Properties

Label 490.2.c.e
Level $490$
Weight $2$
Character orbit 490.c
Analytic conductor $3.913$
Analytic rank $0$
Dimension $4$
CM no
Inner twists $2$

Related objects

Downloads

Learn more

Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [490,2,Mod(99,490)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(490, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([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("490.99");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 490 = 2 \cdot 5 \cdot 7^{2} \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 490.c (of order \(2\), degree \(1\), 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: \(3.91266969904\)
Analytic rank: \(0\)
Dimension: \(4\)
Coefficient field: \(\Q(i, \sqrt{6})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{4} + 9 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{5}]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 70)
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.

\(f(q)\) \(=\) \( q + \beta_{2} q^{2} + (\beta_{3} + \beta_1) q^{3} - q^{4} + (\beta_{2} - \beta_1 - 1) q^{5} + (\beta_{3} - \beta_1) q^{6} - \beta_{2} q^{8} - 3 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + \beta_{2} q^{2} + (\beta_{3} + \beta_1) q^{3} - q^{4} + (\beta_{2} - \beta_1 - 1) q^{5} + (\beta_{3} - \beta_1) q^{6} - \beta_{2} q^{8} - 3 q^{9} + ( - \beta_{3} - \beta_{2} - 1) q^{10} + (2 \beta_{3} - 2 \beta_1) q^{11} + ( - \beta_{3} - \beta_1) q^{12} + ( - \beta_{3} - 2 \beta_{2} - \beta_1) q^{13} + ( - 3 \beta_{2} - 2 \beta_1 + 3) q^{15} + q^{16} + 2 \beta_{2} q^{17} - 3 \beta_{2} q^{18} + (\beta_{3} - \beta_1 + 4) q^{19} + ( - \beta_{2} + \beta_1 + 1) q^{20} + ( - 2 \beta_{3} - 2 \beta_1) q^{22} + (2 \beta_{3} - 2 \beta_{2} + 2 \beta_1) q^{23} + ( - \beta_{3} + \beta_1) q^{24} + ( - 2 \beta_{3} + \beta_{2} + 2 \beta_1) q^{25} + ( - \beta_{3} + \beta_1 + 2) q^{26} + (2 \beta_{3} - 2 \beta_1 - 2) q^{29} + ( - 2 \beta_{3} + 3 \beta_{2} + 3) q^{30} + (2 \beta_{3} - 2 \beta_1 - 4) q^{31} + \beta_{2} q^{32} - 12 \beta_{2} q^{33} - 2 q^{34} + 3 q^{36} - 2 \beta_{2} q^{37} + ( - \beta_{3} + 4 \beta_{2} - \beta_1) q^{38} + ( - 2 \beta_{3} + 2 \beta_1 + 6) q^{39} + (\beta_{3} + \beta_{2} + 1) q^{40} + (2 \beta_{3} - 2 \beta_1 + 6) q^{41} + ( - 2 \beta_{3} + 4 \beta_{2} - 2 \beta_1) q^{43} + ( - 2 \beta_{3} + 2 \beta_1) q^{44} + ( - 3 \beta_{2} + 3 \beta_1 + 3) q^{45} + (2 \beta_{3} - 2 \beta_1 + 2) q^{46} + (2 \beta_{3} + 4 \beta_{2} + 2 \beta_1) q^{47} + (\beta_{3} + \beta_1) q^{48} + (2 \beta_{3} + 2 \beta_1 - 1) q^{50} + (2 \beta_{3} - 2 \beta_1) q^{51} + (\beta_{3} + 2 \beta_{2} + \beta_1) q^{52} + ( - 2 \beta_{3} - 6 \beta_{2} - 2 \beta_1) q^{53} + ( - 4 \beta_{3} + 6 \beta_{2} + 6) q^{55} + (4 \beta_{3} - 6 \beta_{2} + 4 \beta_1) q^{57} + ( - 2 \beta_{3} - 2 \beta_{2} - 2 \beta_1) q^{58} + ( - \beta_{3} + \beta_1 - 4) q^{59} + (3 \beta_{2} + 2 \beta_1 - 3) q^{60} + ( - \beta_{3} + \beta_1 - 6) q^{61} + ( - 2 \beta_{3} - 4 \beta_{2} - 2 \beta_1) q^{62} - q^{64} + (2 \beta_{3} + 5 \beta_{2} + 2 \beta_1 - 1) q^{65} + 12 q^{66} + 8 \beta_{2} q^{67} - 2 \beta_{2} q^{68} + ( - 2 \beta_{3} + 2 \beta_1 - 12) q^{69} + ( - 2 \beta_{3} + 2 \beta_1 - 6) q^{71} + 3 \beta_{2} q^{72} + ( - 2 \beta_{3} + 2 \beta_{2} - 2 \beta_1) q^{73} + 2 q^{74} + (\beta_{3} + 12 \beta_{2} - \beta_1) q^{75} + ( - \beta_{3} + \beta_1 - 4) q^{76} + (2 \beta_{3} + 6 \beta_{2} + 2 \beta_1) q^{78} + (2 \beta_{3} - 2 \beta_1 - 2) q^{79} + (\beta_{2} - \beta_1 - 1) q^{80} - 9 q^{81} + ( - 2 \beta_{3} + 6 \beta_{2} - 2 \beta_1) q^{82} + (\beta_{3} + \beta_1) q^{83} + ( - 2 \beta_{3} - 2 \beta_{2} - 2) q^{85} + ( - 2 \beta_{3} + 2 \beta_1 - 4) q^{86} + ( - 2 \beta_{3} - 12 \beta_{2} - 2 \beta_1) q^{87} + (2 \beta_{3} + 2 \beta_1) q^{88} - 10 q^{89} + (3 \beta_{3} + 3 \beta_{2} + 3) q^{90} + ( - 2 \beta_{3} + 2 \beta_{2} - 2 \beta_1) q^{92} + ( - 4 \beta_{3} - 12 \beta_{2} - 4 \beta_1) q^{93} + (2 \beta_{3} - 2 \beta_1 - 4) q^{94} + ( - 2 \beta_{3} + 7 \beta_{2} - 4 \beta_1 - 1) q^{95} + (\beta_{3} - \beta_1) q^{96} + (4 \beta_{3} + 6 \beta_{2} + 4 \beta_1) q^{97} + ( - 6 \beta_{3} + 6 \beta_1) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 4 q - 4 q^{4} - 4 q^{5} - 12 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 4 q - 4 q^{4} - 4 q^{5} - 12 q^{9} - 4 q^{10} + 12 q^{15} + 4 q^{16} + 16 q^{19} + 4 q^{20} + 8 q^{26} - 8 q^{29} + 12 q^{30} - 16 q^{31} - 8 q^{34} + 12 q^{36} + 24 q^{39} + 4 q^{40} + 24 q^{41} + 12 q^{45} + 8 q^{46} - 4 q^{50} + 24 q^{55} - 16 q^{59} - 12 q^{60} - 24 q^{61} - 4 q^{64} - 4 q^{65} + 48 q^{66} - 48 q^{69} - 24 q^{71} + 8 q^{74} - 16 q^{76} - 8 q^{79} - 4 q^{80} - 36 q^{81} - 8 q^{85} - 16 q^{86} - 40 q^{89} + 12 q^{90} - 16 q^{94} - 4 q^{95}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{4} + 9 \) : Copy content Toggle raw display

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

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/490\mathbb{Z}\right)^\times\).

\(n\) \(101\) \(197\)
\(\chi(n)\) \(1\) \(-1\)

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
1.22474 1.22474i
−1.22474 + 1.22474i
−1.22474 1.22474i
1.22474 + 1.22474i
1.00000i 2.44949i −1.00000 −2.22474 + 0.224745i −2.44949 0 1.00000i −3.00000 0.224745 + 2.22474i
99.2 1.00000i 2.44949i −1.00000 0.224745 2.22474i 2.44949 0 1.00000i −3.00000 −2.22474 0.224745i
99.3 1.00000i 2.44949i −1.00000 0.224745 + 2.22474i 2.44949 0 1.00000i −3.00000 −2.22474 + 0.224745i
99.4 1.00000i 2.44949i −1.00000 −2.22474 0.224745i −2.44949 0 1.00000i −3.00000 0.224745 2.22474i
\(n\): 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 490.2.c.e 4
5.b even 2 1 inner 490.2.c.e 4
5.c odd 4 1 2450.2.a.bl 2
5.c odd 4 1 2450.2.a.bq 2
7.b odd 2 1 70.2.c.a 4
7.c even 3 2 490.2.i.f 8
7.d odd 6 2 490.2.i.c 8
21.c even 2 1 630.2.g.g 4
28.d even 2 1 560.2.g.e 4
35.c odd 2 1 70.2.c.a 4
35.f even 4 1 350.2.a.g 2
35.f even 4 1 350.2.a.h 2
35.i odd 6 2 490.2.i.c 8
35.j even 6 2 490.2.i.f 8
56.e even 2 1 2240.2.g.i 4
56.h odd 2 1 2240.2.g.j 4
84.h odd 2 1 5040.2.t.t 4
105.g even 2 1 630.2.g.g 4
105.k odd 4 1 3150.2.a.bs 2
105.k odd 4 1 3150.2.a.bt 2
140.c even 2 1 560.2.g.e 4
140.j odd 4 1 2800.2.a.bl 2
140.j odd 4 1 2800.2.a.bm 2
280.c odd 2 1 2240.2.g.j 4
280.n even 2 1 2240.2.g.i 4
420.o odd 2 1 5040.2.t.t 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
70.2.c.a 4 7.b odd 2 1
70.2.c.a 4 35.c odd 2 1
350.2.a.g 2 35.f even 4 1
350.2.a.h 2 35.f even 4 1
490.2.c.e 4 1.a even 1 1 trivial
490.2.c.e 4 5.b even 2 1 inner
490.2.i.c 8 7.d odd 6 2
490.2.i.c 8 35.i odd 6 2
490.2.i.f 8 7.c even 3 2
490.2.i.f 8 35.j even 6 2
560.2.g.e 4 28.d even 2 1
560.2.g.e 4 140.c even 2 1
630.2.g.g 4 21.c even 2 1
630.2.g.g 4 105.g even 2 1
2240.2.g.i 4 56.e even 2 1
2240.2.g.i 4 280.n even 2 1
2240.2.g.j 4 56.h odd 2 1
2240.2.g.j 4 280.c odd 2 1
2450.2.a.bl 2 5.c odd 4 1
2450.2.a.bq 2 5.c odd 4 1
2800.2.a.bl 2 140.j odd 4 1
2800.2.a.bm 2 140.j odd 4 1
3150.2.a.bs 2 105.k odd 4 1
3150.2.a.bt 2 105.k odd 4 1
5040.2.t.t 4 84.h odd 2 1
5040.2.t.t 4 420.o odd 2 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(490, [\chi])\):

\( T_{3}^{2} + 6 \) Copy content Toggle raw display
\( T_{11}^{2} - 24 \) Copy content Toggle raw display
\( T_{19}^{2} - 8T_{19} + 10 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( (T^{2} + 1)^{2} \) Copy content Toggle raw display
$3$ \( (T^{2} + 6)^{2} \) Copy content Toggle raw display
$5$ \( T^{4} + 4 T^{3} + 8 T^{2} + 20 T + 25 \) Copy content Toggle raw display
$7$ \( T^{4} \) Copy content Toggle raw display
$11$ \( (T^{2} - 24)^{2} \) Copy content Toggle raw display
$13$ \( T^{4} + 20T^{2} + 4 \) Copy content Toggle raw display
$17$ \( (T^{2} + 4)^{2} \) Copy content Toggle raw display
$19$ \( (T^{2} - 8 T + 10)^{2} \) Copy content Toggle raw display
$23$ \( T^{4} + 56T^{2} + 400 \) Copy content Toggle raw display
$29$ \( (T^{2} + 4 T - 20)^{2} \) Copy content Toggle raw display
$31$ \( (T^{2} + 8 T - 8)^{2} \) Copy content Toggle raw display
$37$ \( (T^{2} + 4)^{2} \) Copy content Toggle raw display
$41$ \( (T^{2} - 12 T + 12)^{2} \) Copy content Toggle raw display
$43$ \( T^{4} + 80T^{2} + 64 \) Copy content Toggle raw display
$47$ \( T^{4} + 80T^{2} + 64 \) Copy content Toggle raw display
$53$ \( T^{4} + 120T^{2} + 144 \) Copy content Toggle raw display
$59$ \( (T^{2} + 8 T + 10)^{2} \) Copy content Toggle raw display
$61$ \( (T^{2} + 12 T + 30)^{2} \) Copy content Toggle raw display
$67$ \( (T^{2} + 64)^{2} \) Copy content Toggle raw display
$71$ \( (T^{2} + 12 T + 12)^{2} \) Copy content Toggle raw display
$73$ \( T^{4} + 56T^{2} + 400 \) Copy content Toggle raw display
$79$ \( (T^{2} + 4 T - 20)^{2} \) Copy content Toggle raw display
$83$ \( (T^{2} + 6)^{2} \) Copy content Toggle raw display
$89$ \( (T + 10)^{4} \) Copy content Toggle raw display
$97$ \( T^{4} + 264T^{2} + 3600 \) Copy content Toggle raw display
show more
show less