Properties

Label 980.4.i.n
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 20)
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.

\(f(q)\) \(=\) \( q + ( - 4 \zeta_{6} + 4) q^{3} + 5 \zeta_{6} q^{5} + 11 \zeta_{6} q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + ( - 4 \zeta_{6} + 4) q^{3} + 5 \zeta_{6} q^{5} + 11 \zeta_{6} q^{9} + ( - 60 \zeta_{6} + 60) q^{11} - 86 q^{13} + 20 q^{15} + ( - 18 \zeta_{6} + 18) q^{17} + 44 \zeta_{6} q^{19} - 48 \zeta_{6} q^{23} + (25 \zeta_{6} - 25) q^{25} + 152 q^{27} - 186 q^{29} + ( - 176 \zeta_{6} + 176) q^{31} - 240 \zeta_{6} q^{33} - 254 \zeta_{6} q^{37} + (344 \zeta_{6} - 344) q^{39} - 186 q^{41} - 100 q^{43} + (55 \zeta_{6} - 55) q^{45} + 168 \zeta_{6} q^{47} - 72 \zeta_{6} q^{51} + ( - 498 \zeta_{6} + 498) q^{53} + 300 q^{55} + 176 q^{57} + (252 \zeta_{6} - 252) q^{59} - 58 \zeta_{6} q^{61} - 430 \zeta_{6} q^{65} + ( - 1036 \zeta_{6} + 1036) q^{67} - 192 q^{69} + 168 q^{71} + ( - 506 \zeta_{6} + 506) q^{73} + 100 \zeta_{6} q^{75} - 272 \zeta_{6} q^{79} + ( - 311 \zeta_{6} + 311) q^{81} - 948 q^{83} + 90 q^{85} + (744 \zeta_{6} - 744) q^{87} - 1014 \zeta_{6} q^{89} - 704 \zeta_{6} q^{93} + (220 \zeta_{6} - 220) q^{95} + 766 q^{97} + 660 q^{99} +O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2 q + 4 q^{3} + 5 q^{5} + 11 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 2 q + 4 q^{3} + 5 q^{5} + 11 q^{9} + 60 q^{11} - 172 q^{13} + 40 q^{15} + 18 q^{17} + 44 q^{19} - 48 q^{23} - 25 q^{25} + 304 q^{27} - 372 q^{29} + 176 q^{31} - 240 q^{33} - 254 q^{37} - 344 q^{39} - 372 q^{41} - 200 q^{43} - 55 q^{45} + 168 q^{47} - 72 q^{51} + 498 q^{53} + 600 q^{55} + 352 q^{57} - 252 q^{59} - 58 q^{61} - 430 q^{65} + 1036 q^{67} - 384 q^{69} + 336 q^{71} + 506 q^{73} + 100 q^{75} - 272 q^{79} + 311 q^{81} - 1896 q^{83} + 180 q^{85} - 744 q^{87} - 1014 q^{89} - 704 q^{93} - 220 q^{95} + 1532 q^{97} + 1320 q^{99}+O(q^{100}) \) 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 2.00000 3.46410i 0 2.50000 + 4.33013i 0 0 0 5.50000 + 9.52628i 0
961.1 0 2.00000 + 3.46410i 0 2.50000 4.33013i 0 0 0 5.50000 9.52628i 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.n 2
7.b odd 2 1 980.4.i.e 2
7.c even 3 1 980.4.a.c 1
7.c even 3 1 inner 980.4.i.n 2
7.d odd 6 1 20.4.a.a 1
7.d odd 6 1 980.4.i.e 2
21.g even 6 1 180.4.a.a 1
28.f even 6 1 80.4.a.c 1
35.i odd 6 1 100.4.a.a 1
35.k even 12 2 100.4.c.a 2
56.j odd 6 1 320.4.a.d 1
56.m even 6 1 320.4.a.k 1
63.i even 6 1 1620.4.i.j 2
63.k odd 6 1 1620.4.i.d 2
63.s even 6 1 1620.4.i.j 2
63.t odd 6 1 1620.4.i.d 2
77.i even 6 1 2420.4.a.d 1
84.j odd 6 1 720.4.a.k 1
105.p even 6 1 900.4.a.m 1
105.w odd 12 2 900.4.d.k 2
112.v even 12 2 1280.4.d.c 2
112.x odd 12 2 1280.4.d.n 2
140.s even 6 1 400.4.a.o 1
140.x odd 12 2 400.4.c.j 2
280.ba even 6 1 1600.4.a.p 1
280.bk odd 6 1 1600.4.a.bl 1
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
20.4.a.a 1 7.d odd 6 1
80.4.a.c 1 28.f even 6 1
100.4.a.a 1 35.i odd 6 1
100.4.c.a 2 35.k even 12 2
180.4.a.a 1 21.g even 6 1
320.4.a.d 1 56.j odd 6 1
320.4.a.k 1 56.m even 6 1
400.4.a.o 1 140.s even 6 1
400.4.c.j 2 140.x odd 12 2
720.4.a.k 1 84.j odd 6 1
900.4.a.m 1 105.p even 6 1
900.4.d.k 2 105.w odd 12 2
980.4.a.c 1 7.c even 3 1
980.4.i.e 2 7.b odd 2 1
980.4.i.e 2 7.d odd 6 1
980.4.i.n 2 1.a even 1 1 trivial
980.4.i.n 2 7.c even 3 1 inner
1280.4.d.c 2 112.v even 12 2
1280.4.d.n 2 112.x odd 12 2
1600.4.a.p 1 280.ba even 6 1
1600.4.a.bl 1 280.bk odd 6 1
1620.4.i.d 2 63.k odd 6 1
1620.4.i.d 2 63.t odd 6 1
1620.4.i.j 2 63.i even 6 1
1620.4.i.j 2 63.s even 6 1
2420.4.a.d 1 77.i even 6 1

Hecke kernels

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

\( T_{3}^{2} - 4T_{3} + 16 \) Copy content Toggle raw display
\( T_{11}^{2} - 60T_{11} + 3600 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{2} \) Copy content Toggle raw display
$3$ \( T^{2} - 4T + 16 \) Copy content Toggle raw display
$5$ \( T^{2} - 5T + 25 \) Copy content Toggle raw display
$7$ \( T^{2} \) Copy content Toggle raw display
$11$ \( T^{2} - 60T + 3600 \) Copy content Toggle raw display
$13$ \( (T + 86)^{2} \) Copy content Toggle raw display
$17$ \( T^{2} - 18T + 324 \) Copy content Toggle raw display
$19$ \( T^{2} - 44T + 1936 \) Copy content Toggle raw display
$23$ \( T^{2} + 48T + 2304 \) Copy content Toggle raw display
$29$ \( (T + 186)^{2} \) 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
$41$ \( (T + 186)^{2} \) Copy content Toggle raw display
$43$ \( (T + 100)^{2} \) Copy content Toggle raw display
$47$ \( T^{2} - 168T + 28224 \) Copy content Toggle raw display
$53$ \( T^{2} - 498T + 248004 \) Copy content Toggle raw display
$59$ \( T^{2} + 252T + 63504 \) Copy content Toggle raw display
$61$ \( T^{2} + 58T + 3364 \) Copy content Toggle raw display
$67$ \( T^{2} - 1036 T + 1073296 \) Copy content Toggle raw display
$71$ \( (T - 168)^{2} \) Copy content Toggle raw display
$73$ \( T^{2} - 506T + 256036 \) Copy content Toggle raw display
$79$ \( T^{2} + 272T + 73984 \) Copy content Toggle raw display
$83$ \( (T + 948)^{2} \) Copy content Toggle raw display
$89$ \( T^{2} + 1014 T + 1028196 \) Copy content Toggle raw display
$97$ \( (T - 766)^{2} \) Copy content Toggle raw display
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