Properties

Label 804.2.ba.a
Level $804$
Weight $2$
Character orbit 804.ba
Analytic conductor $6.420$
Analytic rank $0$
Dimension $20$
CM discriminant -3
Inner twists $4$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [804,2,Mod(41,804)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(804, base_ring=CyclotomicField(66))
 
chi = DirichletCharacter(H, H._module([0, 33, 53]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("804.41");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 804 = 2^{2} \cdot 3 \cdot 67 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 804.ba (of order \(66\), 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: \(6.41997232251\)
Analytic rank: \(0\)
Dimension: \(20\)
Coefficient field: \(\Q(\zeta_{33})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{20} - x^{19} + x^{17} - x^{16} + x^{14} - x^{13} + x^{11} - x^{10} + x^{9} - x^{7} + x^{6} - x^{4} + x^{3} - x + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{7}]\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Sato-Tate group: $\mathrm{U}(1)[D_{66}]$

$q$-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 primitive root of unity \(\zeta_{33}\). We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + ( - \zeta_{33}^{12} - 2 \zeta_{33}) q^{3} + ( - \zeta_{33}^{19} + 4 \zeta_{33}^{17} + \cdots + 1) q^{7}+ \cdots + (3 \zeta_{33}^{13} + 3 \zeta_{33}^{2}) q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + ( - \zeta_{33}^{12} - 2 \zeta_{33}) q^{3} + ( - \zeta_{33}^{19} + 4 \zeta_{33}^{17} + \cdots + 1) q^{7}+ \cdots + ( - 3 \zeta_{33}^{19} + 3 \zeta_{33}^{18} + \cdots + 3) q^{97}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 20 q + 6 q^{7} + 6 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 20 q + 6 q^{7} + 6 q^{9} + 9 q^{13} - 8 q^{19} + 6 q^{21} + 10 q^{25} - 3 q^{31} + 10 q^{37} - 9 q^{39} - 5 q^{49} + 141 q^{57} + 27 q^{61} + 147 q^{63} + 11 q^{67} - 180 q^{73} - 166 q^{79} - 18 q^{81} - 36 q^{91} - 3 q^{93} + 33 q^{97}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/804\mathbb{Z}\right)^\times\).

\(n\) \(269\) \(337\) \(403\)
\(\chi(n)\) \(-1\) \(-\zeta_{33}^{4}\) \(1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
41.1
−0.888835 0.458227i
0.723734 + 0.690079i
−0.995472 + 0.0950560i
−0.995472 0.0950560i
0.0475819 0.998867i
0.928368 0.371662i
−0.786053 + 0.618159i
−0.786053 0.618159i
−0.327068 0.945001i
0.580057 + 0.814576i
−0.888835 + 0.458227i
0.580057 0.814576i
0.981929 0.189251i
0.928368 + 0.371662i
0.723734 0.690079i
0.0475819 + 0.998867i
0.235759 + 0.971812i
−0.327068 + 0.945001i
0.981929 + 0.189251i
0.235759 0.971812i
0 0.936417 + 1.45709i 0 0 0 −0.502989 5.26754i 0 −1.24625 + 2.72890i 0
101.1 0 −0.487975 1.66189i 0 0 0 1.00786 1.95498i 0 −2.52376 + 1.62192i 0
113.1 0 1.57553 + 0.719520i 0 0 0 3.27565 + 1.13371i 0 1.96458 + 2.26725i 0
185.1 0 1.57553 0.719520i 0 0 0 3.27565 1.13371i 0 1.96458 2.26725i 0
197.1 0 −0.936417 + 1.45709i 0 0 0 −0.614593 0.437650i 0 −1.24625 2.72890i 0
221.1 0 −1.71442 0.246497i 0 0 0 4.93365 1.19689i 0 2.87848 + 0.845198i 0
233.1 0 1.71442 0.246497i 0 0 0 0.518680 0.543976i 0 2.87848 0.845198i 0
245.1 0 1.71442 + 0.246497i 0 0 0 0.518680 + 0.543976i 0 2.87848 + 0.845198i 0
281.1 0 1.30900 + 1.13425i 0 0 0 1.65416 4.13190i 0 0.426945 + 2.96946i 0
329.1 0 −1.57553 0.719520i 0 0 0 −0.842599 4.37182i 0 1.96458 + 2.26725i 0
353.1 0 0.936417 1.45709i 0 0 0 −0.502989 + 5.26754i 0 −1.24625 2.72890i 0
413.1 0 −1.57553 + 0.719520i 0 0 0 −0.842599 + 4.37182i 0 1.96458 2.26725i 0
497.1 0 −1.30900 + 1.13425i 0 0 0 −1.35800 + 1.72684i 0 0.426945 2.96946i 0
593.1 0 −1.71442 + 0.246497i 0 0 0 4.93365 + 1.19689i 0 2.87848 0.845198i 0
605.1 0 −0.487975 + 1.66189i 0 0 0 1.00786 + 1.95498i 0 −2.52376 1.62192i 0
653.1 0 −0.936417 1.45709i 0 0 0 −0.614593 + 0.437650i 0 −1.24625 + 2.72890i 0
677.1 0 0.487975 1.66189i 0 0 0 −5.07182 0.241600i 0 −2.52376 1.62192i 0
701.1 0 1.30900 1.13425i 0 0 0 1.65416 + 4.13190i 0 0.426945 2.96946i 0
749.1 0 −1.30900 1.13425i 0 0 0 −1.35800 1.72684i 0 0.426945 + 2.96946i 0
785.1 0 0.487975 + 1.66189i 0 0 0 −5.07182 + 0.241600i 0 −2.52376 + 1.62192i 0
\(n\): 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
3.b odd 2 1 CM by \(\Q(\sqrt{-3}) \)
67.h odd 66 1 inner
201.p even 66 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 804.2.ba.a 20
3.b odd 2 1 CM 804.2.ba.a 20
67.h odd 66 1 inner 804.2.ba.a 20
201.p even 66 1 inner 804.2.ba.a 20
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
804.2.ba.a 20 1.a even 1 1 trivial
804.2.ba.a 20 3.b odd 2 1 CM
804.2.ba.a 20 67.h odd 66 1 inner
804.2.ba.a 20 201.p even 66 1 inner

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{5} \) acting on \(S_{2}^{\mathrm{new}}(804, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{20} \) Copy content Toggle raw display
$3$ \( T^{20} - 3 T^{18} + \cdots + 59049 \) Copy content Toggle raw display
$5$ \( T^{20} \) Copy content Toggle raw display
$7$ \( T^{20} + \cdots + 659102929 \) Copy content Toggle raw display
$11$ \( T^{20} \) Copy content Toggle raw display
$13$ \( T^{20} + \cdots + 78236005849 \) Copy content Toggle raw display
$17$ \( T^{20} \) Copy content Toggle raw display
$19$ \( T^{20} + \cdots + 338632050241 \) Copy content Toggle raw display
$23$ \( T^{20} \) Copy content Toggle raw display
$29$ \( T^{20} \) Copy content Toggle raw display
$31$ \( T^{20} + \cdots + 33\!\cdots\!61 \) Copy content Toggle raw display
$37$ \( T^{20} + \cdots + 61\!\cdots\!29 \) Copy content Toggle raw display
$41$ \( T^{20} \) Copy content Toggle raw display
$43$ \( T^{20} + \cdots + 12\!\cdots\!89 \) Copy content Toggle raw display
$47$ \( T^{20} \) Copy content Toggle raw display
$53$ \( T^{20} \) Copy content Toggle raw display
$59$ \( T^{20} \) Copy content Toggle raw display
$61$ \( T^{20} + \cdots + 41\!\cdots\!61 \) Copy content Toggle raw display
$67$ \( T^{20} + \cdots + 18\!\cdots\!49 \) Copy content Toggle raw display
$71$ \( T^{20} \) Copy content Toggle raw display
$73$ \( T^{20} + \cdots + 25\!\cdots\!89 \) Copy content Toggle raw display
$79$ \( T^{20} + \cdots + 17\!\cdots\!41 \) Copy content Toggle raw display
$83$ \( T^{20} \) Copy content Toggle raw display
$89$ \( T^{20} \) Copy content Toggle raw display
$97$ \( T^{20} + \cdots + 71\!\cdots\!49 \) Copy content Toggle raw display
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