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Properties

Label 882.4.g.bh
Level $882$
Weight $4$
Character orbit 882.g
Analytic conductor $52.040$
Analytic rank $0$
Dimension $4$
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] = [882,4,Mod(361,882)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(882, base_ring=CyclotomicField(6))
 
chi = DirichletCharacter(H, H._module([0, 4]))
 
N = Newforms(chi, 4, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("882.361");
 
S:= CuspForms(chi, 4);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 882 = 2 \cdot 3^{2} \cdot 7^{2} \)
Weight: \( k \) \(=\) \( 4 \)
Character orbit: \([\chi]\) \(=\) 882.g (of order \(3\), 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: \(52.0396846251\)
Analytic rank: \(0\)
Dimension: \(4\)
Relative dimension: \(2\) over \(\Q(\zeta_{3})\)
Coefficient field: \(\Q(\sqrt{-3}, \sqrt{58})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{4} + 58x^{2} + 3364 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{25}]\)
Coefficient ring index: \( 2^{2} \)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{3}]$

$q$-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 \(1,\beta_1,\beta_2,\beta_3\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + (2 \beta_{2} + 2) q^{2} + 4 \beta_{2} q^{4} + \beta_1 q^{5} - 8 q^{8}+O(q^{10}) \) Copy content Toggle raw display \( q + (2 \beta_{2} + 2) q^{2} + 4 \beta_{2} q^{4} + \beta_1 q^{5} - 8 q^{8} + (2 \beta_{3} + 2 \beta_1) q^{10} - 2 \beta_{2} q^{11} + 2 \beta_{3} q^{13} + ( - 16 \beta_{2} - 16) q^{16} + (3 \beta_{3} + 3 \beta_1) q^{17} - 10 \beta_1 q^{19} + 4 \beta_{3} q^{20} + 4 q^{22} + (30 \beta_{2} + 30) q^{23} + 107 \beta_{2} q^{25} - 4 \beta_1 q^{26} - 212 q^{29} + (14 \beta_{3} + 14 \beta_1) q^{31} - 32 \beta_{2} q^{32} + 6 \beta_{3} q^{34} + ( - 246 \beta_{2} - 246) q^{37} + ( - 20 \beta_{3} - 20 \beta_1) q^{38} - 8 \beta_1 q^{40} - 21 \beta_{3} q^{41} - 284 q^{43} + (8 \beta_{2} + 8) q^{44} + 60 \beta_{2} q^{46} + 4 \beta_1 q^{47} - 214 q^{50} + ( - 8 \beta_{3} - 8 \beta_1) q^{52} - 548 \beta_{2} q^{53} - 2 \beta_{3} q^{55} + ( - 424 \beta_{2} - 424) q^{58} + (44 \beta_{3} + 44 \beta_1) q^{59} + 34 \beta_1 q^{61} + 28 \beta_{3} q^{62} + 64 q^{64} + ( - 464 \beta_{2} - 464) q^{65} + 652 \beta_{2} q^{67} - 12 \beta_1 q^{68} - 770 q^{71} + ( - 64 \beta_{3} - 64 \beta_1) q^{73} - 492 \beta_{2} q^{74} - 40 \beta_{3} q^{76} + ( - 472 \beta_{2} - 472) q^{79} + ( - 16 \beta_{3} - 16 \beta_1) q^{80} + 42 \beta_1 q^{82} + 12 \beta_{3} q^{83} - 696 q^{85} + ( - 568 \beta_{2} - 568) q^{86} + 16 \beta_{2} q^{88} + 47 \beta_1 q^{89} - 120 q^{92} + (8 \beta_{3} + 8 \beta_1) q^{94} - 2320 \beta_{2} q^{95} - 20 \beta_{3} q^{97}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 4 q + 4 q^{2} - 8 q^{4} - 32 q^{8}+O(q^{10}) \) Copy content Toggle raw display \( 4 q + 4 q^{2} - 8 q^{4} - 32 q^{8} + 4 q^{11} - 32 q^{16} + 16 q^{22} + 60 q^{23} - 214 q^{25} - 848 q^{29} + 64 q^{32} - 492 q^{37} - 1136 q^{43} + 16 q^{44} - 120 q^{46} - 856 q^{50} + 1096 q^{53} - 848 q^{58} + 256 q^{64} - 928 q^{65} - 1304 q^{67} - 3080 q^{71} + 984 q^{74} - 944 q^{79} - 2784 q^{85} - 1136 q^{86} - 32 q^{88} - 480 q^{92} + 4640 q^{95}+O(q^{100}) \) Copy content Toggle raw display

Display 100 coefficients 10 coefficients

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{4} + 58x^{2} + 3364 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( 2\nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( \nu^{2} ) / 58 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( \nu^{3} ) / 29 \) Copy content Toggle raw display

Display \(\nu^j\) in terms of \(\beta_i\)

\(\nu\)\(=\) \( ( \beta_1 ) / 2 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( 58\beta_{2} \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( 29\beta_{3} \) Copy content Toggle raw display

Display \(\beta_i\) in terms of \(\nu^j\)

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/882\mathbb{Z}\right)^\times\).

\(n\) \(199\) \(785\)
\(\chi(n)\) \(-1 - \beta_{2}\) \(1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
361.1
−3.80789 − 6.59545i
3.80789 + 6.59545i
−3.80789 + 6.59545i
3.80789 − 6.59545i
1.00000 + 1.73205i 0 −2.00000 + 3.46410i −7.61577 − 13.1909i 0 0 −8.00000 0 15.2315 − 26.3818i
361.2 1.00000 + 1.73205i 0 −2.00000 + 3.46410i 7.61577 + 13.1909i 0 0 −8.00000 0 −15.2315 + 26.3818i
667.1 1.00000 − 1.73205i 0 −2.00000 − 3.46410i −7.61577 + 13.1909i 0 0 −8.00000 0 15.2315 + 26.3818i
667.2 1.00000 − 1.73205i 0 −2.00000 − 3.46410i 7.61577 − 13.1909i 0 0 −8.00000 0 −15.2315 − 26.3818i
\(n\): e.g. 2-40 or 990-1000
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

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 882.4.g.bh 4
3.b odd 2 1 882.4.g.bb 4
7.b odd 2 1 inner 882.4.g.bh 4
7.c even 3 1 882.4.a.x ✓ 2
7.c even 3 1 inner 882.4.g.bh 4
7.d odd 6 1 882.4.a.x ✓ 2
7.d odd 6 1 inner 882.4.g.bh 4
21.c even 2 1 882.4.g.bb 4
21.g even 6 1 882.4.a.bf yes 2
21.g even 6 1 882.4.g.bb 4
21.h odd 6 1 882.4.a.bf yes 2
21.h odd 6 1 882.4.g.bb 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
882.4.a.x ✓ 2 7.c even 3 1
882.4.a.x ✓ 2 7.d odd 6 1
882.4.a.bf yes 2 21.g even 6 1
882.4.a.bf yes 2 21.h odd 6 1
882.4.g.bb 4 3.b odd 2 1
882.4.g.bb 4 21.c even 2 1
882.4.g.bb 4 21.g even 6 1
882.4.g.bb 4 21.h odd 6 1
882.4.g.bh 4 1.a even 1 1 trivial
882.4.g.bh 4 7.b odd 2 1 inner
882.4.g.bh 4 7.c even 3 1 inner
882.4.g.bh 4 7.d odd 6 1 inner

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{4}^{\mathrm{new}}(882, [\chi])\):

\( T_{5}^{4} + 232T_{5}^{2} + 53824 \) Copy content Toggle raw display
\( T_{11}^{2} - 2T_{11} + 4 \) Copy content Toggle raw display
\( T_{13}^{2} - 928 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( (T^{2} - 2 T + 4)^{2} \) Copy content Toggle raw display
$3$ \( T^{4} \) Copy content Toggle raw display
$5$ \( T^{4} + 232 T^{2} + 53824 \) Copy content Toggle raw display
$7$ \( T^{4} \) Copy content Toggle raw display
$11$ \( (T^{2} - 2 T + 4)^{2} \) Copy content Toggle raw display
$13$ \( (T^{2} - 928)^{2} \) Copy content Toggle raw display
$17$ \( T^{4} + 2088 T^{2} + 4359744 \) Copy content Toggle raw display
$19$ \( T^{4} + 23200 T^{2} + 538240000 \) Copy content Toggle raw display
$23$ \( (T^{2} - 30 T + 900)^{2} \) Copy content Toggle raw display
$29$ \( (T + 212)^{4} \) Copy content Toggle raw display
$31$ \( T^{4} + \cdots + 2067702784 \) Copy content Toggle raw display
$37$ \( (T^{2} + 246 T + 60516)^{2} \) Copy content Toggle raw display
$41$ \( (T^{2} - 102312)^{2} \) Copy content Toggle raw display
$43$ \( (T + 284)^{4} \) Copy content Toggle raw display
$47$ \( T^{4} + 3712 T^{2} + 13778944 \) Copy content Toggle raw display
$53$ \( (T^{2} - 548 T + 300304)^{2} \) Copy content Toggle raw display
$59$ \( T^{4} + \cdots + 201737519104 \) Copy content Toggle raw display
$61$ \( T^{4} + \cdots + 71926948864 \) Copy content Toggle raw display
$67$ \( (T^{2} + 652 T + 425104)^{2} \) Copy content Toggle raw display
$71$ \( (T + 770)^{4} \) Copy content Toggle raw display
$73$ \( T^{4} + \cdots + 903016873984 \) Copy content Toggle raw display
$79$ \( (T^{2} + 472 T + 222784)^{2} \) Copy content Toggle raw display
$83$ \( (T^{2} - 33408)^{2} \) Copy content Toggle raw display
$89$ \( T^{4} + \cdots + 262643950144 \) Copy content Toggle raw display
$97$ \( (T^{2} - 92800)^{2} \) Copy content Toggle raw display
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