Properties

Label 100.4.a.b
Level $100$
Weight $4$
Character orbit 100.a
Self dual yes
Analytic conductor $5.900$
Analytic rank $1$
Dimension $1$
CM no
Inner twists $1$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [100,4,Mod(1,100)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(100, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([0, 0]))
 
N = Newforms(chi, 4, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("100.1");
 
S:= CuspForms(chi, 4);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 100 = 2^{2} \cdot 5^{2} \)
Weight: \( k \) \(=\) \( 4 \)
Character orbit: \([\chi]\) \(=\) 100.a (trivial)

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: yes
Analytic conductor: \(5.90019100057\)
Analytic rank: \(1\)
Dimension: \(1\)
Coefficient field: \(\mathbb{Q}\)
Coefficient ring: \(\mathbb{Z}\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Fricke sign: \(-1\)
Sato-Tate group: $\mathrm{SU}(2)$

$q$-expansion

comment: q-expansion
 
sage: f.q_expansion() # note that sage often uses an isomorphic number field
 
gp: mfcoefs(f, 20)
 
\(f(q)\) \(=\) \( q - q^{3} - 26 q^{7} - 26 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q - q^{3} - 26 q^{7} - 26 q^{9} + 45 q^{11} - 44 q^{13} - 117 q^{17} - 91 q^{19} + 26 q^{21} + 18 q^{23} + 53 q^{27} + 144 q^{29} + 26 q^{31} - 45 q^{33} + 214 q^{37} + 44 q^{39} - 459 q^{41} + 460 q^{43} + 468 q^{47} + 333 q^{49} + 117 q^{51} - 558 q^{53} + 91 q^{57} - 72 q^{59} - 118 q^{61} + 676 q^{63} - 251 q^{67} - 18 q^{69} + 108 q^{71} - 299 q^{73} - 1170 q^{77} - 898 q^{79} + 649 q^{81} - 927 q^{83} - 144 q^{87} + 351 q^{89} + 1144 q^{91} - 26 q^{93} - 386 q^{97} - 1170 q^{99}+O(q^{100}) \) Copy content Toggle raw display

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
1.1
0
0 −1.00000 0 0 0 −26.0000 0 −26.0000 0
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(2\) \(-1\)
\(5\) \(1\)

Inner twists

This newform does not admit any (nontrivial) inner twists.

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 100.4.a.b 1
3.b odd 2 1 900.4.a.c 1
4.b odd 2 1 400.4.a.l 1
5.b even 2 1 100.4.a.c yes 1
5.c odd 4 2 100.4.c.b 2
8.b even 2 1 1600.4.a.bc 1
8.d odd 2 1 1600.4.a.y 1
15.d odd 2 1 900.4.a.p 1
15.e even 4 2 900.4.d.a 2
20.d odd 2 1 400.4.a.i 1
20.e even 4 2 400.4.c.l 2
40.e odd 2 1 1600.4.a.bd 1
40.f even 2 1 1600.4.a.x 1
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
100.4.a.b 1 1.a even 1 1 trivial
100.4.a.c yes 1 5.b even 2 1
100.4.c.b 2 5.c odd 4 2
400.4.a.i 1 20.d odd 2 1
400.4.a.l 1 4.b odd 2 1
400.4.c.l 2 20.e even 4 2
900.4.a.c 1 3.b odd 2 1
900.4.a.p 1 15.d odd 2 1
900.4.d.a 2 15.e even 4 2
1600.4.a.x 1 40.f even 2 1
1600.4.a.y 1 8.d odd 2 1
1600.4.a.bc 1 8.b even 2 1
1600.4.a.bd 1 40.e odd 2 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{3} + 1 \) acting on \(S_{4}^{\mathrm{new}}(\Gamma_0(100))\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T \) Copy content Toggle raw display
$3$ \( T + 1 \) Copy content Toggle raw display
$5$ \( T \) Copy content Toggle raw display
$7$ \( T + 26 \) Copy content Toggle raw display
$11$ \( T - 45 \) Copy content Toggle raw display
$13$ \( T + 44 \) Copy content Toggle raw display
$17$ \( T + 117 \) Copy content Toggle raw display
$19$ \( T + 91 \) Copy content Toggle raw display
$23$ \( T - 18 \) Copy content Toggle raw display
$29$ \( T - 144 \) Copy content Toggle raw display
$31$ \( T - 26 \) Copy content Toggle raw display
$37$ \( T - 214 \) Copy content Toggle raw display
$41$ \( T + 459 \) Copy content Toggle raw display
$43$ \( T - 460 \) Copy content Toggle raw display
$47$ \( T - 468 \) Copy content Toggle raw display
$53$ \( T + 558 \) Copy content Toggle raw display
$59$ \( T + 72 \) Copy content Toggle raw display
$61$ \( T + 118 \) Copy content Toggle raw display
$67$ \( T + 251 \) Copy content Toggle raw display
$71$ \( T - 108 \) Copy content Toggle raw display
$73$ \( T + 299 \) Copy content Toggle raw display
$79$ \( T + 898 \) Copy content Toggle raw display
$83$ \( T + 927 \) Copy content Toggle raw display
$89$ \( T - 351 \) Copy content Toggle raw display
$97$ \( T + 386 \) Copy content Toggle raw display
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