Properties

Label 2800.2.g.r
Level $2800$
Weight $2$
Character orbit 2800.g
Analytic conductor $22.358$
Analytic rank $0$
Dimension $4$
CM no
Inner twists $2$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [2800,2,Mod(449,2800)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2800, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([0, 0, 1, 0]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("2800.449");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 2800 = 2^{4} \cdot 5^{2} \cdot 7 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 2800.g (of order \(2\), degree \(1\), 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: \(22.3581125660\)
Analytic rank: \(0\)
Dimension: \(4\)
Coefficient field: \(\Q(i, \sqrt{33})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{4} + 17x^{2} + 64 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{7}]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 280)
Sato-Tate group: $\mathrm{SU}(2)[C_{2}]$

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

\(f(q)\) \(=\) \( q + \beta_1 q^{3} + \beta_{2} q^{7} + (\beta_{3} - 6) q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + \beta_1 q^{3} + \beta_{2} q^{7} + (\beta_{3} - 6) q^{9} + ( - \beta_{3} - 3) q^{11} + ( - 2 \beta_{2} - \beta_1) q^{13} + (2 \beta_{2} - \beta_1) q^{17} + ( - 2 \beta_{3} + 2) q^{19} + ( - \beta_{3} + 1) q^{21} - 2 \beta_1 q^{23} + (8 \beta_{2} - 3 \beta_1) q^{27} + (\beta_{3} + 1) q^{29} + 8 q^{31} + ( - 8 \beta_{2} - 3 \beta_1) q^{33} - 2 \beta_{2} q^{37} + (\beta_{3} + 7) q^{39} + 2 \beta_{3} q^{41} + ( - 4 \beta_{2} - 2 \beta_1) q^{43} + 3 \beta_1 q^{47} - q^{49} + ( - 3 \beta_{3} + 11) q^{51} + ( - 6 \beta_{2} - 2 \beta_1) q^{53} + ( - 16 \beta_{2} + 2 \beta_1) q^{57} + 8 q^{59} + ( - 2 \beta_{3} + 4) q^{61} + ( - 5 \beta_{2} + \beta_1) q^{63} + 4 \beta_{2} q^{67} + ( - 2 \beta_{3} + 18) q^{69} - 8 q^{71} + 6 \beta_{2} q^{73} + ( - 4 \beta_{2} - \beta_1) q^{77} + (3 \beta_{3} + 5) q^{79} + ( - 8 \beta_{3} + 17) q^{81} - 4 \beta_1 q^{83} + (8 \beta_{2} + \beta_1) q^{87} + ( - 2 \beta_{3} - 8) q^{89} + (\beta_{3} + 1) q^{91} + 8 \beta_1 q^{93} + (2 \beta_{2} - 5 \beta_1) q^{97} + (2 \beta_{3} + 10) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 4 q - 22 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 4 q - 22 q^{9} - 14 q^{11} + 4 q^{19} + 2 q^{21} + 6 q^{29} + 32 q^{31} + 30 q^{39} + 4 q^{41} - 4 q^{49} + 38 q^{51} + 32 q^{59} + 12 q^{61} + 68 q^{69} - 32 q^{71} + 26 q^{79} + 52 q^{81} - 36 q^{89} + 6 q^{91} + 44 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{4} + 17x^{2} + 64 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( \nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( \nu^{3} + 9\nu ) / 8 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( \nu^{2} + 9 \) Copy content Toggle raw display
\(\nu\)\(=\) \( \beta_1 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( \beta_{3} - 9 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( 8\beta_{2} - 9\beta_1 \) Copy content Toggle raw display

Character values

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

\(n\) \(351\) \(801\) \(2101\) \(2577\)
\(\chi(n)\) \(1\) \(1\) \(1\) \(-1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
449.1
3.37228i
2.37228i
2.37228i
3.37228i
0 3.37228i 0 0 0 1.00000i 0 −8.37228 0
449.2 0 2.37228i 0 0 0 1.00000i 0 −2.62772 0
449.3 0 2.37228i 0 0 0 1.00000i 0 −2.62772 0
449.4 0 3.37228i 0 0 0 1.00000i 0 −8.37228 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
5.b even 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 2800.2.g.r 4
4.b odd 2 1 1400.2.g.i 4
5.b even 2 1 inner 2800.2.g.r 4
5.c odd 4 1 560.2.a.h 2
5.c odd 4 1 2800.2.a.bk 2
15.e even 4 1 5040.2.a.by 2
20.d odd 2 1 1400.2.g.i 4
20.e even 4 1 280.2.a.c 2
20.e even 4 1 1400.2.a.r 2
35.f even 4 1 3920.2.a.bt 2
40.i odd 4 1 2240.2.a.bg 2
40.k even 4 1 2240.2.a.bk 2
60.l odd 4 1 2520.2.a.x 2
140.j odd 4 1 1960.2.a.s 2
140.j odd 4 1 9800.2.a.bu 2
140.w even 12 2 1960.2.q.t 4
140.x odd 12 2 1960.2.q.r 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
280.2.a.c 2 20.e even 4 1
560.2.a.h 2 5.c odd 4 1
1400.2.a.r 2 20.e even 4 1
1400.2.g.i 4 4.b odd 2 1
1400.2.g.i 4 20.d odd 2 1
1960.2.a.s 2 140.j odd 4 1
1960.2.q.r 4 140.x odd 12 2
1960.2.q.t 4 140.w even 12 2
2240.2.a.bg 2 40.i odd 4 1
2240.2.a.bk 2 40.k even 4 1
2520.2.a.x 2 60.l odd 4 1
2800.2.a.bk 2 5.c odd 4 1
2800.2.g.r 4 1.a even 1 1 trivial
2800.2.g.r 4 5.b even 2 1 inner
3920.2.a.bt 2 35.f even 4 1
5040.2.a.by 2 15.e even 4 1
9800.2.a.bu 2 140.j odd 4 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(2800, [\chi])\):

\( T_{3}^{4} + 17T_{3}^{2} + 64 \) Copy content Toggle raw display
\( T_{11}^{2} + 7T_{11} + 4 \) Copy content Toggle raw display
\( T_{13}^{4} + 21T_{13}^{2} + 36 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{4} \) Copy content Toggle raw display
$3$ \( T^{4} + 17T^{2} + 64 \) Copy content Toggle raw display
$5$ \( T^{4} \) Copy content Toggle raw display
$7$ \( (T^{2} + 1)^{2} \) Copy content Toggle raw display
$11$ \( (T^{2} + 7 T + 4)^{2} \) Copy content Toggle raw display
$13$ \( T^{4} + 21T^{2} + 36 \) Copy content Toggle raw display
$17$ \( T^{4} + 29T^{2} + 4 \) Copy content Toggle raw display
$19$ \( (T^{2} - 2 T - 32)^{2} \) Copy content Toggle raw display
$23$ \( T^{4} + 68T^{2} + 1024 \) Copy content Toggle raw display
$29$ \( (T^{2} - 3 T - 6)^{2} \) Copy content Toggle raw display
$31$ \( (T - 8)^{4} \) Copy content Toggle raw display
$37$ \( (T^{2} + 4)^{2} \) Copy content Toggle raw display
$41$ \( (T^{2} - 2 T - 32)^{2} \) Copy content Toggle raw display
$43$ \( T^{4} + 84T^{2} + 576 \) Copy content Toggle raw display
$47$ \( T^{4} + 153T^{2} + 5184 \) Copy content Toggle raw display
$53$ \( T^{4} + 116T^{2} + 64 \) Copy content Toggle raw display
$59$ \( (T - 8)^{4} \) Copy content Toggle raw display
$61$ \( (T^{2} - 6 T - 24)^{2} \) Copy content Toggle raw display
$67$ \( (T^{2} + 16)^{2} \) Copy content Toggle raw display
$71$ \( (T + 8)^{4} \) Copy content Toggle raw display
$73$ \( (T^{2} + 36)^{2} \) Copy content Toggle raw display
$79$ \( (T^{2} - 13 T - 32)^{2} \) Copy content Toggle raw display
$83$ \( T^{4} + 272 T^{2} + 16384 \) Copy content Toggle raw display
$89$ \( (T^{2} + 18 T + 48)^{2} \) Copy content Toggle raw display
$97$ \( T^{4} + 453 T^{2} + 34596 \) Copy content Toggle raw display
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