Properties

Label 3131.1.de.a
Level $3131$
Weight $1$
Character orbit 3131.de
Analytic conductor $1.563$
Analytic rank $0$
Dimension $20$
Projective image $D_{50}$
CM discriminant -31
Inner twists $4$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [3131,1,Mod(30,3131)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(3131, base_ring=CyclotomicField(50))
 
chi = DirichletCharacter(H, H._module([25, 47]))
 
N = Newforms(chi, 1, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("3131.30");
 
S:= CuspForms(chi, 1);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 3131 = 31 \cdot 101 \)
Weight: \( k \) \(=\) \( 1 \)
Character orbit: \([\chi]\) \(=\) 3131.de (of order \(50\), degree \(20\), minimal)

Newform invariants

comment: select newform
 
sage: f = N[0] # Warning: the index may be different
 
gp: f = lf[1] \\ Warning: the index may be different
 
Self dual: no
Analytic conductor: \(1.56257255455\)
Analytic rank: \(0\)
Dimension: \(20\)
Coefficient field: \(\Q(\zeta_{50})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{20} - x^{15} + x^{10} - x^{5} + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{4}]\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Projective image: \(D_{50}\)
Projective field: Galois closure of \(\mathbb{Q}[x]/(x^{50} - \cdots)\)

$q$-expansion

comment: q-expansion
 
sage: f.q_expansion() # note that sage often uses an isomorphic number field
 
gp: mfcoefs(f, 20)
 

The \(q\)-expansion and trace form are shown below.

\(f(q)\) \(=\) \( q + (\zeta_{50}^{18} - \zeta_{50}^{16}) q^{2} + ( - \zeta_{50}^{11} + \cdots - \zeta_{50}^{7}) q^{4}+ \cdots + \zeta_{50}^{21} q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + (\zeta_{50}^{18} - \zeta_{50}^{16}) q^{2} + ( - \zeta_{50}^{11} + \cdots - \zeta_{50}^{7}) q^{4}+ \cdots + ( - 2 \zeta_{50}^{24} + \cdots - \zeta_{50}) q^{98}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 20 q + 20 q^{8}+O(q^{10}) \) Copy content Toggle raw display \( 20 q + 20 q^{8} - 10 q^{14} + 5 q^{16} - 5 q^{19} + 5 q^{20} + 5 q^{28} - 5 q^{36} + 5 q^{38} - 5 q^{40} - 5 q^{45} + 5 q^{50} - 20 q^{56} + 5 q^{59} + 20 q^{63} + 20 q^{64} + 5 q^{67} - 5 q^{70} - 5 q^{71} - 20 q^{72} - 5 q^{76} + 20 q^{82} + 5 q^{98}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/3131\mathbb{Z}\right)^\times\).

\(n\) \(809\) \(2729\)
\(\chi(n)\) \(-1\) \(\zeta_{50}^{9}\)

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.

comment: embeddings in the coefficient field
 
gp: mfembed(f)
 
Label   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
30.1
−0.535827 0.844328i
−0.968583 + 0.248690i
0.425779 + 0.904827i
0.187381 + 0.982287i
−0.876307 + 0.481754i
−0.0627905 0.998027i
0.637424 + 0.770513i
0.929776 0.368125i
−0.728969 + 0.684547i
0.187381 0.982287i
0.637424 0.770513i
0.992115 + 0.125333i
0.992115 0.125333i
−0.535827 + 0.844328i
0.425779 0.904827i
−0.728969 0.684547i
−0.0627905 + 0.998027i
−0.968583 0.248690i
0.929776 + 0.368125i
−0.876307 0.481754i
1.65875 0.316423i 0 1.72154 0.681604i 0.0235315 0.123357i 0 0.211645 + 1.67534i 1.21413 0.770513i 0.637424 0.770513i 0.212063i
123.1 0.450043 + 0.211774i 0 −0.479734 0.579899i −0.791759 1.68257i 0 0.340480 + 0.362574i −0.216787 0.844328i −0.535827 0.844328i 0.924904i
247.1 −0.666178 + 1.68257i 0 −1.65829 1.55724i −1.84489 + 0.730444i 0 −0.450043 + 1.75280i 2.08747 0.982287i 0.187381 0.982287i 3.59077i
278.1 1.96070 0.123357i 0 2.83700 0.358397i −0.110048 + 1.74915i 0 −1.65875 + 1.05267i 3.58852 0.684547i −0.728969 0.684547i 3.44314i
526.1 −0.742395 + 0.614163i 0 −0.0134265 + 0.0703844i 0.929324 1.12336i 0 0.961606 + 0.0604991i −0.497433 0.904827i 0.425779 0.904827i 1.40473i
619.1 −0.961606 + 1.74915i 0 −1.59903 2.51967i 1.11716 0.614163i 0 −1.96070 + 0.374023i 3.95281 0.248690i −0.968583 0.248690i 2.54466i
929.1 −1.05491 1.12336i 0 −0.0863221 + 1.37205i −1.41213 1.32608i 0 0.742395 + 1.35041i 0.444986 0.368125i 0.929776 0.368125i 2.98522i
991.1 −0.0922765 0.730444i 0 0.443550 0.113884i 1.06320 + 0.134314i 0 0.666178 + 0.313480i −0.395147 0.998027i −0.0627905 0.998027i 0.789004i
1053.1 −0.340480 1.32608i 0 −0.766259 + 0.421255i 0.824805 + 0.211774i 0 1.05491 0.872693i −0.117696 0.125333i 0.992115 0.125333i 1.16586i
1115.1 1.96070 + 0.123357i 0 2.83700 + 0.358397i −0.110048 1.74915i 0 −1.65875 1.05267i 3.58852 + 0.684547i −0.728969 + 0.684547i 3.44314i
1611.1 −1.05491 + 1.12336i 0 −0.0863221 1.37205i −1.41213 + 1.32608i 0 0.742395 1.35041i 0.444986 + 0.368125i 0.929776 + 0.368125i 2.98522i
1766.1 −0.211645 0.134314i 0 −0.399026 0.847973i 0.200808 + 0.316423i 0 0.0922765 0.233064i −0.0608596 + 0.481754i −0.876307 + 0.481754i 0.0939404i
1952.1 −0.211645 + 0.134314i 0 −0.399026 + 0.847973i 0.200808 0.316423i 0 0.0922765 + 0.233064i −0.0608596 0.481754i −0.876307 0.481754i 0.0939404i
1983.1 1.65875 + 0.316423i 0 1.72154 + 0.681604i 0.0235315 + 0.123357i 0 0.211645 1.67534i 1.21413 + 0.770513i 0.637424 + 0.770513i 0.212063i
2231.1 −0.666178 1.68257i 0 −1.65829 + 1.55724i −1.84489 0.730444i 0 −0.450043 1.75280i 2.08747 + 0.982287i 0.187381 + 0.982287i 3.59077i
2572.1 −0.340480 + 1.32608i 0 −0.766259 0.421255i 0.824805 0.211774i 0 1.05491 + 0.872693i −0.117696 + 0.125333i 0.992115 + 0.125333i 1.16586i
2696.1 −0.961606 1.74915i 0 −1.59903 + 2.51967i 1.11716 + 0.614163i 0 −1.96070 0.374023i 3.95281 + 0.248690i −0.968583 + 0.248690i 2.54466i
2851.1 0.450043 0.211774i 0 −0.479734 + 0.579899i −0.791759 + 1.68257i 0 0.340480 0.362574i −0.216787 + 0.844328i −0.535827 + 0.844328i 0.924904i
2913.1 −0.0922765 + 0.730444i 0 0.443550 + 0.113884i 1.06320 0.134314i 0 0.666178 0.313480i −0.395147 + 0.998027i −0.0627905 + 0.998027i 0.789004i
3006.1 −0.742395 0.614163i 0 −0.0134265 0.0703844i 0.929324 + 1.12336i 0 0.961606 0.0604991i −0.497433 + 0.904827i 0.425779 + 0.904827i 1.40473i
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 30.1
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
31.b odd 2 1 CM by \(\Q(\sqrt{-31}) \)
101.h even 50 1 inner
3131.de odd 50 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 3131.1.de.a 20
31.b odd 2 1 CM 3131.1.de.a 20
101.h even 50 1 inner 3131.1.de.a 20
3131.de odd 50 1 inner 3131.1.de.a 20
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
3131.1.de.a 20 1.a even 1 1 trivial
3131.1.de.a 20 31.b odd 2 1 CM
3131.1.de.a 20 101.h even 50 1 inner
3131.1.de.a 20 3131.de odd 50 1 inner

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{2}^{20} - 20 T_{2}^{17} - 5 T_{2}^{16} + 150 T_{2}^{14} + 75 T_{2}^{13} + 25 T_{2}^{12} - 525 T_{2}^{11} + \cdots + 5 \) acting on \(S_{1}^{\mathrm{new}}(3131, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{20} - 20 T^{17} + \cdots + 5 \) Copy content Toggle raw display
$3$ \( T^{20} \) Copy content Toggle raw display
$5$ \( T^{20} - 5 T^{17} + \cdots + 1 \) Copy content Toggle raw display
$7$ \( T^{20} + 5 T^{17} + \cdots + 5 \) Copy content Toggle raw display
$11$ \( T^{20} \) Copy content Toggle raw display
$13$ \( T^{20} \) Copy content Toggle raw display
$17$ \( T^{20} \) Copy content Toggle raw display
$19$ \( T^{20} + 5 T^{19} + \cdots + 1 \) Copy content Toggle raw display
$23$ \( T^{20} \) Copy content Toggle raw display
$29$ \( T^{20} \) Copy content Toggle raw display
$31$ \( T^{20} - T^{15} + \cdots + 1 \) Copy content Toggle raw display
$37$ \( T^{20} \) Copy content Toggle raw display
$41$ \( T^{20} - 5 T^{18} + \cdots + 5 \) Copy content Toggle raw display
$43$ \( T^{20} \) Copy content Toggle raw display
$47$ \( T^{20} + 7 T^{15} + \cdots + 1 \) Copy content Toggle raw display
$53$ \( T^{20} \) Copy content Toggle raw display
$59$ \( T^{20} - 5 T^{19} + \cdots + 5 \) Copy content Toggle raw display
$61$ \( T^{20} \) Copy content Toggle raw display
$67$ \( T^{20} - 5 T^{19} + \cdots + 5 \) Copy content Toggle raw display
$71$ \( T^{20} + 5 T^{19} + \cdots + 1 \) Copy content Toggle raw display
$73$ \( T^{20} \) Copy content Toggle raw display
$79$ \( T^{20} \) Copy content Toggle raw display
$83$ \( T^{20} \) Copy content Toggle raw display
$89$ \( T^{20} \) Copy content Toggle raw display
$97$ \( T^{20} - 7 T^{15} + \cdots + 1 \) Copy content Toggle raw display
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