Properties

Label 1764.3.c.h
Level $1764$
Weight $3$
Character orbit 1764.c
Analytic conductor $48.066$
Analytic rank $0$
Dimension $8$
CM no
Inner twists $4$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [1764,3,Mod(197,1764)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1764, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([0, 1, 0]))
 
N = Newforms(chi, 3, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("1764.197");
 
S:= CuspForms(chi, 3);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 1764 = 2^{2} \cdot 3^{2} \cdot 7^{2} \)
Weight: \( k \) \(=\) \( 3 \)
Character orbit: \([\chi]\) \(=\) 1764.c (of order \(2\), degree \(1\), 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: \(48.0655186332\)
Analytic rank: \(0\)
Dimension: \(8\)
Coefficient field: 8.0.224054542336.12
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{8} + 199x^{4} + 14641 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{13}]\)
Coefficient ring index: \( 2^{8}\cdot 3^{4} \)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{2}]$

$q$-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 \(1,\beta_1,\ldots,\beta_{7}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + \beta_{2} q^{5}+O(q^{10}) \) Copy content Toggle raw display \( q + \beta_{2} q^{5} + \beta_{5} q^{11} + 3 \beta_{3} q^{13} + (\beta_{2} - \beta_1) q^{17} + (\beta_{7} + 5 \beta_{3}) q^{19} + ( - \beta_{5} - 2 \beta_{4}) q^{23} + ( - \beta_{6} - 27) q^{25} + ( - \beta_{5} - 4 \beta_{4}) q^{29} + (\beta_{7} + 3 \beta_{3}) q^{31} + (\beta_{6} + 16) q^{37} + (\beta_{2} + 8 \beta_1) q^{41} + (\beta_{6} - 10) q^{43} + (4 \beta_{2} - 5 \beta_1) q^{47} + (4 \beta_{5} - 9 \beta_{4}) q^{53} + (\beta_{7} + 43 \beta_{3}) q^{55} + (4 \beta_{2} - 5 \beta_1) q^{59} + ( - \beta_{7} - 14 \beta_{3}) q^{61} + ( - 3 \beta_{5} - 3 \beta_{4}) q^{65} + (\beta_{6} - 48) q^{67} + ( - 3 \beta_{5} - 16 \beta_{4}) q^{71} + ( - \beta_{7} - 44 \beta_{3}) q^{73} + ( - 2 \beta_{6} - 70) q^{79} + (2 \beta_{2} + 18 \beta_1) q^{83} + ( - 2 \beta_{6} - 70) q^{85} + ( - 13 \beta_{2} - 8 \beta_1) q^{89} + ( - 14 \beta_{5} - 48 \beta_{4}) q^{95} + ( - 3 \beta_{7} + 50 \beta_{3}) q^{97}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q+O(q^{10}) \) Copy content Toggle raw display \( 8 q - 216 q^{25} + 128 q^{37} - 80 q^{43} - 384 q^{67} - 560 q^{79} - 560 q^{85}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{8} + 199x^{4} + 14641 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( -2\nu^{6} - 640\nu^{2} ) / 847 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( 3\nu^{6} + 242\nu^{4} + 960\nu^{2} + 24079 ) / 2541 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( 10\nu^{7} + 121\nu^{5} + 659\nu^{3} + 10769\nu ) / 27951 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( -10\nu^{7} + 121\nu^{5} - 659\nu^{3} + 10769\nu ) / 9317 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( 32\nu^{7} + 121\nu^{5} + 7699\nu^{3} + 66671\nu ) / 27951 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( -6\nu^{6} - 468\nu^{2} ) / 121 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( 32\nu^{7} - 121\nu^{5} + 7699\nu^{3} - 66671\nu ) / 9317 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( -\beta_{7} + 3\beta_{5} - \beta_{4} - 3\beta_{3} ) / 12 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( \beta_{6} - 21\beta_1 ) / 12 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( 5\beta_{7} + 15\beta_{5} + 16\beta_{4} - 48\beta_{3} ) / 6 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( ( 42\beta_{2} + 21\beta _1 - 398 ) / 4 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( 89\beta_{7} - 267\beta_{5} + 551\beta_{4} + 1653\beta_{3} ) / 12 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( ( -160\beta_{6} + 819\beta_1 ) / 6 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( ( -659\beta_{7} - 1977\beta_{5} - 7699\beta_{4} + 23097\beta_{3} ) / 12 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/1764\mathbb{Z}\right)^\times\).

\(n\) \(785\) \(883\) \(1081\)
\(\chi(n)\) \(-1\) \(1\) \(1\)

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.

comment: embeddings in the coefficient field
 
gp: mfembed(f)
 
Label   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
197.1
2.67196 1.96485i
−2.67196 + 1.96485i
−1.96485 2.67196i
1.96485 + 2.67196i
1.96485 2.67196i
−1.96485 + 2.67196i
−2.67196 1.96485i
2.67196 + 1.96485i
0 0 0 9.55744i 0 0 0 0 0
197.2 0 0 0 9.55744i 0 0 0 0 0
197.3 0 0 0 3.55744i 0 0 0 0 0
197.4 0 0 0 3.55744i 0 0 0 0 0
197.5 0 0 0 3.55744i 0 0 0 0 0
197.6 0 0 0 3.55744i 0 0 0 0 0
197.7 0 0 0 9.55744i 0 0 0 0 0
197.8 0 0 0 9.55744i 0 0 0 0 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 197.8
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
3.b odd 2 1 inner
7.b odd 2 1 inner
21.c even 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 1764.3.c.h 8
3.b odd 2 1 inner 1764.3.c.h 8
7.b odd 2 1 inner 1764.3.c.h 8
7.c even 3 2 1764.3.bk.g 16
7.d odd 6 2 1764.3.bk.g 16
21.c even 2 1 inner 1764.3.c.h 8
21.g even 6 2 1764.3.bk.g 16
21.h odd 6 2 1764.3.bk.g 16
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
1764.3.c.h 8 1.a even 1 1 trivial
1764.3.c.h 8 3.b odd 2 1 inner
1764.3.c.h 8 7.b odd 2 1 inner
1764.3.c.h 8 21.c even 2 1 inner
1764.3.bk.g 16 7.c even 3 2
1764.3.bk.g 16 7.d odd 6 2
1764.3.bk.g 16 21.g even 6 2
1764.3.bk.g 16 21.h odd 6 2

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{3}^{\mathrm{new}}(1764, [\chi])\):

\( T_{5}^{4} + 104T_{5}^{2} + 1156 \) Copy content Toggle raw display
\( T_{13}^{2} - 18 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{8} \) Copy content Toggle raw display
$3$ \( T^{8} \) Copy content Toggle raw display
$5$ \( (T^{4} + 104 T^{2} + 1156)^{2} \) Copy content Toggle raw display
$7$ \( T^{8} \) Copy content Toggle raw display
$11$ \( (T^{2} + 86)^{4} \) Copy content Toggle raw display
$13$ \( (T^{2} - 18)^{4} \) Copy content Toggle raw display
$17$ \( (T^{4} + 248 T^{2} + 1444)^{2} \) Copy content Toggle raw display
$19$ \( (T^{4} - 1648 T^{2} + 524176)^{2} \) Copy content Toggle raw display
$23$ \( (T^{4} + 316 T^{2} + 196)^{2} \) Copy content Toggle raw display
$29$ \( (T^{4} + 748 T^{2} + 40804)^{2} \) Copy content Toggle raw display
$31$ \( (T^{4} - 1584 T^{2} + 571536)^{2} \) Copy content Toggle raw display
$37$ \( (T^{2} - 32 T - 1292)^{4} \) Copy content Toggle raw display
$41$ \( (T^{4} + 4136 T^{2} + 3928324)^{2} \) Copy content Toggle raw display
$43$ \( (T^{2} + 20 T - 1448)^{4} \) Copy content Toggle raw display
$47$ \( (T^{4} + 4904 T^{2} + 1157776)^{2} \) Copy content Toggle raw display
$53$ \( (T^{4} + 5668 T^{2} + 6724)^{2} \) Copy content Toggle raw display
$59$ \( (T^{4} + 4904 T^{2} + 1157776)^{2} \) Copy content Toggle raw display
$61$ \( (T^{4} - 2332 T^{2} + 145924)^{2} \) Copy content Toggle raw display
$67$ \( (T^{2} + 96 T + 756)^{4} \) Copy content Toggle raw display
$71$ \( (T^{4} + 10764 T^{2} + 14699556)^{2} \) Copy content Toggle raw display
$73$ \( (T^{4} - 9292 T^{2} + 9597604)^{2} \) Copy content Toggle raw display
$79$ \( (T^{2} + 140 T - 1292)^{4} \) Copy content Toggle raw display
$83$ \( (T^{4} + 21152 T^{2} + 104693824)^{2} \) Copy content Toggle raw display
$89$ \( (T^{4} + 14696 T^{2} + 51638596)^{2} \) Copy content Toggle raw display
$97$ \( (T^{4} - 23932 T^{2} + 3865156)^{2} \) Copy content Toggle raw display
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