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Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [58,3,Mod(17,58)] 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("58.17"); S:= CuspForms(chi, 3); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(58, base_ring=CyclotomicField(4)) chi = DirichletCharacter(H, H._module([3])) N = Newforms(chi, 3, names="a")
 
Level: \( N \) \(=\) \( 58 = 2 \cdot 29 \)
Weight: \( k \) \(=\) \( 3 \)
Character orbit: \([\chi]\) \(=\) 58.c (of order \(4\), degree \(2\), minimal)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [4] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(1)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: no
Analytic conductor: \(1.58038553329\)
Analytic rank: \(0\)
Dimension: \(4\)
Relative dimension: \(2\) over \(\Q(i)\)
Coefficient field: \(\Q(i, \sqrt{6})\)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{4} + 9 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2, a_3]\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{4}]$

$q$-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 \(1,\beta_1,\beta_2,\beta_3\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + ( - \beta_{2} + 1) q^{2} + (\beta_{3} - \beta_{2} + 1) q^{3} - 2 \beta_{2} q^{4} + ( - 2 \beta_{3} - \beta_{2} - 2 \beta_1) q^{5} + (\beta_{3} - 2 \beta_{2} + \beta_1) q^{6} + ( - 3 \beta_{3} + 3 \beta_1 + 2) q^{7}+ \cdots + ( - 54 \beta_{2} - 40 \beta_1 - 54) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 4 q + 4 q^{2} + 4 q^{3} + 8 q^{7} - 8 q^{8} - 4 q^{10} - 12 q^{11} - 8 q^{12} + 8 q^{14} + 20 q^{15} - 16 q^{16} - 32 q^{17} + 16 q^{18} - 8 q^{20} - 28 q^{21} + 16 q^{23} - 16 q^{24} + 12 q^{26} + 28 q^{27}+ \cdots - 216 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{4} + 9 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( \nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( \nu^{2} ) / 3 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( \nu^{3} ) / 3 \) Copy content Toggle raw display
\(\nu\)\(=\) \( \beta_1 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( 3\beta_{2} \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( 3\beta_{3} \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/58\mathbb{Z}\right)^\times\).

\(n\) \(31\)
\(\chi(n)\) \(-\beta_{2}\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
17.1
1.22474 + 1.22474i
−1.22474 − 1.22474i
1.22474 − 1.22474i
−1.22474 + 1.22474i
1.00000 − 1.00000i −0.224745 + 0.224745i − 2.00000i − 5.89898i 0.449490i 9.34847 −2.00000 − 2.00000i 8.89898i −5.89898 − 5.89898i
17.2 1.00000 − 1.00000i 2.22474 − 2.22474i − 2.00000i 3.89898i − 4.44949i −5.34847 −2.00000 − 2.00000i − 0.898979i 3.89898 + 3.89898i
41.1 1.00000 + 1.00000i −0.224745 − 0.224745i 2.00000i 5.89898i − 0.449490i 9.34847 −2.00000 + 2.00000i − 8.89898i −5.89898 + 5.89898i
41.2 1.00000 + 1.00000i 2.22474 + 2.22474i 2.00000i − 3.89898i 4.44949i −5.34847 −2.00000 + 2.00000i 0.898979i 3.89898 − 3.89898i
\(n\): e.g. 2-40 or 80-90
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
29.c odd 4 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 58.3.c.a ✓ 4
3.b odd 2 1 522.3.f.a 4
4.b odd 2 1 464.3.l.a 4
29.c odd 4 1 inner 58.3.c.a ✓ 4
87.f even 4 1 522.3.f.a 4
116.e even 4 1 464.3.l.a 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
58.3.c.a ✓ 4 1.a even 1 1 trivial
58.3.c.a ✓ 4 29.c odd 4 1 inner
464.3.l.a 4 4.b odd 2 1
464.3.l.a 4 116.e even 4 1
522.3.f.a 4 3.b odd 2 1
522.3.f.a 4 87.f even 4 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{3}^{4} - 4T_{3}^{3} + 8T_{3}^{2} + 4T_{3} + 1 \) acting on \(S_{3}^{\mathrm{new}}(58, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( (T^{2} - 2 T + 2)^{2} \) Copy content Toggle raw display
$3$ \( T^{4} - 4 T^{3} + \cdots + 1 \) Copy content Toggle raw display
$5$ \( T^{4} + 50T^{2} + 529 \) Copy content Toggle raw display
$7$ \( (T^{2} - 4 T - 50)^{2} \) Copy content Toggle raw display
$11$ \( T^{4} + 12 T^{3} + \cdots + 16641 \) Copy content Toggle raw display
$13$ \( T^{4} + 210T^{2} + 7569 \) Copy content Toggle raw display
$17$ \( T^{4} + 32 T^{3} + \cdots + 4096 \) Copy content Toggle raw display
$19$ \( T^{4} + 144 \) Copy content Toggle raw display
$23$ \( (T^{2} - 8 T - 1520)^{2} \) Copy content Toggle raw display
$29$ \( (T + 29)^{4} \) Copy content Toggle raw display
$31$ \( T^{4} - 76 T^{3} + \cdots + 128881 \) Copy content Toggle raw display
$37$ \( (T^{2} + 16 T + 128)^{2} \) Copy content Toggle raw display
$41$ \( T^{4} + 116 T^{3} + \cdots + 232324 \) Copy content Toggle raw display
$43$ \( T^{4} - 156 T^{3} + \cdots + 4730625 \) Copy content Toggle raw display
$47$ \( T^{4} + 28 T^{3} + \cdots + 4363921 \) Copy content Toggle raw display
$53$ \( (T^{2} + 70 T - 1175)^{2} \) Copy content Toggle raw display
$59$ \( (T^{2} + 32 T - 128)^{2} \) Copy content Toggle raw display
$61$ \( T^{4} + 16 T^{3} + \cdots + 1364224 \) Copy content Toggle raw display
$67$ \( T^{4} + 7040 T^{2} + 7573504 \) Copy content Toggle raw display
$71$ \( T^{4} + 500T^{2} + 2500 \) Copy content Toggle raw display
$73$ \( T^{4} - 48 T^{3} + \cdots + 110502144 \) Copy content Toggle raw display
$79$ \( T^{4} + 132 T^{3} + \cdots + 4626801 \) Copy content Toggle raw display
$83$ \( (T^{2} - 56 T - 5360)^{2} \) Copy content Toggle raw display
$89$ \( T^{4} - 204 T^{3} + \cdots + 16016004 \) Copy content Toggle raw display
$97$ \( T^{4} - 276 T^{3} + \cdots + 31741956 \) Copy content Toggle raw display
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