw display
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