Properties

Label 980.4.i.a
Level $980$
Weight $4$
Character orbit 980.i
Analytic conductor $57.822$
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] = [980,4,Mod(361,980)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(980, base_ring=CyclotomicField(6))
 
chi = DirichletCharacter(H, H._module([0, 0, 4]))
 
N = Newforms(chi, 4, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("980.361");
 
S:= CuspForms(chi, 4);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 980 = 2^{2} \cdot 5 \cdot 7^{2} \)
Weight: \( k \) \(=\) \( 4 \)
Character orbit: \([\chi]\) \(=\) 980.i (of order \(3\), degree \(2\), 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: \(57.8218718056\)
Analytic rank: \(0\)
Dimension: \(2\)
Coefficient field: \(\Q(\sqrt{-3}) \)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{2} - x + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{5}]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 140)
Sato-Tate group: $\mathrm{SU}(2)[C_{3}]$

$q$-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 primitive root of unity \(\zeta_{6}\). We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + (9 \zeta_{6} - 9) q^{3} - 5 \zeta_{6} q^{5} - 54 \zeta_{6} q^{9} +O(q^{10}) \) Copy content Toggle raw display \( q + (9 \zeta_{6} - 9) q^{3} - 5 \zeta_{6} q^{5} - 54 \zeta_{6} q^{9} + (55 \zeta_{6} - 55) q^{11} - 69 q^{13} + 45 q^{15} + (113 \zeta_{6} - 113) q^{17} + 126 \zeta_{6} q^{19} + 102 \zeta_{6} q^{23} + (25 \zeta_{6} - 25) q^{25} + 243 q^{27} - 81 q^{29} + (176 \zeta_{6} - 176) q^{31} - 495 \zeta_{6} q^{33} - 254 \zeta_{6} q^{37} + ( - 621 \zeta_{6} + 621) q^{39} - 184 q^{41} - 230 q^{43} + (270 \zeta_{6} - 270) q^{45} + 187 \zeta_{6} q^{47} - 1017 \zeta_{6} q^{51} + ( - 488 \zeta_{6} + 488) q^{53} + 275 q^{55} - 1134 q^{57} + (388 \zeta_{6} - 388) q^{59} + 728 \zeta_{6} q^{61} + 345 \zeta_{6} q^{65} + ( - 96 \zeta_{6} + 96) q^{67} - 918 q^{69} + 8 q^{71} + ( - 994 \zeta_{6} + 994) q^{73} - 225 \zeta_{6} q^{75} - 337 \zeta_{6} q^{79} + (729 \zeta_{6} - 729) q^{81} + 188 q^{83} + 565 q^{85} + ( - 729 \zeta_{6} + 729) q^{87} + 884 \zeta_{6} q^{89} - 1584 \zeta_{6} q^{93} + ( - 630 \zeta_{6} + 630) q^{95} - 451 q^{97} + 2970 q^{99} +O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2 q - 9 q^{3} - 5 q^{5} - 54 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 2 q - 9 q^{3} - 5 q^{5} - 54 q^{9} - 55 q^{11} - 138 q^{13} + 90 q^{15} - 113 q^{17} + 126 q^{19} + 102 q^{23} - 25 q^{25} + 486 q^{27} - 162 q^{29} - 176 q^{31} - 495 q^{33} - 254 q^{37} + 621 q^{39} - 368 q^{41} - 460 q^{43} - 270 q^{45} + 187 q^{47} - 1017 q^{51} + 488 q^{53} + 550 q^{55} - 2268 q^{57} - 388 q^{59} + 728 q^{61} + 345 q^{65} + 96 q^{67} - 1836 q^{69} + 16 q^{71} + 994 q^{73} - 225 q^{75} - 337 q^{79} - 729 q^{81} + 376 q^{83} + 1130 q^{85} + 729 q^{87} + 884 q^{89} - 1584 q^{93} + 630 q^{95} - 902 q^{97} + 5940 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/980\mathbb{Z}\right)^\times\).

\(n\) \(101\) \(197\) \(491\)
\(\chi(n)\) \(-\zeta_{6}\) \(1\) \(1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
361.1
0.500000 + 0.866025i
0.500000 0.866025i
0 −4.50000 + 7.79423i 0 −2.50000 4.33013i 0 0 0 −27.0000 46.7654i 0
961.1 0 −4.50000 7.79423i 0 −2.50000 + 4.33013i 0 0 0 −27.0000 + 46.7654i 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
7.c even 3 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 980.4.i.a 2
7.b odd 2 1 980.4.i.r 2
7.c even 3 1 140.4.a.f 1
7.c even 3 1 inner 980.4.i.a 2
7.d odd 6 1 980.4.a.a 1
7.d odd 6 1 980.4.i.r 2
21.h odd 6 1 1260.4.a.b 1
28.g odd 6 1 560.4.a.a 1
35.j even 6 1 700.4.a.a 1
35.l odd 12 2 700.4.e.b 2
56.k odd 6 1 2240.4.a.bl 1
56.p even 6 1 2240.4.a.a 1
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
140.4.a.f 1 7.c even 3 1
560.4.a.a 1 28.g odd 6 1
700.4.a.a 1 35.j even 6 1
700.4.e.b 2 35.l odd 12 2
980.4.a.a 1 7.d odd 6 1
980.4.i.a 2 1.a even 1 1 trivial
980.4.i.a 2 7.c even 3 1 inner
980.4.i.r 2 7.b odd 2 1
980.4.i.r 2 7.d odd 6 1
1260.4.a.b 1 21.h odd 6 1
2240.4.a.a 1 56.p even 6 1
2240.4.a.bl 1 56.k odd 6 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{4}^{\mathrm{new}}(980, [\chi])\):

\( T_{3}^{2} + 9T_{3} + 81 \) Copy content Toggle raw display
\( T_{11}^{2} + 55T_{11} + 3025 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{2} \) Copy content Toggle raw display
$3$ \( T^{2} + 9T + 81 \) Copy content Toggle raw display
$5$ \( T^{2} + 5T + 25 \) Copy content Toggle raw display
$7$ \( T^{2} \) Copy content Toggle raw display
$11$ \( T^{2} + 55T + 3025 \) Copy content Toggle raw display
$13$ \( (T + 69)^{2} \) Copy content Toggle raw display
$17$ \( T^{2} + 113T + 12769 \) Copy content Toggle raw display
$19$ \( T^{2} - 126T + 15876 \) Copy content Toggle raw display
$23$ \( T^{2} - 102T + 10404 \) Copy content Toggle raw display
$29$ \( (T + 81)^{2} \) Copy content Toggle raw display
$31$ \( T^{2} + 176T + 30976 \) Copy content Toggle raw display
$37$ \( T^{2} + 254T + 64516 \) Copy content Toggle raw display
$41$ \( (T + 184)^{2} \) Copy content Toggle raw display
$43$ \( (T + 230)^{2} \) Copy content Toggle raw display
$47$ \( T^{2} - 187T + 34969 \) Copy content Toggle raw display
$53$ \( T^{2} - 488T + 238144 \) Copy content Toggle raw display
$59$ \( T^{2} + 388T + 150544 \) Copy content Toggle raw display
$61$ \( T^{2} - 728T + 529984 \) Copy content Toggle raw display
$67$ \( T^{2} - 96T + 9216 \) Copy content Toggle raw display
$71$ \( (T - 8)^{2} \) Copy content Toggle raw display
$73$ \( T^{2} - 994T + 988036 \) Copy content Toggle raw display
$79$ \( T^{2} + 337T + 113569 \) Copy content Toggle raw display
$83$ \( (T - 188)^{2} \) Copy content Toggle raw display
$89$ \( T^{2} - 884T + 781456 \) Copy content Toggle raw display
$97$ \( (T + 451)^{2} \) Copy content Toggle raw display
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