Properties

Label 624.2.c.a
Level $624$
Weight $2$
Character orbit 624.c
Analytic conductor $4.983$
Analytic rank $0$
Dimension $2$
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] = [624,2,Mod(337,624)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(624, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([0, 0, 0, 1]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("624.337");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 624 = 2^{4} \cdot 3 \cdot 13 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 624.c (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: \(4.98266508613\)
Analytic rank: \(0\)
Dimension: \(2\)
Coefficient field: \(\Q(\sqrt{-1}) \)
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: \(\Z[a_1, \ldots, a_{5}]\)
Coefficient ring index: \( 2 \)
Twist minimal: no (minimal twist has level 78)
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 \(\beta = 2i\). We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q - q^{3} + \beta q^{5} + \beta q^{7} + q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q - q^{3} + \beta q^{5} + \beta q^{7} + q^{9} + ( - \beta - 3) q^{13} - \beta q^{15} - 2 q^{17} + 3 \beta q^{19} - \beta q^{21} - 4 q^{23} + q^{25} - q^{27} - 10 q^{29} - 5 \beta q^{31} - 4 q^{35} + 4 \beta q^{37} + (\beta + 3) q^{39} + 5 \beta q^{41} - 4 q^{43} + \beta q^{45} + 6 \beta q^{47} + 3 q^{49} + 2 q^{51} - 6 q^{53} - 3 \beta q^{57} - 2 \beta q^{59} + 2 q^{61} + \beta q^{63} + ( - 3 \beta + 4) q^{65} + \beta q^{67} + 4 q^{69} - 2 \beta q^{73} - q^{75} + q^{81} + 2 \beta q^{83} - 2 \beta q^{85} + 10 q^{87} - 3 \beta q^{89} + ( - 3 \beta + 4) q^{91} + 5 \beta q^{93} - 12 q^{95} - 6 \beta q^{97} +O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2 q - 2 q^{3} + 2 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 2 q - 2 q^{3} + 2 q^{9} - 6 q^{13} - 4 q^{17} - 8 q^{23} + 2 q^{25} - 2 q^{27} - 20 q^{29} - 8 q^{35} + 6 q^{39} - 8 q^{43} + 6 q^{49} + 4 q^{51} - 12 q^{53} + 4 q^{61} + 8 q^{65} + 8 q^{69} - 2 q^{75} + 2 q^{81} + 20 q^{87} + 8 q^{91} - 24 q^{95}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/624\mathbb{Z}\right)^\times\).

\(n\) \(79\) \(145\) \(209\) \(469\)
\(\chi(n)\) \(1\) \(-1\) \(1\) \(1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
337.1
1.00000i
1.00000i
0 −1.00000 0 2.00000i 0 2.00000i 0 1.00000 0
337.2 0 −1.00000 0 2.00000i 0 2.00000i 0 1.00000 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
13.b even 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 624.2.c.a 2
3.b odd 2 1 1872.2.c.b 2
4.b odd 2 1 78.2.b.a 2
8.b even 2 1 2496.2.c.m 2
8.d odd 2 1 2496.2.c.f 2
12.b even 2 1 234.2.b.a 2
13.b even 2 1 inner 624.2.c.a 2
13.d odd 4 1 8112.2.a.g 1
13.d odd 4 1 8112.2.a.j 1
20.d odd 2 1 1950.2.b.c 2
20.e even 4 1 1950.2.f.d 2
20.e even 4 1 1950.2.f.g 2
28.d even 2 1 3822.2.c.d 2
39.d odd 2 1 1872.2.c.b 2
52.b odd 2 1 78.2.b.a 2
52.f even 4 1 1014.2.a.b 1
52.f even 4 1 1014.2.a.g 1
52.i odd 6 2 1014.2.i.c 4
52.j odd 6 2 1014.2.i.c 4
52.l even 12 2 1014.2.e.b 2
52.l even 12 2 1014.2.e.e 2
104.e even 2 1 2496.2.c.m 2
104.h odd 2 1 2496.2.c.f 2
156.h even 2 1 234.2.b.a 2
156.l odd 4 1 3042.2.a.c 1
156.l odd 4 1 3042.2.a.n 1
260.g odd 2 1 1950.2.b.c 2
260.p even 4 1 1950.2.f.d 2
260.p even 4 1 1950.2.f.g 2
364.h even 2 1 3822.2.c.d 2
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
78.2.b.a 2 4.b odd 2 1
78.2.b.a 2 52.b odd 2 1
234.2.b.a 2 12.b even 2 1
234.2.b.a 2 156.h even 2 1
624.2.c.a 2 1.a even 1 1 trivial
624.2.c.a 2 13.b even 2 1 inner
1014.2.a.b 1 52.f even 4 1
1014.2.a.g 1 52.f even 4 1
1014.2.e.b 2 52.l even 12 2
1014.2.e.e 2 52.l even 12 2
1014.2.i.c 4 52.i odd 6 2
1014.2.i.c 4 52.j odd 6 2
1872.2.c.b 2 3.b odd 2 1
1872.2.c.b 2 39.d odd 2 1
1950.2.b.c 2 20.d odd 2 1
1950.2.b.c 2 260.g odd 2 1
1950.2.f.d 2 20.e even 4 1
1950.2.f.d 2 260.p even 4 1
1950.2.f.g 2 20.e even 4 1
1950.2.f.g 2 260.p even 4 1
2496.2.c.f 2 8.d odd 2 1
2496.2.c.f 2 104.h odd 2 1
2496.2.c.m 2 8.b even 2 1
2496.2.c.m 2 104.e even 2 1
3042.2.a.c 1 156.l odd 4 1
3042.2.a.n 1 156.l odd 4 1
3822.2.c.d 2 28.d even 2 1
3822.2.c.d 2 364.h even 2 1
8112.2.a.g 1 13.d odd 4 1
8112.2.a.j 1 13.d odd 4 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(624, [\chi])\):

\( T_{5}^{2} + 4 \) Copy content Toggle raw display
\( T_{7}^{2} + 4 \) Copy content Toggle raw display
\( T_{11} \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{2} \) Copy content Toggle raw display
$3$ \( (T + 1)^{2} \) Copy content Toggle raw display
$5$ \( T^{2} + 4 \) Copy content Toggle raw display
$7$ \( T^{2} + 4 \) Copy content Toggle raw display
$11$ \( T^{2} \) Copy content Toggle raw display
$13$ \( T^{2} + 6T + 13 \) Copy content Toggle raw display
$17$ \( (T + 2)^{2} \) Copy content Toggle raw display
$19$ \( T^{2} + 36 \) Copy content Toggle raw display
$23$ \( (T + 4)^{2} \) Copy content Toggle raw display
$29$ \( (T + 10)^{2} \) Copy content Toggle raw display
$31$ \( T^{2} + 100 \) Copy content Toggle raw display
$37$ \( T^{2} + 64 \) Copy content Toggle raw display
$41$ \( T^{2} + 100 \) Copy content Toggle raw display
$43$ \( (T + 4)^{2} \) Copy content Toggle raw display
$47$ \( T^{2} + 144 \) Copy content Toggle raw display
$53$ \( (T + 6)^{2} \) Copy content Toggle raw display
$59$ \( T^{2} + 16 \) Copy content Toggle raw display
$61$ \( (T - 2)^{2} \) Copy content Toggle raw display
$67$ \( T^{2} + 4 \) Copy content Toggle raw display
$71$ \( T^{2} \) Copy content Toggle raw display
$73$ \( T^{2} + 16 \) Copy content Toggle raw display
$79$ \( T^{2} \) Copy content Toggle raw display
$83$ \( T^{2} + 16 \) Copy content Toggle raw display
$89$ \( T^{2} + 36 \) Copy content Toggle raw display
$97$ \( T^{2} + 144 \) Copy content Toggle raw display
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