Properties

Label 3800.1.y.g
Level $3800$
Weight $1$
Character orbit 3800.y
Analytic conductor $1.896$
Analytic rank $0$
Dimension $8$
Projective image $D_{6}$
CM discriminant -8
Inner twists $16$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [3800,1,Mod(1443,3800)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(3800, base_ring=CyclotomicField(4))
 
chi = DirichletCharacter(H, H._module([2, 2, 3, 2]))
 
N = Newforms(chi, 1, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("3800.1443");
 
S:= CuspForms(chi, 1);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 3800 = 2^{3} \cdot 5^{2} \cdot 19 \)
Weight: \( k \) \(=\) \( 1 \)
Character orbit: \([\chi]\) \(=\) 3800.y (of order \(4\), degree \(2\), 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: \(1.89644704801\)
Analytic rank: \(0\)
Dimension: \(8\)
Relative dimension: \(4\) over \(\Q(i)\)
Coefficient field: \(\Q(\zeta_{24})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{8} - x^{4} + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{19}]\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Projective image: \(D_{6}\)
Projective field: Galois closure of 6.0.1371800000.3

$q$-expansion

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

The \(q\)-expansion and trace form are shown below.

\(f(q)\) \(=\) \( q - \zeta_{24}^{3} q^{2} + \zeta_{24}^{9} q^{3} + \zeta_{24}^{6} q^{4} + q^{6} - \zeta_{24}^{9} q^{8} +O(q^{10}) \) Copy content Toggle raw display \( q - \zeta_{24}^{3} q^{2} + \zeta_{24}^{9} q^{3} + \zeta_{24}^{6} q^{4} + q^{6} - \zeta_{24}^{9} q^{8} + q^{11} - \zeta_{24}^{3} q^{12} - q^{16} + ( - \zeta_{24}^{11} - \zeta_{24}^{7}) q^{17} + \zeta_{24}^{2} q^{19} - \zeta_{24}^{3} q^{22} + \zeta_{24}^{6} q^{24} - \zeta_{24}^{3} q^{27} + \zeta_{24}^{3} q^{32} + \zeta_{24}^{9} q^{33} + (\zeta_{24}^{10} - \zeta_{24}^{2}) q^{34} - \zeta_{24}^{5} q^{38} + ( - \zeta_{24}^{8} - \zeta_{24}^{4}) q^{41} + \zeta_{24}^{6} q^{44} - \zeta_{24}^{9} q^{48} - \zeta_{24}^{6} q^{49} + (\zeta_{24}^{8} + \zeta_{24}^{4}) q^{51} + \zeta_{24}^{6} q^{54} + \zeta_{24}^{11} q^{57} - \zeta_{24}^{6} q^{64} + q^{66} - \zeta_{24}^{3} q^{67} + (\zeta_{24}^{5} + \zeta_{24}) q^{68} + ( - \zeta_{24}^{5} - \zeta_{24}) q^{73} + \zeta_{24}^{8} q^{76} + q^{81} + (\zeta_{24}^{11} + \zeta_{24}^{7}) q^{82} + (\zeta_{24}^{5} + \zeta_{24}) q^{83} - \zeta_{24}^{9} q^{88} + ( - \zeta_{24}^{10} + \zeta_{24}^{2}) q^{89} - q^{96} + \zeta_{24}^{3} q^{97} + \zeta_{24}^{9} q^{98} +O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q + 8 q^{6}+O(q^{10}) \) Copy content Toggle raw display \( 8 q + 8 q^{6} + 8 q^{11} - 8 q^{16} + 8 q^{66} - 4 q^{76} + 8 q^{81} - 8 q^{96}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/3800\mathbb{Z}\right)^\times\).

\(n\) \(401\) \(951\) \(1901\) \(1977\)
\(\chi(n)\) \(-1\) \(-1\) \(-1\) \(-\zeta_{24}^{6}\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
1443.1
−0.258819 0.965926i
0.965926 + 0.258819i
−0.965926 0.258819i
0.258819 + 0.965926i
−0.258819 + 0.965926i
0.965926 0.258819i
−0.965926 + 0.258819i
0.258819 0.965926i
−0.707107 0.707107i −0.707107 + 0.707107i 1.00000i 0 1.00000 0 0.707107 0.707107i 0 0
1443.2 −0.707107 0.707107i −0.707107 + 0.707107i 1.00000i 0 1.00000 0 0.707107 0.707107i 0 0
1443.3 0.707107 + 0.707107i 0.707107 0.707107i 1.00000i 0 1.00000 0 −0.707107 + 0.707107i 0 0
1443.4 0.707107 + 0.707107i 0.707107 0.707107i 1.00000i 0 1.00000 0 −0.707107 + 0.707107i 0 0
2507.1 −0.707107 + 0.707107i −0.707107 0.707107i 1.00000i 0 1.00000 0 0.707107 + 0.707107i 0 0
2507.2 −0.707107 + 0.707107i −0.707107 0.707107i 1.00000i 0 1.00000 0 0.707107 + 0.707107i 0 0
2507.3 0.707107 0.707107i 0.707107 + 0.707107i 1.00000i 0 1.00000 0 −0.707107 0.707107i 0 0
2507.4 0.707107 0.707107i 0.707107 + 0.707107i 1.00000i 0 1.00000 0 −0.707107 0.707107i 0 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 1443.4
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
8.d odd 2 1 CM by \(\Q(\sqrt{-2}) \)
5.b even 2 1 inner
5.c odd 4 2 inner
19.b odd 2 1 inner
40.e odd 2 1 inner
40.k even 4 2 inner
95.d odd 2 1 inner
95.g even 4 2 inner
152.b even 2 1 inner
760.p even 2 1 inner
760.y odd 4 2 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 3800.1.y.g 8
5.b even 2 1 inner 3800.1.y.g 8
5.c odd 4 2 inner 3800.1.y.g 8
8.d odd 2 1 CM 3800.1.y.g 8
19.b odd 2 1 inner 3800.1.y.g 8
40.e odd 2 1 inner 3800.1.y.g 8
40.k even 4 2 inner 3800.1.y.g 8
95.d odd 2 1 inner 3800.1.y.g 8
95.g even 4 2 inner 3800.1.y.g 8
152.b even 2 1 inner 3800.1.y.g 8
760.p even 2 1 inner 3800.1.y.g 8
760.y odd 4 2 inner 3800.1.y.g 8
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
3800.1.y.g 8 1.a even 1 1 trivial
3800.1.y.g 8 5.b even 2 1 inner
3800.1.y.g 8 5.c odd 4 2 inner
3800.1.y.g 8 8.d odd 2 1 CM
3800.1.y.g 8 19.b odd 2 1 inner
3800.1.y.g 8 40.e odd 2 1 inner
3800.1.y.g 8 40.k even 4 2 inner
3800.1.y.g 8 95.d odd 2 1 inner
3800.1.y.g 8 95.g even 4 2 inner
3800.1.y.g 8 152.b even 2 1 inner
3800.1.y.g 8 760.p even 2 1 inner
3800.1.y.g 8 760.y odd 4 2 inner

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{1}^{\mathrm{new}}(3800, [\chi])\):

\( T_{3}^{4} + 1 \) Copy content Toggle raw display
\( T_{13} \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( (T^{4} + 1)^{2} \) Copy content Toggle raw display
$3$ \( (T^{4} + 1)^{2} \) Copy content Toggle raw display
$5$ \( T^{8} \) Copy content Toggle raw display
$7$ \( T^{8} \) Copy content Toggle raw display
$11$ \( (T - 1)^{8} \) Copy content Toggle raw display
$13$ \( T^{8} \) Copy content Toggle raw display
$17$ \( (T^{4} + 9)^{2} \) Copy content Toggle raw display
$19$ \( (T^{4} - T^{2} + 1)^{2} \) Copy content Toggle raw display
$23$ \( T^{8} \) Copy content Toggle raw display
$29$ \( T^{8} \) Copy content Toggle raw display
$31$ \( T^{8} \) Copy content Toggle raw display
$37$ \( T^{8} \) Copy content Toggle raw display
$41$ \( (T^{2} + 3)^{4} \) Copy content Toggle raw display
$43$ \( T^{8} \) Copy content Toggle raw display
$47$ \( T^{8} \) Copy content Toggle raw display
$53$ \( T^{8} \) Copy content Toggle raw display
$59$ \( T^{8} \) Copy content Toggle raw display
$61$ \( T^{8} \) Copy content Toggle raw display
$67$ \( (T^{4} + 1)^{2} \) Copy content Toggle raw display
$71$ \( T^{8} \) Copy content Toggle raw display
$73$ \( (T^{4} + 9)^{2} \) Copy content Toggle raw display
$79$ \( T^{8} \) Copy content Toggle raw display
$83$ \( (T^{4} + 9)^{2} \) Copy content Toggle raw display
$89$ \( (T^{2} - 3)^{4} \) Copy content Toggle raw display
$97$ \( (T^{4} + 16)^{2} \) Copy content Toggle raw display
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