Properties

Label 392.2.m.h
Level $392$
Weight $2$
Character orbit 392.m
Analytic conductor $3.130$
Analytic rank $0$
Dimension $16$
CM no
Inner twists $8$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [392,2,Mod(19,392)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(392, base_ring=CyclotomicField(6))
 
chi = DirichletCharacter(H, H._module([3, 3, 5]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("392.19");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 392 = 2^{3} \cdot 7^{2} \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 392.m (of order \(6\), degree \(2\), not 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: \(3.13013575923\)
Analytic rank: \(0\)
Dimension: \(16\)
Relative dimension: \(8\) over \(\Q(\zeta_{6})\)
Coefficient field: \(\mathbb{Q}[x]/(x^{16} + \cdots)\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{16} + 4x^{14} + 6x^{12} + 8x^{10} + 20x^{8} + 32x^{6} + 96x^{4} + 256x^{2} + 256 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{9}]\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{6}]$

$q$-expansion

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

Coefficients of the \(q\)-expansion are expressed in terms of a basis \(1,\beta_1,\ldots,\beta_{15}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + (\beta_{14} + \beta_{5}) q^{2} - \beta_{15} q^{3} + (\beta_{11} - \beta_{8} - \beta_{7} + \cdots + 1) q^{4}+ \cdots + ( - \beta_{14} + \beta_{11} + \beta_{5}) q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + (\beta_{14} + \beta_{5}) q^{2} - \beta_{15} q^{3} + (\beta_{11} - \beta_{8} - \beta_{7} + \cdots + 1) q^{4}+ \cdots + (3 \beta_{14} - 3 \beta_{7} + 3 \beta_{6} + \cdots + 9) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 16 q - 4 q^{2} + 4 q^{4} + 8 q^{8} - 8 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 16 q - 4 q^{2} + 4 q^{4} + 8 q^{8} - 8 q^{9} - 4 q^{16} + 4 q^{18} - 48 q^{22} - 56 q^{25} - 8 q^{30} + 36 q^{32} - 40 q^{36} + 64 q^{43} + 48 q^{44} + 40 q^{46} + 88 q^{50} - 16 q^{51} - 64 q^{57} - 40 q^{58} - 56 q^{60} - 104 q^{64} + 96 q^{65} + 16 q^{67} - 12 q^{72} + 8 q^{74} - 16 q^{78} + 24 q^{81} - 24 q^{86} - 24 q^{88} - 16 q^{92} + 96 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{16} + 4x^{14} + 6x^{12} + 8x^{10} + 20x^{8} + 32x^{6} + 96x^{4} + 256x^{2} + 256 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( \nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( \nu^{15} + 6\nu^{13} + 4\nu^{11} - 12\nu^{9} + 24\nu^{7} + 24\nu^{5} + 88\nu^{3} + 320\nu ) / 224 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( -5\nu^{15} - 44\nu^{13} - 6\nu^{11} - 24\nu^{9} - 148\nu^{7} - 64\nu^{5} - 384\nu^{3} - 2944\nu ) / 896 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( 5\nu^{14} - 12\nu^{12} + 6\nu^{10} + 24\nu^{8} - 76\nu^{6} + 64\nu^{4} + 384\nu^{2} - 1088 ) / 448 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( 3\nu^{14} - 3\nu^{12} - 2\nu^{10} + 6\nu^{8} - 12\nu^{6} - 12\nu^{4} + 96\nu^{2} - 384 ) / 224 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( 5\nu^{14} + 16\nu^{12} + 6\nu^{10} + 24\nu^{8} + 36\nu^{6} + 64\nu^{4} + 384\nu^{2} + 704 ) / 224 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( 5\nu^{14} + 9\nu^{12} + 6\nu^{10} + 38\nu^{8} + 36\nu^{6} + 36\nu^{4} + 272\nu^{2} + 480 ) / 224 \) Copy content Toggle raw display
\(\beta_{8}\)\(=\) \( ( 5\nu^{14} + 9\nu^{12} + 6\nu^{10} + 38\nu^{8} + 36\nu^{6} + 36\nu^{4} + 496\nu^{2} + 480 ) / 224 \) Copy content Toggle raw display
\(\beta_{9}\)\(=\) \( ( 3\nu^{15} + 18\nu^{13} + 12\nu^{11} + 20\nu^{9} + 72\nu^{7} + 72\nu^{5} + 264\nu^{3} + 960\nu ) / 224 \) Copy content Toggle raw display
\(\beta_{10}\)\(=\) \( ( 15\nu^{15} + 20\nu^{13} + 18\nu^{11} + 72\nu^{9} - 4\nu^{7} + 192\nu^{5} + 1152\nu^{3} + 768\nu ) / 896 \) Copy content Toggle raw display
\(\beta_{11}\)\(=\) \( ( 9\nu^{14} + 26\nu^{12} + 22\nu^{10} + 60\nu^{8} + 132\nu^{6} + 104\nu^{4} + 736\nu^{2} + 1536 ) / 224 \) Copy content Toggle raw display
\(\beta_{12}\)\(=\) \( ( 11\nu^{15} + 24\nu^{13} + 2\nu^{11} + 64\nu^{9} + 124\nu^{7} + 208\nu^{5} + 800\nu^{3} + 1280\nu ) / 448 \) Copy content Toggle raw display
\(\beta_{13}\)\(=\) \( ( -6\nu^{15} - 15\nu^{13} - 10\nu^{11} - 26\nu^{9} - 60\nu^{7} - 60\nu^{5} - 360\nu^{3} - 800\nu ) / 224 \) Copy content Toggle raw display
\(\beta_{14}\)\(=\) \( ( 29\nu^{14} + 76\nu^{12} + 46\nu^{10} + 184\nu^{8} + 388\nu^{6} + 416\nu^{4} + 2272\nu^{2} + 4352 ) / 448 \) Copy content Toggle raw display
\(\beta_{15}\)\(=\) \( ( 29\nu^{15} + 76\nu^{13} + 46\nu^{11} + 184\nu^{9} + 388\nu^{7} + 192\nu^{5} + 2272\nu^{3} + 4352\nu ) / 896 \) Copy content Toggle raw display
\(\nu\)\(=\) \( \beta_1 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( \beta_{8} - \beta_{7} \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( \beta_{15} + 2\beta_{13} + \beta_{10} + \beta_{2} \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( 2\beta_{14} - 2\beta_{11} - 2\beta_{8} - 2\beta_{5} + 2\beta_{4} \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( -2\beta_{15} + 2\beta_{12} + 2\beta_{9} + 2\beta_{3} + 2\beta_1 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( 2\beta_{14} - 2\beta_{7} - 4\beta_{6} + 2\beta_{5} - 2\beta_{4} - 4 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( 2\beta_{15} + 2\beta_{12} - 6\beta_{10} + 4\beta_{3} + 2\beta_{2} \) Copy content Toggle raw display
\(\nu^{8}\)\(=\) \( -4\beta_{11} + 4\beta_{8} + 12\beta_{7} - 4\beta_{6} - 8\beta_{5} - 8 \) Copy content Toggle raw display
\(\nu^{9}\)\(=\) \( 4\beta_{9} - 12\beta_{2} \) Copy content Toggle raw display
\(\nu^{10}\)\(=\) \( -12\beta_{14} + 24\beta_{11} - 12\beta_{8} - 4\beta_{5} + 12\beta_{4} \) Copy content Toggle raw display
\(\nu^{11}\)\(=\) \( -8\beta_{13} - 12\beta_{12} + 16\beta_{9} + 24\beta_{3} + 16\beta_1 \) Copy content Toggle raw display
\(\nu^{12}\)\(=\) \( -8\beta_{14} + 8\beta_{7} + 24\beta_{6} - 8\beta_{5} - 8\beta_{4} - 48 \) Copy content Toggle raw display
\(\nu^{13}\)\(=\) \( -8\beta_{15} - 8\beta_{12} + 16\beta_{10} - 40\beta_{3} - 8\beta_{2} - 72\beta_1 \) Copy content Toggle raw display
\(\nu^{14}\)\(=\) \( 16\beta_{11} - 56\beta_{8} + 8\beta_{7} + 16\beta_{6} + 80\beta_{5} + 80 \) Copy content Toggle raw display
\(\nu^{15}\)\(=\) \( -40\beta_{15} - 144\beta_{13} - 40\beta_{10} - 64\beta_{9} - 8\beta_{2} \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/392\mathbb{Z}\right)^\times\).

\(n\) \(197\) \(295\) \(297\)
\(\chi(n)\) \(-1\) \(-1\) \(-\beta_{5}\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
19.1
−0.349313 + 1.37039i
0.349313 1.37039i
−1.33546 + 0.465333i
1.33546 0.465333i
1.01214 0.987711i
−1.01214 + 0.987711i
−0.264742 1.38921i
0.264742 + 1.38921i
−0.349313 1.37039i
0.349313 + 1.37039i
−1.33546 0.465333i
1.33546 + 0.465333i
1.01214 + 0.987711i
−1.01214 0.987711i
−0.264742 + 1.38921i
0.264742 1.38921i
−1.24165 + 0.676979i −1.60021 + 0.923880i 1.08340 1.68114i −1.92538 + 3.33486i 1.36145 2.23044i 0 −0.207107 + 2.82083i 0.207107 0.358719i 0.133026 5.44419i
19.2 −1.24165 + 0.676979i 1.60021 0.923880i 1.08340 1.68114i 1.92538 3.33486i −1.36145 + 2.23044i 0 −0.207107 + 2.82083i 0.207107 0.358719i −0.133026 + 5.44419i
19.3 −1.10799 0.878843i −0.662827 + 0.382683i 0.455270 + 1.94749i 1.51423 2.62272i 1.07072 + 0.158513i 0 1.20711 2.55791i −1.20711 + 2.09077i −3.98271 + 1.57517i
19.4 −1.10799 0.878843i 0.662827 0.382683i 0.455270 + 1.94749i −1.51423 + 2.62272i −1.07072 0.158513i 0 1.20711 2.55791i −1.20711 + 2.09077i 3.98271 1.57517i
19.5 0.0345453 + 1.41379i −1.60021 + 0.923880i −1.99761 + 0.0976797i 1.92538 3.33486i −1.36145 2.23044i 0 −0.207107 2.82083i 0.207107 0.358719i 4.78132 + 2.60689i
19.6 0.0345453 + 1.41379i 1.60021 0.923880i −1.99761 + 0.0976797i −1.92538 + 3.33486i 1.36145 + 2.23044i 0 −0.207107 2.82083i 0.207107 0.358719i −4.78132 2.60689i
19.7 1.31509 + 0.520123i −0.662827 + 0.382683i 1.45894 + 1.36802i −1.51423 + 2.62272i −1.07072 + 0.158513i 0 1.20711 + 2.55791i −1.20711 + 2.09077i −3.35549 + 2.66154i
19.8 1.31509 + 0.520123i 0.662827 0.382683i 1.45894 + 1.36802i 1.51423 2.62272i 1.07072 0.158513i 0 1.20711 + 2.55791i −1.20711 + 2.09077i 3.35549 2.66154i
227.1 −1.24165 0.676979i −1.60021 0.923880i 1.08340 + 1.68114i −1.92538 3.33486i 1.36145 + 2.23044i 0 −0.207107 2.82083i 0.207107 + 0.358719i 0.133026 + 5.44419i
227.2 −1.24165 0.676979i 1.60021 + 0.923880i 1.08340 + 1.68114i 1.92538 + 3.33486i −1.36145 2.23044i 0 −0.207107 2.82083i 0.207107 + 0.358719i −0.133026 5.44419i
227.3 −1.10799 + 0.878843i −0.662827 0.382683i 0.455270 1.94749i 1.51423 + 2.62272i 1.07072 0.158513i 0 1.20711 + 2.55791i −1.20711 2.09077i −3.98271 1.57517i
227.4 −1.10799 + 0.878843i 0.662827 + 0.382683i 0.455270 1.94749i −1.51423 2.62272i −1.07072 + 0.158513i 0 1.20711 + 2.55791i −1.20711 2.09077i 3.98271 + 1.57517i
227.5 0.0345453 1.41379i −1.60021 0.923880i −1.99761 0.0976797i 1.92538 + 3.33486i −1.36145 + 2.23044i 0 −0.207107 + 2.82083i 0.207107 + 0.358719i 4.78132 2.60689i
227.6 0.0345453 1.41379i 1.60021 + 0.923880i −1.99761 0.0976797i −1.92538 3.33486i 1.36145 2.23044i 0 −0.207107 + 2.82083i 0.207107 + 0.358719i −4.78132 + 2.60689i
227.7 1.31509 0.520123i −0.662827 0.382683i 1.45894 1.36802i −1.51423 2.62272i −1.07072 0.158513i 0 1.20711 2.55791i −1.20711 2.09077i −3.35549 2.66154i
227.8 1.31509 0.520123i 0.662827 + 0.382683i 1.45894 1.36802i 1.51423 + 2.62272i 1.07072 + 0.158513i 0 1.20711 2.55791i −1.20711 2.09077i 3.35549 + 2.66154i
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 19.8
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
7.b odd 2 1 inner
7.c even 3 1 inner
7.d odd 6 1 inner
8.d odd 2 1 inner
56.e even 2 1 inner
56.k odd 6 1 inner
56.m even 6 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 392.2.m.h 16
4.b odd 2 1 1568.2.q.h 16
7.b odd 2 1 inner 392.2.m.h 16
7.c even 3 1 392.2.e.d 8
7.c even 3 1 inner 392.2.m.h 16
7.d odd 6 1 392.2.e.d 8
7.d odd 6 1 inner 392.2.m.h 16
8.b even 2 1 1568.2.q.h 16
8.d odd 2 1 inner 392.2.m.h 16
28.d even 2 1 1568.2.q.h 16
28.f even 6 1 1568.2.e.d 8
28.f even 6 1 1568.2.q.h 16
28.g odd 6 1 1568.2.e.d 8
28.g odd 6 1 1568.2.q.h 16
56.e even 2 1 inner 392.2.m.h 16
56.h odd 2 1 1568.2.q.h 16
56.j odd 6 1 1568.2.e.d 8
56.j odd 6 1 1568.2.q.h 16
56.k odd 6 1 392.2.e.d 8
56.k odd 6 1 inner 392.2.m.h 16
56.m even 6 1 392.2.e.d 8
56.m even 6 1 inner 392.2.m.h 16
56.p even 6 1 1568.2.e.d 8
56.p even 6 1 1568.2.q.h 16
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
392.2.e.d 8 7.c even 3 1
392.2.e.d 8 7.d odd 6 1
392.2.e.d 8 56.k odd 6 1
392.2.e.d 8 56.m even 6 1
392.2.m.h 16 1.a even 1 1 trivial
392.2.m.h 16 7.b odd 2 1 inner
392.2.m.h 16 7.c even 3 1 inner
392.2.m.h 16 7.d odd 6 1 inner
392.2.m.h 16 8.d odd 2 1 inner
392.2.m.h 16 56.e even 2 1 inner
392.2.m.h 16 56.k odd 6 1 inner
392.2.m.h 16 56.m even 6 1 inner
1568.2.e.d 8 28.f even 6 1
1568.2.e.d 8 28.g odd 6 1
1568.2.e.d 8 56.j odd 6 1
1568.2.e.d 8 56.p even 6 1
1568.2.q.h 16 4.b odd 2 1
1568.2.q.h 16 8.b even 2 1
1568.2.q.h 16 28.d even 2 1
1568.2.q.h 16 28.f even 6 1
1568.2.q.h 16 28.g odd 6 1
1568.2.q.h 16 56.h odd 2 1
1568.2.q.h 16 56.j odd 6 1
1568.2.q.h 16 56.p even 6 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(392, [\chi])\):

\( T_{3}^{8} - 4T_{3}^{6} + 14T_{3}^{4} - 8T_{3}^{2} + 4 \) Copy content Toggle raw display
\( T_{5}^{8} + 24T_{5}^{6} + 440T_{5}^{4} + 3264T_{5}^{2} + 18496 \) Copy content Toggle raw display
\( T_{23}^{8} - 40T_{23}^{6} + 1328T_{23}^{4} - 10880T_{23}^{2} + 73984 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( (T^{8} + 2 T^{7} + T^{6} + \cdots + 16)^{2} \) Copy content Toggle raw display
$3$ \( (T^{8} - 4 T^{6} + 14 T^{4} + \cdots + 4)^{2} \) Copy content Toggle raw display
$5$ \( (T^{8} + 24 T^{6} + \cdots + 18496)^{2} \) Copy content Toggle raw display
$7$ \( T^{16} \) Copy content Toggle raw display
$11$ \( (T^{4} + 18 T^{2} + 324)^{4} \) Copy content Toggle raw display
$13$ \( (T^{4} - 24 T^{2} + 136)^{4} \) Copy content Toggle raw display
$17$ \( (T^{8} - 20 T^{6} + 398 T^{4} + \cdots + 4)^{2} \) Copy content Toggle raw display
$19$ \( (T^{8} - 20 T^{6} + \cdots + 9604)^{2} \) Copy content Toggle raw display
$23$ \( (T^{8} - 40 T^{6} + \cdots + 73984)^{2} \) Copy content Toggle raw display
$29$ \( (T^{4} + 40 T^{2} + 272)^{4} \) Copy content Toggle raw display
$31$ \( (T^{8} + 112 T^{6} + \cdots + 295936)^{2} \) Copy content Toggle raw display
$37$ \( (T^{8} - 56 T^{6} + \cdots + 73984)^{2} \) Copy content Toggle raw display
$41$ \( (T^{4} + 52 T^{2} + 98)^{4} \) Copy content Toggle raw display
$43$ \( (T^{2} - 8 T + 14)^{8} \) Copy content Toggle raw display
$47$ \( (T^{8} + 96 T^{6} + \cdots + 4734976)^{2} \) Copy content Toggle raw display
$53$ \( (T^{8} - 112 T^{6} + \cdots + 1183744)^{2} \) Copy content Toggle raw display
$59$ \( (T^{8} - 116 T^{6} + \cdots + 4)^{2} \) Copy content Toggle raw display
$61$ \( (T^{8} + 56 T^{6} + \cdots + 18496)^{2} \) Copy content Toggle raw display
$67$ \( (T^{2} - 2 T + 4)^{8} \) Copy content Toggle raw display
$71$ \( (T^{4} + 464 T^{2} + 53312)^{4} \) Copy content Toggle raw display
$73$ \( (T^{8} - 20 T^{6} + \cdots + 9604)^{2} \) Copy content Toggle raw display
$79$ \( (T^{8} - 160 T^{6} + \cdots + 18939904)^{2} \) Copy content Toggle raw display
$83$ \( (T^{4} + 100 T^{2} + 1250)^{4} \) Copy content Toggle raw display
$89$ \( (T^{8} - 100 T^{6} + \cdots + 334084)^{2} \) Copy content Toggle raw display
$97$ \( (T^{4} + 324 T^{2} + 13122)^{4} \) Copy content Toggle raw display
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