Properties

Label 2800.1.ce.b
Level $2800$
Weight $1$
Character orbit 2800.ce
Analytic conductor $1.397$
Analytic rank $0$
Dimension $2$
Projective image $D_{6}$
CM discriminant -20
Inner twists $4$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [2800,1,Mod(751,2800)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2800, base_ring=CyclotomicField(6))
 
chi = DirichletCharacter(H, H._module([3, 0, 0, 2]))
 
N = Newforms(chi, 1, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("2800.751");
 
S:= CuspForms(chi, 1);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 2800 = 2^{4} \cdot 5^{2} \cdot 7 \)
Weight: \( k \) \(=\) \( 1 \)
Character orbit: \([\chi]\) \(=\) 2800.ce (of order \(6\), 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: \(1.39738203537\)
Analytic rank: \(0\)
Dimension: \(2\)
Coefficient field: \(\Q(\zeta_{6})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{2} - x + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2, a_3]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 560)
Projective image: \(D_{6}\)
Projective field: Galois closure of 6.0.3841600.1

$q$-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.

\(f(q)\) \(=\) \( q + ( - \zeta_{6}^{2} + 1) q^{3} - \zeta_{6} q^{7} + ( - \zeta_{6}^{2} - \zeta_{6} + 1) q^{9} +O(q^{10}) \) Copy content Toggle raw display \( q + ( - \zeta_{6}^{2} + 1) q^{3} - \zeta_{6} q^{7} + ( - \zeta_{6}^{2} - \zeta_{6} + 1) q^{9} + ( - \zeta_{6} - 1) q^{21} + ( - \zeta_{6} - 1) q^{23} + ( - \zeta_{6}^{2} + \zeta_{6}) q^{27} + q^{29} + q^{41} + (\zeta_{6}^{2} + \zeta_{6}) q^{43} + \zeta_{6}^{2} q^{49} + \zeta_{6}^{2} q^{61} + (\zeta_{6}^{2} - \zeta_{6} - 1) q^{63} + ( - \zeta_{6}^{2} + 1) q^{67} + (\zeta_{6}^{2} - \zeta_{6} - 1) q^{69} + (\zeta_{6} + 1) q^{81} + ( - \zeta_{6}^{2} - \zeta_{6}) q^{83} + ( - \zeta_{6}^{2} + 1) q^{87} + \zeta_{6}^{2} q^{89} +O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2 q + 3 q^{3} - q^{7} + 2 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 2 q + 3 q^{3} - q^{7} + 2 q^{9} - 3 q^{21} - 3 q^{23} + 2 q^{29} + 2 q^{41} - q^{49} - q^{61} - 4 q^{63} + 3 q^{67} - 6 q^{69} - q^{81} + 3 q^{87} - q^{89}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/2800\mathbb{Z}\right)^\times\).

\(n\) \(351\) \(801\) \(2101\) \(2577\)
\(\chi(n)\) \(-1\) \(\zeta_{6}^{2}\) \(1\) \(1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
751.1
0.500000 + 0.866025i
0.500000 0.866025i
0 1.50000 0.866025i 0 0 0 −0.500000 0.866025i 0 1.00000 1.73205i 0
1551.1 0 1.50000 + 0.866025i 0 0 0 −0.500000 + 0.866025i 0 1.00000 + 1.73205i 0
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
20.d odd 2 1 CM by \(\Q(\sqrt{-5}) \)
28.g odd 6 1 inner
35.j even 6 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 2800.1.ce.b 2
4.b odd 2 1 2800.1.ce.a 2
5.b even 2 1 2800.1.ce.a 2
5.c odd 4 2 560.1.bt.a 4
7.c even 3 1 2800.1.ce.a 2
20.d odd 2 1 CM 2800.1.ce.b 2
20.e even 4 2 560.1.bt.a 4
28.g odd 6 1 inner 2800.1.ce.b 2
35.f even 4 2 3920.1.bt.c 4
35.j even 6 1 inner 2800.1.ce.b 2
35.k even 12 2 3920.1.j.d 2
35.k even 12 2 3920.1.bt.c 4
35.l odd 12 2 560.1.bt.a 4
35.l odd 12 2 3920.1.j.b 2
40.i odd 4 2 2240.1.bt.c 4
40.k even 4 2 2240.1.bt.c 4
140.j odd 4 2 3920.1.bt.c 4
140.p odd 6 1 2800.1.ce.a 2
140.w even 12 2 560.1.bt.a 4
140.w even 12 2 3920.1.j.b 2
140.x odd 12 2 3920.1.j.d 2
140.x odd 12 2 3920.1.bt.c 4
280.br even 12 2 2240.1.bt.c 4
280.bt odd 12 2 2240.1.bt.c 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
560.1.bt.a 4 5.c odd 4 2
560.1.bt.a 4 20.e even 4 2
560.1.bt.a 4 35.l odd 12 2
560.1.bt.a 4 140.w even 12 2
2240.1.bt.c 4 40.i odd 4 2
2240.1.bt.c 4 40.k even 4 2
2240.1.bt.c 4 280.br even 12 2
2240.1.bt.c 4 280.bt odd 12 2
2800.1.ce.a 2 4.b odd 2 1
2800.1.ce.a 2 5.b even 2 1
2800.1.ce.a 2 7.c even 3 1
2800.1.ce.a 2 140.p odd 6 1
2800.1.ce.b 2 1.a even 1 1 trivial
2800.1.ce.b 2 20.d odd 2 1 CM
2800.1.ce.b 2 28.g odd 6 1 inner
2800.1.ce.b 2 35.j even 6 1 inner
3920.1.j.b 2 35.l odd 12 2
3920.1.j.b 2 140.w even 12 2
3920.1.j.d 2 35.k even 12 2
3920.1.j.d 2 140.x odd 12 2
3920.1.bt.c 4 35.f even 4 2
3920.1.bt.c 4 35.k even 12 2
3920.1.bt.c 4 140.j odd 4 2
3920.1.bt.c 4 140.x odd 12 2

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{3}^{2} - 3T_{3} + 3 \) acting on \(S_{1}^{\mathrm{new}}(2800, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

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