Properties

Label 4900.2.e.u
Level $4900$
Weight $2$
Character orbit 4900.e
Analytic conductor $39.127$
Analytic rank $0$
Dimension $8$
CM no
Inner twists $4$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [4900,2,Mod(2549,4900)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(4900, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([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("4900.2549");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 4900 = 2^{2} \cdot 5^{2} \cdot 7^{2} \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 4900.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: \(39.1266969904\)
Analytic rank: \(0\)
Dimension: \(8\)
Coefficient field: 8.0.40960000.1
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{8} + 7x^{4} + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{23}]\)
Coefficient ring index: \( 2^{4} \)
Twist minimal: yes
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 \(1,\beta_1,\ldots,\beta_{7}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + ( - \beta_{7} + \beta_{5}) q^{3} + \beta_{2} q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + ( - \beta_{7} + \beta_{5}) q^{3} + \beta_{2} q^{9} + (2 \beta_{2} - 1) q^{11} + \beta_{7} q^{13} + (2 \beta_{7} - 2 \beta_{5}) q^{17} + ( - \beta_{6} - 2 \beta_{3}) q^{19} + ( - 2 \beta_{4} - \beta_1) q^{23} - 2 \beta_{7} q^{27} + (\beta_{2} + 2) q^{29} + (\beta_{6} + 3 \beta_{3}) q^{31} + (3 \beta_{7} - 7 \beta_{5}) q^{33} + ( - \beta_{4} + 2 \beta_1) q^{37} + 2 q^{39} + (2 \beta_{6} + \beta_{3}) q^{41} + ( - \beta_{4} - 6 \beta_1) q^{43} + (4 \beta_{7} - \beta_{5}) q^{47} + ( - 2 \beta_{2} + 6) q^{51} + (3 \beta_{4} - 5 \beta_1) q^{53} + ( - 3 \beta_{4} + 7 \beta_1) q^{57} + (3 \beta_{6} - \beta_{3}) q^{59} + ( - 6 \beta_{6} + 7 \beta_{3}) q^{61} + (4 \beta_{4} - 5 \beta_1) q^{67} + (4 \beta_{6} + \beta_{3}) q^{69} + ( - 3 \beta_{2} + 10) q^{71} + (7 \beta_{7} - \beta_{5}) q^{73} + ( - 2 \beta_{2} + 7) q^{79} + (3 \beta_{2} - 4) q^{81} + ( - \beta_{7} + 8 \beta_{5}) q^{83} + ( - \beta_{7} - \beta_{5}) q^{87} + ( - 9 \beta_{6} + 3 \beta_{3}) q^{89} + (4 \beta_{4} - 10 \beta_1) q^{93} + (9 \beta_{7} - 6 \beta_{5}) q^{97} + ( - \beta_{2} + 10) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q+O(q^{10}) \) Copy content Toggle raw display \( 8 q - 8 q^{11} + 16 q^{29} + 16 q^{39} + 48 q^{51} + 80 q^{71} + 56 q^{79} - 32 q^{81} + 80 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{8} + 7x^{4} + 1 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( \nu^{6} + 8\nu^{2} ) / 3 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( 2\nu^{4} + 7 ) / 3 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( -\nu^{7} - 8\nu^{3} + 3\nu ) / 3 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( \nu^{6} + 6\nu^{2} \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( 2\nu^{7} + \nu^{5} + 13\nu^{3} + 5\nu ) / 3 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( 2\nu^{7} - \nu^{5} + 13\nu^{3} - 5\nu ) / 3 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( 3\nu^{7} + \nu^{5} + 21\nu^{3} + 8\nu ) / 3 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_{7} - \beta_{5} + \beta_{3} ) / 2 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( -\beta_{4} + 3\beta_1 ) / 2 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( 2\beta_{7} - \beta_{6} - 3\beta_{5} - 2\beta_{3} ) / 2 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( ( 3\beta_{2} - 7 ) / 2 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( -5\beta_{7} - 3\beta_{6} + 8\beta_{5} - 5\beta_{3} ) / 2 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( 4\beta_{4} - 9\beta_1 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( ( -13\beta_{7} + 8\beta_{6} + 21\beta_{5} + 13\beta_{3} ) / 2 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/4900\mathbb{Z}\right)^\times\).

\(n\) \(101\) \(1177\) \(2451\)
\(\chi(n)\) \(1\) \(-1\) \(1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
2549.1
1.14412 + 1.14412i
−1.14412 + 1.14412i
0.437016 + 0.437016i
−0.437016 + 0.437016i
0.437016 0.437016i
−0.437016 0.437016i
1.14412 1.14412i
−1.14412 1.14412i
0 2.28825i 0 0 0 0 0 −2.23607 0
2549.2 0 2.28825i 0 0 0 0 0 −2.23607 0
2549.3 0 0.874032i 0 0 0 0 0 2.23607 0
2549.4 0 0.874032i 0 0 0 0 0 2.23607 0
2549.5 0 0.874032i 0 0 0 0 0 2.23607 0
2549.6 0 0.874032i 0 0 0 0 0 2.23607 0
2549.7 0 2.28825i 0 0 0 0 0 −2.23607 0
2549.8 0 2.28825i 0 0 0 0 0 −2.23607 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 2549.8
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
5.b even 2 1 inner
7.b odd 2 1 inner
35.c odd 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 4900.2.e.u 8
5.b even 2 1 inner 4900.2.e.u 8
5.c odd 4 1 4900.2.a.bg 4
5.c odd 4 1 4900.2.a.bi yes 4
7.b odd 2 1 inner 4900.2.e.u 8
35.c odd 2 1 inner 4900.2.e.u 8
35.f even 4 1 4900.2.a.bg 4
35.f even 4 1 4900.2.a.bi yes 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
4900.2.a.bg 4 5.c odd 4 1
4900.2.a.bg 4 35.f even 4 1
4900.2.a.bi yes 4 5.c odd 4 1
4900.2.a.bi yes 4 35.f even 4 1
4900.2.e.u 8 1.a even 1 1 trivial
4900.2.e.u 8 5.b even 2 1 inner
4900.2.e.u 8 7.b odd 2 1 inner
4900.2.e.u 8 35.c odd 2 1 inner

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(4900, [\chi])\):

\( T_{3}^{4} + 6T_{3}^{2} + 4 \) Copy content Toggle raw display
\( T_{11}^{2} + 2T_{11} - 19 \) Copy content Toggle raw display
\( T_{19}^{4} - 36T_{19}^{2} + 4 \) Copy content Toggle raw display
\( T_{31}^{4} - 70T_{31}^{2} + 100 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{8} \) Copy content Toggle raw display
$3$ \( (T^{4} + 6 T^{2} + 4)^{2} \) Copy content Toggle raw display
$5$ \( T^{8} \) Copy content Toggle raw display
$7$ \( T^{8} \) Copy content Toggle raw display
$11$ \( (T^{2} + 2 T - 19)^{4} \) Copy content Toggle raw display
$13$ \( (T^{4} + 6 T^{2} + 4)^{2} \) Copy content Toggle raw display
$17$ \( (T^{4} + 24 T^{2} + 64)^{2} \) Copy content Toggle raw display
$19$ \( (T^{4} - 36 T^{2} + 4)^{2} \) Copy content Toggle raw display
$23$ \( (T^{4} + 42 T^{2} + 361)^{2} \) Copy content Toggle raw display
$29$ \( (T^{2} - 4 T - 1)^{4} \) Copy content Toggle raw display
$31$ \( (T^{4} - 70 T^{2} + 100)^{2} \) Copy content Toggle raw display
$37$ \( (T^{4} + 18 T^{2} + 1)^{2} \) Copy content Toggle raw display
$41$ \( (T^{4} - 30 T^{2} + 100)^{2} \) Copy content Toggle raw display
$43$ \( (T^{4} + 82 T^{2} + 961)^{2} \) Copy content Toggle raw display
$47$ \( (T^{4} + 84 T^{2} + 1444)^{2} \) Copy content Toggle raw display
$53$ \( (T^{4} + 140 T^{2} + 400)^{2} \) Copy content Toggle raw display
$59$ \( (T^{4} - 30 T^{2} + 100)^{2} \) Copy content Toggle raw display
$61$ \( (T^{4} - 270 T^{2} + 12100)^{2} \) Copy content Toggle raw display
$67$ \( (T^{4} + 210 T^{2} + 3025)^{2} \) Copy content Toggle raw display
$71$ \( (T^{2} - 20 T + 55)^{4} \) Copy content Toggle raw display
$73$ \( (T^{4} + 270 T^{2} + 12100)^{2} \) Copy content Toggle raw display
$79$ \( (T^{2} - 14 T + 29)^{4} \) Copy content Toggle raw display
$83$ \( (T^{4} + 230 T^{2} + 12100)^{2} \) Copy content Toggle raw display
$89$ \( (T^{4} - 270 T^{2} + 8100)^{2} \) Copy content Toggle raw display
$97$ \( (T^{4} + 414 T^{2} + 39204)^{2} \) Copy content Toggle raw display
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