Properties

Label 1379.1.ba.a
Level $1379$
Weight $1$
Character orbit 1379.ba
Analytic conductor $0.688$
Analytic rank $0$
Dimension $42$
Projective image $D_{98}$
CM discriminant -7
Inner twists $4$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [1379,1,Mod(41,1379)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1379, base_ring=CyclotomicField(98))
 
chi = DirichletCharacter(H, H._module([49, 55]))
 
N = Newforms(chi, 1, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("1379.41");
 
S:= CuspForms(chi, 1);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 1379 = 7 \cdot 197 \)
Weight: \( k \) \(=\) \( 1 \)
Character orbit: \([\chi]\) \(=\) 1379.ba (of order \(98\), degree \(42\), 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: \(0.688210652421\)
Analytic rank: \(0\)
Dimension: \(42\)
Coefficient field: \(\Q(\zeta_{98})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{42} - x^{35} + x^{28} - x^{21} + x^{14} - x^{7} + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{4}]\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Projective image: \(D_{98}\)
Projective field: Galois closure of \(\mathbb{Q}[x]/(x^{98} - \cdots)\)

$q$-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.

\(f(q)\) \(=\) \( q + (\zeta_{98}^{19} + \zeta_{98}^{18}) q^{2} + (\zeta_{98}^{38} + \cdots + \zeta_{98}^{36}) q^{4}+ \cdots + \zeta_{98}^{33} q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + (\zeta_{98}^{19} + \zeta_{98}^{18}) q^{2} + (\zeta_{98}^{38} + \cdots + \zeta_{98}^{36}) q^{4}+ \cdots + ( - \zeta_{98}^{48} - \zeta_{98}^{13}) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 42 q - 7 q^{8}+O(q^{10}) \) Copy content Toggle raw display \( 42 q - 7 q^{8} - 7 q^{28} - 42 q^{29} + 7 q^{32} - 7 q^{36} + 7 q^{50} + 7 q^{56} - 7 q^{58} - 7 q^{64} + 7 q^{67} + 7 q^{71} - 7 q^{79}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/1379\mathbb{Z}\right)^\times\).

\(n\) \(395\) \(1184\)
\(\chi(n)\) \(-1\) \(\zeta_{98}^{37}\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
41.1
−0.0320516 0.999486i
0.838088 0.545535i
−0.801414 + 0.598111i
0.462538 + 0.886599i
−0.926917 + 0.375267i
−0.871319 + 0.490718i
0.949056 0.315108i
−0.871319 0.490718i
0.981559 + 0.191159i
0.572117 0.820172i
−0.284528 + 0.958668i
−0.518393 0.855143i
−0.0320516 + 0.999486i
−0.967295 0.253655i
0.672301 + 0.740278i
−0.284528 0.958668i
0.572117 + 0.820172i
−0.159600 + 0.987182i
0.949056 + 0.315108i
0.981559 0.191159i
−0.265971 + 1.36571i 0 −0.867498 0.351211i 0 0 −0.981559 + 0.191159i −0.0486567 + 0.0747498i −0.871319 0.490718i 0
55.1 −0.604168 + 1.81966i 0 −2.14472 1.60065i 0 0 −0.949056 + 0.315108i 2.63586 1.83866i 0.981559 0.191159i 0
62.1 −0.408524 + 0.479876i 0 0.0962112 + 0.595100i 0 0 −0.761446 + 0.648228i −0.863804 0.523643i 0.672301 + 0.740278i 0
97.1 0.433822 + 1.65435i 0 −1.67736 + 0.944669i 0 0 0.967295 + 0.253655i −1.10067 1.13653i −0.159600 0.987182i 0
146.1 0.283021 + 0.257032i 0 −0.0819877 0.849888i 0 0 −0.672301 0.740278i 0.423912 0.568004i −0.991790 + 0.127877i 0
160.1 −0.0325034 0.506267i 0 0.736540 0.0949664i 0 0 −0.997945 0.0640702i −0.168995 0.867753i 0.345365 0.938468i 0
174.1 1.85288 + 0.681876i 0 2.20676 + 1.87864i 0 0 −0.345365 0.938468i 1.83899 + 3.26532i −0.404783 + 0.914413i 0
181.1 −0.0325034 + 0.506267i 0 0.736540 + 0.0949664i 0 0 −0.997945 + 0.0640702i −0.168995 + 0.867753i 0.345365 + 0.938468i 0
223.1 −1.82037 0.805826i 0 1.99211 + 2.19353i 0 0 0.404783 + 0.914413i −1.23147 3.70900i 0.997945 + 0.0640702i 0
244.1 0.870140 + 1.54502i 0 −1.11155 + 1.83363i 0 0 0.871319 + 0.490718i −2.02791 0.0650311i 0.949056 0.315108i 0
293.1 −1.18089 + 0.190917i 0 0.408991 0.135794i 0 0 0.159600 0.987182i 0.603522 0.314857i 0.0960230 0.995379i 0
335.1 0.125503 0.973378i 0 0.0355821 + 0.00933072i 0 0 0.991790 0.127877i 0.381848 0.943172i 0.761446 0.648228i 0
370.1 −0.265971 1.36571i 0 −0.867498 + 0.351211i 0 0 −0.981559 0.191159i −0.0486567 0.0747498i −0.871319 + 0.490718i 0
398.1 −0.255623 0.00819733i 0 −0.932670 0.0598794i 0 0 0.0320516 + 0.999486i 0.492493 + 0.0475102i 0.572117 0.820172i 0
419.1 −1.75324 + 0.520351i 0 1.96498 1.27906i 0 0 0.284528 0.958668i −1.59402 + 1.87243i −0.718349 + 0.695683i 0
433.1 −1.18089 0.190917i 0 0.408991 + 0.135794i 0 0 0.159600 + 0.987182i 0.603522 + 0.314857i 0.0960230 + 0.995379i 0
503.1 0.870140 1.54502i 0 −1.11155 1.83363i 0 0 0.871319 0.490718i −2.02791 + 0.0650311i 0.949056 + 0.315108i 0
510.1 1.06332 + 0.741725i 0 0.235125 + 0.638909i 0 0 −0.572117 0.820172i 0.104970 0.400294i 0.838088 + 0.545535i 0
531.1 1.85288 0.681876i 0 2.20676 1.87864i 0 0 −0.345365 + 0.938468i 1.83899 3.26532i −0.404783 0.914413i 0
538.1 −1.82037 + 0.805826i 0 1.99211 2.19353i 0 0 0.404783 0.914413i −1.23147 + 3.70900i 0.997945 0.0640702i 0
See all 42 embeddings
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 41.1
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
7.b odd 2 1 CM by \(\Q(\sqrt{-7}) \)
197.h even 98 1 inner
1379.ba odd 98 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 1379.1.ba.a 42
7.b odd 2 1 CM 1379.1.ba.a 42
197.h even 98 1 inner 1379.1.ba.a 42
1379.ba odd 98 1 inner 1379.1.ba.a 42
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
1379.1.ba.a 42 1.a even 1 1 trivial
1379.1.ba.a 42 7.b odd 2 1 CM
1379.1.ba.a 42 197.h even 98 1 inner
1379.1.ba.a 42 1379.ba odd 98 1 inner

Hecke kernels

This newform subspace is the entire newspace \(S_{1}^{\mathrm{new}}(1379, [\chi])\).

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{42} + 7 T^{39} + \cdots + 7 \) Copy content Toggle raw display
$3$ \( T^{42} \) Copy content Toggle raw display
$5$ \( T^{42} \) Copy content Toggle raw display
$7$ \( T^{42} + T^{35} + \cdots + 1 \) Copy content Toggle raw display
$11$ \( T^{42} + 245 T^{35} + \cdots + 823543 \) Copy content Toggle raw display
$13$ \( T^{42} \) Copy content Toggle raw display
$17$ \( T^{42} \) Copy content Toggle raw display
$19$ \( T^{42} \) Copy content Toggle raw display
$23$ \( T^{42} - 117 T^{35} + \cdots + 1 \) Copy content Toggle raw display
$29$ \( T^{42} + 42 T^{41} + \cdots + 1 \) Copy content Toggle raw display
$31$ \( T^{42} \) Copy content Toggle raw display
$37$ \( T^{42} - 42 T^{39} + \cdots + 1 \) Copy content Toggle raw display
$41$ \( T^{42} \) Copy content Toggle raw display
$43$ \( T^{42} - 7 T^{39} + \cdots + 1 \) Copy content Toggle raw display
$47$ \( T^{42} \) Copy content Toggle raw display
$53$ \( T^{42} + 7 T^{38} + \cdots + 1 \) Copy content Toggle raw display
$59$ \( T^{42} \) Copy content Toggle raw display
$61$ \( T^{42} \) Copy content Toggle raw display
$67$ \( T^{42} - 7 T^{41} + \cdots + 7 \) Copy content Toggle raw display
$71$ \( T^{42} - 7 T^{41} + \cdots + 7 \) Copy content Toggle raw display
$73$ \( T^{42} \) Copy content Toggle raw display
$79$ \( T^{42} + 7 T^{41} + \cdots + 7 \) Copy content Toggle raw display
$83$ \( T^{42} \) Copy content Toggle raw display
$89$ \( T^{42} \) Copy content Toggle raw display
$97$ \( T^{42} \) Copy content Toggle raw display
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