Properties

Label 960.3.j.c
Level $960$
Weight $3$
Character orbit 960.j
Analytic conductor $26.158$
Analytic rank $0$
Dimension $4$
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] = [960,3,Mod(319,960)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(960, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([1, 0, 0, 1]))
 
N = Newforms(chi, 3, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("960.319");
 
S:= CuspForms(chi, 3);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 960 = 2^{6} \cdot 3 \cdot 5 \)
Weight: \( k \) \(=\) \( 3 \)
Character orbit: \([\chi]\) \(=\) 960.j (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: \(26.1581053786\)
Analytic rank: \(0\)
Dimension: \(4\)
Coefficient field: \(\Q(\sqrt{3}, \sqrt{-7})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{4} - 2x^{3} - x^{2} + 2x + 22 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{5}]\)
Coefficient ring index: \( 2^{2}\cdot 3 \)
Twist minimal: no (minimal twist has level 240)
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.

\(f(q)\) \(=\) \( q + \beta_1 q^{3} + ( - \beta_{2} + 2) q^{5} - 2 \beta_1 q^{7} + 3 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + \beta_1 q^{3} + ( - \beta_{2} + 2) q^{5} - 2 \beta_1 q^{7} + 3 q^{9} - 2 \beta_{3} q^{11} + 2 \beta_{2} q^{13} + (\beta_{3} + 2 \beta_1) q^{15} + 2 \beta_{2} q^{17} - 4 \beta_{3} q^{19} - 6 q^{21} - 16 \beta_1 q^{23} + ( - 4 \beta_{2} - 17) q^{25} + 3 \beta_1 q^{27} + 8 q^{29} + 6 \beta_{2} q^{33} + ( - 2 \beta_{3} - 4 \beta_1) q^{35} + 10 \beta_{2} q^{37} - 2 \beta_{3} q^{39} + 50 q^{41} + 36 \beta_1 q^{43} + ( - 3 \beta_{2} + 6) q^{45} + 28 \beta_1 q^{47} - 37 q^{49} - 2 \beta_{3} q^{51} - 6 \beta_{2} q^{53} + ( - 4 \beta_{3} + 42 \beta_1) q^{55} + 12 \beta_{2} q^{57} + 2 \beta_{3} q^{59} + 26 q^{61} - 6 \beta_1 q^{63} + (4 \beta_{2} + 42) q^{65} - 32 \beta_1 q^{67} - 48 q^{69} - 12 \beta_{3} q^{71} - 28 \beta_{2} q^{73} + (4 \beta_{3} - 17 \beta_1) q^{75} - 12 \beta_{2} q^{77} - 16 \beta_{3} q^{79} + 9 q^{81} + 76 \beta_1 q^{83} + (4 \beta_{2} + 42) q^{85} + 8 \beta_1 q^{87} - 86 q^{89} + 4 \beta_{3} q^{91} + ( - 8 \beta_{3} + 84 \beta_1) q^{95} - 24 \beta_{2} q^{97} - 6 \beta_{3} q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 4 q + 8 q^{5} + 12 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 4 q + 8 q^{5} + 12 q^{9} - 24 q^{21} - 68 q^{25} + 32 q^{29} + 200 q^{41} + 24 q^{45} - 148 q^{49} + 104 q^{61} + 168 q^{65} - 192 q^{69} + 36 q^{81} + 168 q^{85} - 344 q^{89}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{4} - 2x^{3} - x^{2} + 2x + 22 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( -2\nu^{3} + 3\nu^{2} + 13\nu - 7 ) / 19 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( -\nu^{2} + \nu + 1 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( 12\nu^{3} - 18\nu^{2} + 36\nu - 15 ) / 19 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_{3} + 6\beta _1 + 3 ) / 6 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( \beta_{3} - 6\beta_{2} + 6\beta _1 + 9 ) / 6 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( 8\beta_{3} - 9\beta_{2} - 9\beta _1 + 12 ) / 6 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/960\mathbb{Z}\right)^\times\).

\(n\) \(511\) \(577\) \(641\) \(901\)
\(\chi(n)\) \(-1\) \(-1\) \(1\) \(1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
319.1
−1.23205 + 1.32288i
−1.23205 1.32288i
2.23205 1.32288i
2.23205 + 1.32288i
0 −1.73205 0 2.00000 4.58258i 0 3.46410 0 3.00000 0
319.2 0 −1.73205 0 2.00000 + 4.58258i 0 3.46410 0 3.00000 0
319.3 0 1.73205 0 2.00000 4.58258i 0 −3.46410 0 3.00000 0
319.4 0 1.73205 0 2.00000 + 4.58258i 0 −3.46410 0 3.00000 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
4.b odd 2 1 inner
5.b even 2 1 inner
20.d odd 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 960.3.j.c 4
4.b odd 2 1 inner 960.3.j.c 4
5.b even 2 1 inner 960.3.j.c 4
8.b even 2 1 240.3.j.b 4
8.d odd 2 1 240.3.j.b 4
20.d odd 2 1 inner 960.3.j.c 4
24.f even 2 1 720.3.j.f 4
24.h odd 2 1 720.3.j.f 4
40.e odd 2 1 240.3.j.b 4
40.f even 2 1 240.3.j.b 4
40.i odd 4 2 1200.3.e.l 4
40.k even 4 2 1200.3.e.l 4
120.i odd 2 1 720.3.j.f 4
120.m even 2 1 720.3.j.f 4
120.q odd 4 2 3600.3.e.be 4
120.w even 4 2 3600.3.e.be 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
240.3.j.b 4 8.b even 2 1
240.3.j.b 4 8.d odd 2 1
240.3.j.b 4 40.e odd 2 1
240.3.j.b 4 40.f even 2 1
720.3.j.f 4 24.f even 2 1
720.3.j.f 4 24.h odd 2 1
720.3.j.f 4 120.i odd 2 1
720.3.j.f 4 120.m even 2 1
960.3.j.c 4 1.a even 1 1 trivial
960.3.j.c 4 4.b odd 2 1 inner
960.3.j.c 4 5.b even 2 1 inner
960.3.j.c 4 20.d odd 2 1 inner
1200.3.e.l 4 40.i odd 4 2
1200.3.e.l 4 40.k even 4 2
3600.3.e.be 4 120.q odd 4 2
3600.3.e.be 4 120.w even 4 2

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{3}^{\mathrm{new}}(960, [\chi])\):

\( T_{7}^{2} - 12 \) Copy content Toggle raw display
\( T_{11}^{2} + 252 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{4} \) Copy content Toggle raw display
$3$ \( (T^{2} - 3)^{2} \) Copy content Toggle raw display
$5$ \( (T^{2} - 4 T + 25)^{2} \) Copy content Toggle raw display
$7$ \( (T^{2} - 12)^{2} \) Copy content Toggle raw display
$11$ \( (T^{2} + 252)^{2} \) Copy content Toggle raw display
$13$ \( (T^{2} + 84)^{2} \) Copy content Toggle raw display
$17$ \( (T^{2} + 84)^{2} \) Copy content Toggle raw display
$19$ \( (T^{2} + 1008)^{2} \) Copy content Toggle raw display
$23$ \( (T^{2} - 768)^{2} \) Copy content Toggle raw display
$29$ \( (T - 8)^{4} \) Copy content Toggle raw display
$31$ \( T^{4} \) Copy content Toggle raw display
$37$ \( (T^{2} + 2100)^{2} \) Copy content Toggle raw display
$41$ \( (T - 50)^{4} \) Copy content Toggle raw display
$43$ \( (T^{2} - 3888)^{2} \) Copy content Toggle raw display
$47$ \( (T^{2} - 2352)^{2} \) Copy content Toggle raw display
$53$ \( (T^{2} + 756)^{2} \) Copy content Toggle raw display
$59$ \( (T^{2} + 252)^{2} \) Copy content Toggle raw display
$61$ \( (T - 26)^{4} \) Copy content Toggle raw display
$67$ \( (T^{2} - 3072)^{2} \) Copy content Toggle raw display
$71$ \( (T^{2} + 9072)^{2} \) Copy content Toggle raw display
$73$ \( (T^{2} + 16464)^{2} \) Copy content Toggle raw display
$79$ \( (T^{2} + 16128)^{2} \) Copy content Toggle raw display
$83$ \( (T^{2} - 17328)^{2} \) Copy content Toggle raw display
$89$ \( (T + 86)^{4} \) Copy content Toggle raw display
$97$ \( (T^{2} + 12096)^{2} \) Copy content Toggle raw display
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