Properties

Label 380.2.d.a
Level $380$
Weight $2$
Character orbit 380.d
Analytic conductor $3.034$
Analytic rank $0$
Dimension $16$
CM discriminant -95
Inner twists $8$

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Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [380,2,Mod(379,380)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(380, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([1, 1, 1]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("380.379");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 380 = 2^{2} \cdot 5 \cdot 19 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 380.d (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: \(3.03431527681\)
Analytic rank: \(0\)
Dimension: \(16\)
Coefficient field: \(\mathbb{Q}[x]/(x^{16} - \cdots)\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{16} - 13x^{8} + 256 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{5}]\)
Coefficient ring index: \( 2^{11} \)
Twist minimal: yes
Sato-Tate group: $\mathrm{U}(1)[D_{2}]$

$q$-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 \(1,\beta_1,\ldots,\beta_{15}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + \beta_1 q^{2} - \beta_{5} q^{3} + \beta_{2} q^{4} - \beta_{6} q^{5} + (\beta_{9} + \beta_{6} - \beta_{4}) q^{6} + \beta_{3} q^{8} + (\beta_{13} + \beta_{9} - \beta_{2} - 3) q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + \beta_1 q^{2} - \beta_{5} q^{3} + \beta_{2} q^{4} - \beta_{6} q^{5} + (\beta_{9} + \beta_{6} - \beta_{4}) q^{6} + \beta_{3} q^{8} + (\beta_{13} + \beta_{9} - \beta_{2} - 3) q^{9} - \beta_{10} q^{10} + ( - \beta_{13} + \beta_{9} - \beta_{2}) q^{11} + (\beta_{11} + \beta_{10} + \cdots - \beta_{5}) q^{12}+ \cdots + (3 \beta_{13} - 3 \beta_{9} + 4 \beta_{8} + \cdots + 2) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 16 q - 48 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 16 q - 48 q^{9} + 8 q^{24} + 80 q^{25} + 24 q^{26} - 40 q^{30} - 56 q^{36} + 72 q^{44} - 112 q^{49} + 88 q^{54} - 104 q^{66} - 120 q^{80} + 144 q^{81} + 136 q^{96}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{16} - 13x^{8} + 256 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( \nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( \nu^{2} \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( \nu^{3} \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( \nu^{12} + 19\nu^{4} ) / 48 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( \nu^{13} + 4\nu^{11} + 19\nu^{5} - 20\nu^{3} ) / 96 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( -\nu^{12} + 29\nu^{4} ) / 48 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( -\nu^{13} + 4\nu^{11} - 19\nu^{5} - 20\nu^{3} ) / 96 \) Copy content Toggle raw display
\(\beta_{8}\)\(=\) \( ( \nu^{8} - 8 ) / 3 \) Copy content Toggle raw display
\(\beta_{9}\)\(=\) \( ( -\nu^{14} - 19\nu^{6} ) / 96 \) Copy content Toggle raw display
\(\beta_{10}\)\(=\) \( ( -\nu^{13} + 29\nu^{5} ) / 48 \) Copy content Toggle raw display
\(\beta_{11}\)\(=\) \( ( -\nu^{15} - 19\nu^{7} ) / 96 \) Copy content Toggle raw display
\(\beta_{12}\)\(=\) \( ( -3\nu^{15} + 64\nu^{9} + 39\nu^{7} - 320\nu ) / 384 \) Copy content Toggle raw display
\(\beta_{13}\)\(=\) \( ( 3\nu^{14} + 16\nu^{10} - 39\nu^{6} - 80\nu^{2} ) / 192 \) Copy content Toggle raw display
\(\beta_{14}\)\(=\) \( ( -3\nu^{14} + 16\nu^{10} + 39\nu^{6} - 80\nu^{2} ) / 192 \) Copy content Toggle raw display
\(\beta_{15}\)\(=\) \( ( \nu^{15} - 13\nu^{7} ) / 64 \) Copy content Toggle raw display
\(\nu\)\(=\) \( \beta_1 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( \beta_{2} \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( \beta_{3} \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( \beta_{6} + \beta_{4} \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( \beta_{10} - \beta_{7} + \beta_{5} \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( \beta_{14} - \beta_{13} - 3\beta_{9} \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( -2\beta_{15} - 3\beta_{11} \) Copy content Toggle raw display
\(\nu^{8}\)\(=\) \( 3\beta_{8} + 8 \) Copy content Toggle raw display
\(\nu^{9}\)\(=\) \( 3\beta_{15} + 6\beta_{12} + 5\beta_1 \) Copy content Toggle raw display
\(\nu^{10}\)\(=\) \( 6\beta_{14} + 6\beta_{13} + 5\beta_{2} \) Copy content Toggle raw display
\(\nu^{11}\)\(=\) \( 12\beta_{7} + 12\beta_{5} + 5\beta_{3} \) Copy content Toggle raw display
\(\nu^{12}\)\(=\) \( -19\beta_{6} + 29\beta_{4} \) Copy content Toggle raw display
\(\nu^{13}\)\(=\) \( -19\beta_{10} - 29\beta_{7} + 29\beta_{5} \) Copy content Toggle raw display
\(\nu^{14}\)\(=\) \( -19\beta_{14} + 19\beta_{13} - 39\beta_{9} \) Copy content Toggle raw display
\(\nu^{15}\)\(=\) \( 38\beta_{15} - 39\beta_{11} \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/380\mathbb{Z}\right)^\times\).

\(n\) \(21\) \(77\) \(191\)
\(\chi(n)\) \(-1\) \(-1\) \(-1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
379.1
−1.39956 0.203022i
−1.39956 + 0.203022i
−1.13320 0.846083i
−1.13320 + 0.846083i
−0.846083 1.13320i
−0.846083 + 1.13320i
−0.203022 1.39956i
−0.203022 + 1.39956i
0.203022 1.39956i
0.203022 + 1.39956i
0.846083 1.13320i
0.846083 + 1.13320i
1.13320 0.846083i
1.13320 + 0.846083i
1.39956 0.203022i
1.39956 + 0.203022i
−1.39956 0.203022i 3.27727i 1.91756 + 0.568286i −2.23607 0.665359 4.58675i 0 −2.56838 1.18466i −7.74048 3.12952 + 0.453972i
379.2 −1.39956 + 0.203022i 3.27727i 1.91756 0.568286i −2.23607 0.665359 + 4.58675i 0 −2.56838 + 1.18466i −7.74048 3.12952 0.453972i
379.3 −1.13320 0.846083i 1.52380i 0.568286 + 1.91756i 2.23607 1.28926 1.72677i 0 0.978437 2.65380i 0.678024 −2.53391 1.89190i
379.4 −1.13320 + 0.846083i 1.52380i 0.568286 1.91756i 2.23607 1.28926 + 1.72677i 0 0.978437 + 2.65380i 0.678024 −2.53391 + 1.89190i
379.5 −0.846083 1.13320i 3.11095i −0.568286 + 1.91756i 2.23607 −3.52533 + 2.63212i 0 2.65380 0.978437i −6.67802 −1.89190 2.53391i
379.6 −0.846083 + 1.13320i 3.11095i −0.568286 1.91756i 2.23607 −3.52533 2.63212i 0 2.65380 + 0.978437i −6.67802 −1.89190 + 2.53391i
379.7 −0.203022 1.39956i 1.12228i −1.91756 + 0.568286i −2.23607 1.57071 0.227849i 0 1.18466 + 2.56838i 1.74048 0.453972 + 3.12952i
379.8 −0.203022 + 1.39956i 1.12228i −1.91756 0.568286i −2.23607 1.57071 + 0.227849i 0 1.18466 2.56838i 1.74048 0.453972 3.12952i
379.9 0.203022 1.39956i 1.12228i −1.91756 0.568286i −2.23607 1.57071 + 0.227849i 0 −1.18466 + 2.56838i 1.74048 −0.453972 + 3.12952i
379.10 0.203022 + 1.39956i 1.12228i −1.91756 + 0.568286i −2.23607 1.57071 0.227849i 0 −1.18466 2.56838i 1.74048 −0.453972 3.12952i
379.11 0.846083 1.13320i 3.11095i −0.568286 1.91756i 2.23607 −3.52533 2.63212i 0 −2.65380 0.978437i −6.67802 1.89190 2.53391i
379.12 0.846083 + 1.13320i 3.11095i −0.568286 + 1.91756i 2.23607 −3.52533 + 2.63212i 0 −2.65380 + 0.978437i −6.67802 1.89190 + 2.53391i
379.13 1.13320 0.846083i 1.52380i 0.568286 1.91756i 2.23607 1.28926 + 1.72677i 0 −0.978437 2.65380i 0.678024 2.53391 1.89190i
379.14 1.13320 + 0.846083i 1.52380i 0.568286 + 1.91756i 2.23607 1.28926 1.72677i 0 −0.978437 + 2.65380i 0.678024 2.53391 + 1.89190i
379.15 1.39956 0.203022i 3.27727i 1.91756 0.568286i −2.23607 0.665359 + 4.58675i 0 2.56838 1.18466i −7.74048 −3.12952 + 0.453972i
379.16 1.39956 + 0.203022i 3.27727i 1.91756 + 0.568286i −2.23607 0.665359 4.58675i 0 2.56838 + 1.18466i −7.74048 −3.12952 0.453972i
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 379.16
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
95.d odd 2 1 CM by \(\Q(\sqrt{-95}) \)
4.b odd 2 1 inner
5.b even 2 1 inner
19.b odd 2 1 inner
20.d odd 2 1 inner
76.d even 2 1 inner
380.d even 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 380.2.d.a 16
4.b odd 2 1 inner 380.2.d.a 16
5.b even 2 1 inner 380.2.d.a 16
19.b odd 2 1 inner 380.2.d.a 16
20.d odd 2 1 inner 380.2.d.a 16
76.d even 2 1 inner 380.2.d.a 16
95.d odd 2 1 CM 380.2.d.a 16
380.d even 2 1 inner 380.2.d.a 16
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
380.2.d.a 16 1.a even 1 1 trivial
380.2.d.a 16 4.b odd 2 1 inner
380.2.d.a 16 5.b even 2 1 inner
380.2.d.a 16 19.b odd 2 1 inner
380.2.d.a 16 20.d odd 2 1 inner
380.2.d.a 16 76.d even 2 1 inner
380.2.d.a 16 95.d odd 2 1 CM
380.2.d.a 16 380.d even 2 1 inner

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{3}^{8} + 24T_{3}^{6} + 180T_{3}^{4} + 432T_{3}^{2} + 304 \) acting on \(S_{2}^{\mathrm{new}}(380, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{16} - 13T^{8} + 256 \) Copy content Toggle raw display
$3$ \( (T^{8} + 24 T^{6} + \cdots + 304)^{2} \) Copy content Toggle raw display
$5$ \( (T^{2} - 5)^{8} \) Copy content Toggle raw display
$7$ \( T^{16} \) Copy content Toggle raw display
$11$ \( (T^{4} + 44 T^{2} + 304)^{4} \) Copy content Toggle raw display
$13$ \( (T^{8} - 104 T^{6} + \cdots + 109744)^{2} \) Copy content Toggle raw display
$17$ \( T^{16} \) Copy content Toggle raw display
$19$ \( (T^{2} + 19)^{8} \) Copy content Toggle raw display
$23$ \( T^{16} \) Copy content Toggle raw display
$29$ \( T^{16} \) Copy content Toggle raw display
$31$ \( T^{16} \) Copy content Toggle raw display
$37$ \( (T^{8} - 296 T^{6} + \cdots + 511024)^{2} \) Copy content Toggle raw display
$41$ \( T^{16} \) Copy content Toggle raw display
$43$ \( T^{16} \) Copy content Toggle raw display
$47$ \( T^{16} \) Copy content Toggle raw display
$53$ \( (T^{8} - 424 T^{6} + \cdots + 30935344)^{2} \) Copy content Toggle raw display
$59$ \( T^{16} \) Copy content Toggle raw display
$61$ \( (T^{4} - 244 T^{2} + 304)^{4} \) Copy content Toggle raw display
$67$ \( (T^{8} + 536 T^{6} + \cdots + 43666864)^{2} \) Copy content Toggle raw display
$71$ \( T^{16} \) Copy content Toggle raw display
$73$ \( T^{16} \) Copy content Toggle raw display
$79$ \( T^{16} \) Copy content Toggle raw display
$83$ \( T^{16} \) Copy content Toggle raw display
$89$ \( T^{16} \) Copy content Toggle raw display
$97$ \( (T^{8} - 776 T^{6} + \cdots + 116480944)^{2} \) Copy content Toggle raw display
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