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Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [522,2,Mod(17,522)] 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("522.17"); S:= CuspForms(chi, 2); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(522, base_ring=CyclotomicField(4)) chi = DirichletCharacter(H, H._module([2, 3])) N = Newforms(chi, 2, names="a")
 
Level: \( N \) \(=\) \( 522 = 2 \cdot 3^{2} \cdot 29 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 522.g (of order \(4\), degree \(2\), minimal)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [8] 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: \(4.16819098551\)
Analytic rank: \(0\)
Dimension: \(8\)
Relative dimension: \(4\) over \(\Q(i)\)
Coefficient field: \(\Q(\zeta_{24})\)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{8} - x^{4} + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{5}]\)
Coefficient ring index: \( 2^{4} \)
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 \(1,\beta_1,\ldots,\beta_{7}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q - \beta_1 q^{2} + \beta_{3} q^{4} + (\beta_{6} + \beta_{5} + \beta_1) q^{5} - q^{7} + \beta_{5} q^{8} + ( - \beta_{3} - \beta_{2} - 1) q^{10} + (2 \beta_{6} + 2 \beta_{4}) q^{11} + ( - \beta_{7} - \beta_{2}) q^{13}+ \cdots + 6 \beta_1 q^{98}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q - 8 q^{7} - 8 q^{10} - 8 q^{16} + 8 q^{31} - 16 q^{37} + 8 q^{40} - 16 q^{46} - 48 q^{49} + 48 q^{55} + 8 q^{58} + 64 q^{61} + 8 q^{70} - 24 q^{79} - 8 q^{82} + 16 q^{85} - 40 q^{94} - 48 q^{97}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring

\(\beta_{1}\)\(=\) \( \zeta_{24}^{3} \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( \zeta_{24}^{5} + \zeta_{24} \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( \zeta_{24}^{6} \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( 2\zeta_{24}^{4} - 1 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( -\zeta_{24}^{5} + \zeta_{24} \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( -\zeta_{24}^{6} + 2\zeta_{24}^{2} \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( 2\zeta_{24}^{7} - \zeta_{24}^{3} \) Copy content Toggle raw display
\(\zeta_{24}\)\(=\) \( ( \beta_{5} + \beta_{2} ) / 2 \) Copy content Toggle raw display
\(\zeta_{24}^{2}\)\(=\) \( ( \beta_{6} + \beta_{3} ) / 2 \) Copy content Toggle raw display
\(\zeta_{24}^{3}\)\(=\) \( \beta_1 \) Copy content Toggle raw display
\(\zeta_{24}^{4}\)\(=\) \( ( \beta_{4} + 1 ) / 2 \) Copy content Toggle raw display
\(\zeta_{24}^{5}\)\(=\) \( ( -\beta_{5} + \beta_{2} ) / 2 \) Copy content Toggle raw display
\(\zeta_{24}^{6}\)\(=\) \( \beta_{3} \) Copy content Toggle raw display
\(\zeta_{24}^{7}\)\(=\) \( ( \beta_{7} + \beta_1 ) / 2 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/522\mathbb{Z}\right)^\times\).

\(n\) \(379\) \(407\)
\(\chi(n)\) \(-\beta_{3}\) \(-1\)

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
−0.258819 0.965926i
0.965926 + 0.258819i
0.258819 + 0.965926i
−0.965926 0.258819i
−0.258819 + 0.965926i
0.965926 0.258819i
0.258819 0.965926i
−0.965926 + 0.258819i
−0.707107 0.707107i 0 1.00000i −0.317837 0 −1.00000 0.707107 0.707107i 0 0.224745 + 0.224745i
17.2 −0.707107 0.707107i 0 1.00000i 3.14626 0 −1.00000 0.707107 0.707107i 0 −2.22474 2.22474i
17.3 0.707107 + 0.707107i 0 1.00000i −3.14626 0 −1.00000 −0.707107 + 0.707107i 0 −2.22474 2.22474i
17.4 0.707107 + 0.707107i 0 1.00000i 0.317837 0 −1.00000 −0.707107 + 0.707107i 0 0.224745 + 0.224745i
215.1 −0.707107 + 0.707107i 0 1.00000i −0.317837 0 −1.00000 0.707107 + 0.707107i 0 0.224745 0.224745i
215.2 −0.707107 + 0.707107i 0 1.00000i 3.14626 0 −1.00000 0.707107 + 0.707107i 0 −2.22474 + 2.22474i
215.3 0.707107 0.707107i 0 1.00000i −3.14626 0 −1.00000 −0.707107 0.707107i 0 −2.22474 + 2.22474i
215.4 0.707107 0.707107i 0 1.00000i 0.317837 0 −1.00000 −0.707107 0.707107i 0 0.224745 0.224745i
\(n\): e.g. 2-40 or 80-90
Embeddings: e.g. 1-3 or 17.4
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
3.b odd 2 1 inner
29.c odd 4 1 inner
87.f even 4 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 522.2.g.a 8
3.b odd 2 1 inner 522.2.g.a 8
29.c odd 4 1 inner 522.2.g.a 8
87.f even 4 1 inner 522.2.g.a 8
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
522.2.g.a 8 1.a even 1 1 trivial
522.2.g.a 8 3.b odd 2 1 inner
522.2.g.a 8 29.c odd 4 1 inner
522.2.g.a 8 87.f even 4 1 inner

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{5}^{4} - 10T_{5}^{2} + 1 \) acting on \(S_{2}^{\mathrm{new}}(522, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( (T^{4} + 1)^{2} \) Copy content Toggle raw display
$3$ \( T^{8} \) Copy content Toggle raw display
$5$ \( (T^{4} - 10 T^{2} + 1)^{2} \) Copy content Toggle raw display
$7$ \( (T + 1)^{8} \) Copy content Toggle raw display
$11$ \( (T^{4} + 576)^{2} \) Copy content Toggle raw display
$13$ \( (T^{2} + 6)^{4} \) Copy content Toggle raw display
$17$ \( T^{8} + 146T^{4} + 625 \) Copy content Toggle raw display
$19$ \( (T^{4} + 9)^{2} \) Copy content Toggle raw display
$23$ \( (T^{4} + 40 T^{2} + 16)^{2} \) Copy content Toggle raw display
$29$ \( (T^{4} - 50 T^{2} + 841)^{2} \) Copy content Toggle raw display
$31$ \( (T^{4} - 4 T^{3} + \cdots + 100)^{2} \) Copy content Toggle raw display
$37$ \( (T^{4} + 8 T^{3} + \cdots + 361)^{2} \) Copy content Toggle raw display
$41$ \( T^{8} + 146T^{4} + 625 \) Copy content Toggle raw display
$43$ \( (T^{4} + 9)^{2} \) Copy content Toggle raw display
$47$ \( T^{8} + 23282 T^{4} + 707281 \) Copy content Toggle raw display
$53$ \( (T^{4} + 112 T^{2} + 1600)^{2} \) Copy content Toggle raw display
$59$ \( (T^{4} + 106 T^{2} + 2209)^{2} \) Copy content Toggle raw display
$61$ \( (T^{4} - 32 T^{3} + \cdots + 13456)^{2} \) Copy content Toggle raw display
$67$ \( (T^{4} + 20 T^{2} + 4)^{2} \) Copy content Toggle raw display
$71$ \( (T^{4} - 124 T^{2} + 1444)^{2} \) Copy content Toggle raw display
$73$ \( T^{8} \) Copy content Toggle raw display
$79$ \( (T^{4} + 12 T^{3} + \cdots + 8100)^{2} \) Copy content Toggle raw display
$83$ \( (T^{4} + 112 T^{2} + 1600)^{2} \) Copy content Toggle raw display
$89$ \( T^{8} + 62496 T^{4} + 12960000 \) Copy content Toggle raw display
$97$ \( (T^{2} + 12 T + 72)^{4} \) Copy content Toggle raw display
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