Properties

Label 200.1.e.a
Level $200$
Weight $1$
Character orbit 200.e
Analytic conductor $0.100$
Analytic rank $0$
Dimension $2$
Projective image $D_{3}$
CM discriminant -8
Inner twists $4$

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Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [200,1,Mod(99,200)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(200, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([1, 1, 1]))
 
N = Newforms(chi, 1, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("200.99");
 
S:= CuspForms(chi, 1);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 200 = 2^{3} \cdot 5^{2} \)
Weight: \( k \) \(=\) \( 1 \)
Character orbit: \([\chi]\) \(=\) 200.e (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: \(0.0998130025266\)
Analytic rank: \(0\)
Dimension: \(2\)
Coefficient field: \(\Q(i)\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{2} + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2]\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Projective image: \(D_{3}\)
Projective field: Galois closure of 3.1.200.1

$q$-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.

\(f(q)\) \(=\) \( q - i q^{2} - i q^{3} - q^{4} - q^{6} + i q^{8} +O(q^{10}) \) Copy content Toggle raw display \( q - i q^{2} - i q^{3} - q^{4} - q^{6} + i q^{8} - q^{11} + i q^{12} + q^{16} + i q^{17} + q^{19} + i q^{22} + q^{24} - i q^{27} - i q^{32} + i q^{33} + q^{34} - i q^{38} - q^{41} + i q^{43} + q^{44} - i q^{48} - q^{49} + q^{51} - q^{54} - i q^{57} - q^{59} - q^{64} + q^{66} + i q^{67} - i q^{68} - i q^{73} - q^{76} - q^{81} + i q^{82} - i q^{83} + 2 q^{86} - i q^{88} + q^{89} - q^{96} - i q^{97} + i q^{98} +O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2 q - 2 q^{4} - 2 q^{6}+O(q^{10}) \) Copy content Toggle raw display \( 2 q - 2 q^{4} - 2 q^{6} - 2 q^{11} + 2 q^{16} + 2 q^{19} + 2 q^{24} + 2 q^{34} - 2 q^{41} + 2 q^{44} - 2 q^{49} + 2 q^{51} - 2 q^{54} - 4 q^{59} - 2 q^{64} + 2 q^{66} - 2 q^{76} - 2 q^{81} + 4 q^{86} + 2 q^{89} - 2 q^{96}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/200\mathbb{Z}\right)^\times\).

\(n\) \(101\) \(151\) \(177\)
\(\chi(n)\) \(-1\) \(-1\) \(-1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
99.1
1.00000i
1.00000i
1.00000i 1.00000i −1.00000 0 −1.00000 0 1.00000i 0 0
99.2 1.00000i 1.00000i −1.00000 0 −1.00000 0 1.00000i 0 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
8.d odd 2 1 CM by \(\Q(\sqrt{-2}) \)
5.b even 2 1 inner
40.e odd 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 200.1.e.a 2
3.b odd 2 1 1800.1.p.a 2
4.b odd 2 1 800.1.e.a 2
5.b even 2 1 inner 200.1.e.a 2
5.c odd 4 1 200.1.g.a 1
5.c odd 4 1 200.1.g.b yes 1
8.b even 2 1 800.1.e.a 2
8.d odd 2 1 CM 200.1.e.a 2
15.d odd 2 1 1800.1.p.a 2
15.e even 4 1 1800.1.g.a 1
15.e even 4 1 1800.1.g.b 1
20.d odd 2 1 800.1.e.a 2
20.e even 4 1 800.1.g.a 1
20.e even 4 1 800.1.g.b 1
24.f even 2 1 1800.1.p.a 2
40.e odd 2 1 inner 200.1.e.a 2
40.f even 2 1 800.1.e.a 2
40.i odd 4 1 800.1.g.a 1
40.i odd 4 1 800.1.g.b 1
40.k even 4 1 200.1.g.a 1
40.k even 4 1 200.1.g.b yes 1
120.m even 2 1 1800.1.p.a 2
120.q odd 4 1 1800.1.g.a 1
120.q odd 4 1 1800.1.g.b 1
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
200.1.e.a 2 1.a even 1 1 trivial
200.1.e.a 2 5.b even 2 1 inner
200.1.e.a 2 8.d odd 2 1 CM
200.1.e.a 2 40.e odd 2 1 inner
200.1.g.a 1 5.c odd 4 1
200.1.g.a 1 40.k even 4 1
200.1.g.b yes 1 5.c odd 4 1
200.1.g.b yes 1 40.k even 4 1
800.1.e.a 2 4.b odd 2 1
800.1.e.a 2 8.b even 2 1
800.1.e.a 2 20.d odd 2 1
800.1.e.a 2 40.f even 2 1
800.1.g.a 1 20.e even 4 1
800.1.g.a 1 40.i odd 4 1
800.1.g.b 1 20.e even 4 1
800.1.g.b 1 40.i odd 4 1
1800.1.g.a 1 15.e even 4 1
1800.1.g.a 1 120.q odd 4 1
1800.1.g.b 1 15.e even 4 1
1800.1.g.b 1 120.q odd 4 1
1800.1.p.a 2 3.b odd 2 1
1800.1.p.a 2 15.d odd 2 1
1800.1.p.a 2 24.f even 2 1
1800.1.p.a 2 120.m even 2 1

Hecke kernels

This newform subspace is the entire newspace \(S_{1}^{\mathrm{new}}(200, [\chi])\).

Hecke characteristic polynomials

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