Properties

Label 578.2.c.f
Level $578$
Weight $2$
Character orbit 578.c
Analytic conductor $4.615$
Analytic rank $0$
Dimension $8$
Inner twists $4$

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Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [578,2,Mod(251,578)] 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("578.251"); S:= CuspForms(chi, 2); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(578, base_ring=CyclotomicField(4)) chi = DirichletCharacter(H, H._module([1])) N = Newforms(chi, 2, names="a")
 
Level: \( N \) \(=\) \( 578 = 2 \cdot 17^{2} \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 578.c (of order \(4\), degree \(2\), not minimal)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [8,0,0,-8,0,0,0,0,0,0,0,0,-16] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(13)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: no
Analytic conductor: \(4.61535323683\)
Analytic rank: \(0\)
Dimension: \(8\)
Relative dimension: \(4\) over \(\Q(i)\)
Coefficient field: \(\Q(\zeta_{16})\)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{8} + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2, a_3]\)
Coefficient ring index: \( 2^{3} \)
Twist minimal: no (minimal twist has level 34)
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.

\(f(q)\) \(=\) \( q + \beta_{2} q^{2} + \beta_{7} q^{3} - q^{4} - 2 \beta_{7} q^{5} - \beta_{5} q^{6} + 2 \beta_{4} q^{7} - \beta_{2} q^{8} + ( - \beta_{3} - \beta_{2}) q^{9} + 2 \beta_{5} q^{10} + (2 \beta_{5} + \beta_{4}) q^{11}+ \cdots + \beta_{7} q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q - 8 q^{4} - 16 q^{13} + 8 q^{16} + 8 q^{18} + 32 q^{30} + 32 q^{33} + 16 q^{38} - 32 q^{47} - 24 q^{50} + 16 q^{52} - 64 q^{55} - 8 q^{64} + 48 q^{67} - 8 q^{72} + 24 q^{81} - 48 q^{86} + 64 q^{89}+ \cdots + 8 q^{98}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring

\(\beta_{1}\)\(=\) \( \zeta_{16}^{3} + \zeta_{16} \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( \zeta_{16}^{4} \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( \zeta_{16}^{6} + \zeta_{16}^{2} \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( \zeta_{16}^{7} + \zeta_{16}^{5} \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( -\zeta_{16}^{3} + \zeta_{16} \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( -\zeta_{16}^{6} + \zeta_{16}^{2} \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( -\zeta_{16}^{7} + \zeta_{16}^{5} \) Copy content Toggle raw display
\(\zeta_{16}\)\(=\) \( ( \beta_{5} + \beta_1 ) / 2 \) Copy content Toggle raw display
\(\zeta_{16}^{2}\)\(=\) \( ( \beta_{6} + \beta_{3} ) / 2 \) Copy content Toggle raw display
\(\zeta_{16}^{3}\)\(=\) \( ( -\beta_{5} + \beta_1 ) / 2 \) Copy content Toggle raw display
\(\zeta_{16}^{4}\)\(=\) \( \beta_{2} \) Copy content Toggle raw display
\(\zeta_{16}^{5}\)\(=\) \( ( \beta_{7} + \beta_{4} ) / 2 \) Copy content Toggle raw display
\(\zeta_{16}^{6}\)\(=\) \( ( -\beta_{6} + \beta_{3} ) / 2 \) Copy content Toggle raw display
\(\zeta_{16}^{7}\)\(=\) \( ( -\beta_{7} + \beta_{4} ) / 2 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/578\mathbb{Z}\right)^\times\).

\(n\) \(3\)
\(\chi(n)\) \(\beta_{2}\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
251.1
−0.382683 + 0.923880i
−0.923880 0.382683i
0.923880 + 0.382683i
0.382683 0.923880i
−0.382683 0.923880i
−0.923880 + 0.382683i
0.923880 0.382683i
0.382683 + 0.923880i
1.00000i −1.30656 1.30656i −1.00000 2.61313 + 2.61313i 1.30656 1.30656i −1.08239 + 1.08239i 1.00000i 0.414214i −2.61313 + 2.61313i
251.2 1.00000i −0.541196 0.541196i −1.00000 1.08239 + 1.08239i 0.541196 0.541196i 2.61313 2.61313i 1.00000i 2.41421i −1.08239 + 1.08239i
251.3 1.00000i 0.541196 + 0.541196i −1.00000 −1.08239 1.08239i −0.541196 + 0.541196i −2.61313 + 2.61313i 1.00000i 2.41421i 1.08239 1.08239i
251.4 1.00000i 1.30656 + 1.30656i −1.00000 −2.61313 2.61313i −1.30656 + 1.30656i 1.08239 1.08239i 1.00000i 0.414214i 2.61313 2.61313i
327.1 1.00000i −1.30656 + 1.30656i −1.00000 2.61313 2.61313i 1.30656 + 1.30656i −1.08239 1.08239i 1.00000i 0.414214i −2.61313 2.61313i
327.2 1.00000i −0.541196 + 0.541196i −1.00000 1.08239 1.08239i 0.541196 + 0.541196i 2.61313 + 2.61313i 1.00000i 2.41421i −1.08239 1.08239i
327.3 1.00000i 0.541196 0.541196i −1.00000 −1.08239 + 1.08239i −0.541196 0.541196i −2.61313 2.61313i 1.00000i 2.41421i 1.08239 + 1.08239i
327.4 1.00000i 1.30656 1.30656i −1.00000 −2.61313 + 2.61313i −1.30656 1.30656i 1.08239 + 1.08239i 1.00000i 0.414214i 2.61313 + 2.61313i
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 251.4
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
17.b even 2 1 inner
17.c even 4 2 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 578.2.c.f 8
17.b even 2 1 inner 578.2.c.f 8
17.c even 4 2 inner 578.2.c.f 8
17.d even 8 2 578.2.a.i 4
17.d even 8 2 578.2.b.d 4
17.e odd 16 2 34.2.d.a 4
17.e odd 16 2 578.2.d.a 4
17.e odd 16 2 578.2.d.b 4
17.e odd 16 2 578.2.d.c 4
51.g odd 8 2 5202.2.a.bw 4
51.i even 16 2 306.2.l.c 4
68.g odd 8 2 4624.2.a.bn 4
68.i even 16 2 272.2.v.b 4
85.o even 16 2 850.2.o.b 4
85.p odd 16 2 850.2.l.a 4
85.r even 16 2 850.2.o.a 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
34.2.d.a 4 17.e odd 16 2
272.2.v.b 4 68.i even 16 2
306.2.l.c 4 51.i even 16 2
578.2.a.i 4 17.d even 8 2
578.2.b.d 4 17.d even 8 2
578.2.c.f 8 1.a even 1 1 trivial
578.2.c.f 8 17.b even 2 1 inner
578.2.c.f 8 17.c even 4 2 inner
578.2.d.a 4 17.e odd 16 2
578.2.d.b 4 17.e odd 16 2
578.2.d.c 4 17.e odd 16 2
850.2.l.a 4 85.p odd 16 2
850.2.o.a 4 85.r even 16 2
850.2.o.b 4 85.o even 16 2
4624.2.a.bn 4 68.g odd 8 2
5202.2.a.bw 4 51.g odd 8 2

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{3}^{8} + 12T_{3}^{4} + 4 \) acting on \(S_{2}^{\mathrm{new}}(578, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( (T^{2} + 1)^{4} \) Copy content Toggle raw display
$3$ \( T^{8} + 12T^{4} + 4 \) Copy content Toggle raw display
$5$ \( T^{8} + 192T^{4} + 1024 \) Copy content Toggle raw display
$7$ \( T^{8} + 192T^{4} + 1024 \) Copy content Toggle raw display
$11$ \( T^{8} + 396T^{4} + 4 \) Copy content Toggle raw display
$13$ \( (T^{2} + 4 T - 4)^{4} \) Copy content Toggle raw display
$17$ \( T^{8} \) Copy content Toggle raw display
$19$ \( (T^{4} + 24 T^{2} + 16)^{2} \) Copy content Toggle raw display
$23$ \( T^{8} + 3072 T^{4} + 262144 \) Copy content Toggle raw display
$29$ \( T^{8} + 192T^{4} + 1024 \) Copy content Toggle raw display
$31$ \( T^{8} + 192T^{4} + 1024 \) Copy content Toggle raw display
$37$ \( T^{8} + 768 T^{4} + 16384 \) Copy content Toggle raw display
$41$ \( T^{8} + 17292 T^{4} + 23059204 \) Copy content Toggle raw display
$43$ \( (T^{4} + 108 T^{2} + 324)^{2} \) Copy content Toggle raw display
$47$ \( (T^{2} + 8 T - 16)^{4} \) Copy content Toggle raw display
$53$ \( (T^{4} + 24 T^{2} + 16)^{2} \) Copy content Toggle raw display
$59$ \( (T^{4} + 12 T^{2} + 4)^{2} \) Copy content Toggle raw display
$61$ \( T^{8} + 3072 T^{4} + 262144 \) Copy content Toggle raw display
$67$ \( (T^{2} - 12 T + 34)^{4} \) Copy content Toggle raw display
$71$ \( T^{8} + 768 T^{4} + 16384 \) Copy content Toggle raw display
$73$ \( T^{8} + 28812 T^{4} + 23059204 \) Copy content Toggle raw display
$79$ \( T^{8} + 768 T^{4} + 16384 \) Copy content Toggle raw display
$83$ \( (T^{4} + 44 T^{2} + 196)^{2} \) Copy content Toggle raw display
$89$ \( (T^{2} - 16 T + 14)^{4} \) Copy content Toggle raw display
$97$ \( T^{8} + 972 T^{4} + 26244 \) Copy content Toggle raw display
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