Properties

Label 2496.2.j.c
Level $2496$
Weight $2$
Character orbit 2496.j
Analytic conductor $19.931$
Analytic rank $0$
Dimension $12$
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] = [2496,2,Mod(287,2496)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2496, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([1, 1, 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("2496.287");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 2496 = 2^{6} \cdot 3 \cdot 13 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 2496.j (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: \(19.9306603445\)
Analytic rank: \(0\)
Dimension: \(12\)
Coefficient field: 12.0.18918897714528256.1
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{12} + 3x^{10} + 5x^{8} + 4x^{6} + 20x^{4} + 48x^{2} + 64 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{13}]\)
Coefficient ring index: \( 2^{5} \)
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 \(1,\beta_1,\ldots,\beta_{11}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q - \beta_{2} q^{3} + \beta_{8} q^{5} + (2 \beta_{7} - \beta_{6} - \beta_{3}) q^{7} + (\beta_{9} - \beta_{4} + 1) q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q - \beta_{2} q^{3} + \beta_{8} q^{5} + (2 \beta_{7} - \beta_{6} - \beta_{3}) q^{7} + (\beta_{9} - \beta_{4} + 1) q^{9} + (\beta_{11} + \beta_{9} + \beta_{5} + \cdots + 1) q^{11}+ \cdots + ( - \beta_{11} + \beta_{9} - 5 \beta_{5} + \cdots - 7) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 12 q - 4 q^{3} + 8 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 12 q - 4 q^{3} + 8 q^{9} + 4 q^{25} - 4 q^{27} + 16 q^{33} - 20 q^{49} - 8 q^{51} + 16 q^{67} + 8 q^{73} - 12 q^{75} - 16 q^{91} + 40 q^{97} - 72 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{12} + 3x^{10} + 5x^{8} + 4x^{6} + 20x^{4} + 48x^{2} + 64 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( 2\nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( \nu^{10} + \nu^{8} - 5\nu^{6} + 6\nu^{4} + 16\nu^{2} + 32 ) / 32 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( \nu^{11} + 5\nu^{9} - \nu^{7} + 18\nu^{5} + 40\nu^{3} + 64\nu ) / 64 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( -\nu^{10} - 5\nu^{8} + \nu^{6} + 14\nu^{4} - 8\nu^{2} - 64 ) / 32 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( -3\nu^{10} - 3\nu^{8} - \nu^{6} - 2\nu^{4} - 64\nu^{2} - 64 ) / 32 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( -\nu^{11} - 9\nu^{9} - 3\nu^{7} + 2\nu^{5} - 128\nu ) / 64 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( -3\nu^{11} - 3\nu^{9} - \nu^{7} - 2\nu^{5} - 32\nu^{3} - 32\nu ) / 64 \) Copy content Toggle raw display
\(\beta_{8}\)\(=\) \( ( -\nu^{11} - 3\nu^{9} + 3\nu^{7} + 4\nu^{5} - 28\nu^{3} - 64\nu ) / 32 \) Copy content Toggle raw display
\(\beta_{9}\)\(=\) \( ( -5\nu^{10} - 5\nu^{8} - 7\nu^{6} + 2\nu^{4} - 48\nu^{2} - 64 ) / 32 \) Copy content Toggle raw display
\(\beta_{10}\)\(=\) \( ( \nu^{11} + 3\nu^{9} + 5\nu^{7} + 4\nu^{5} + 20\nu^{3} + 48\nu ) / 16 \) Copy content Toggle raw display
\(\beta_{11}\)\(=\) \( ( 3\nu^{10} + 7\nu^{8} + 5\nu^{6} + 14\nu^{4} + 56\nu^{2} + 96 ) / 16 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_1 ) / 2 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( \beta_{9} - 2\beta_{5} - \beta_{2} - 1 ) / 2 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( \beta_{10} - 2\beta_{8} + 2\beta_{7} + 2\beta_{6} - \beta_1 ) / 2 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( ( \beta_{11} + 2\beta_{5} + 2\beta_{4} + 2\beta_{2} ) / 2 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( -\beta_{10} + 4\beta_{8} - 2\beta_{7} + 6\beta_{3} + 2\beta_1 ) / 2 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( ( \beta_{11} - \beta_{9} + 2\beta_{4} - 9\beta_{2} + 5 ) / 2 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( ( 6\beta_{10} + 2\beta_{8} + 4\beta_{7} + 2\beta_{6} - 6\beta_{3} - \beta_1 ) / 2 \) Copy content Toggle raw display
\(\nu^{8}\)\(=\) \( ( 4\beta_{11} + 3\beta_{9} + 6\beta_{5} - 8\beta_{4} + \beta_{2} - 23 ) / 2 \) Copy content Toggle raw display
\(\nu^{9}\)\(=\) \( ( -\beta_{10} - 2\beta_{8} + 6\beta_{7} - 14\beta_{6} + 4\beta_{3} - 15\beta_1 ) / 2 \) Copy content Toggle raw display
\(\nu^{10}\)\(=\) \( ( -5\beta_{11} - 24\beta_{9} + 14\beta_{5} + 6\beta_{4} + 22\beta_{2} ) / 2 \) Copy content Toggle raw display
\(\nu^{11}\)\(=\) \( ( -11\beta_{10} + 20\beta_{8} - 70\beta_{7} - 8\beta_{6} - 6\beta_{3} + 14\beta_1 ) / 2 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/2496\mathbb{Z}\right)^\times\).

\(n\) \(703\) \(769\) \(833\) \(1093\)
\(\chi(n)\) \(-1\) \(1\) \(-1\) \(-1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
287.1
1.28568 0.589097i
−1.28568 + 0.589097i
1.28568 + 0.589097i
−1.28568 0.589097i
0.427044 1.34820i
−0.427044 + 1.34820i
0.427044 + 1.34820i
−0.427044 1.34820i
−0.643948 + 1.25910i
0.643948 1.25910i
−0.643948 1.25910i
0.643948 + 1.25910i
0 −1.71683 0.229100i 0 −3.12891 0 1.43366i 0 2.89503 + 0.786653i 0
287.2 0 −1.71683 0.229100i 0 3.12891 0 1.43366i 0 2.89503 + 0.786653i 0
287.3 0 −1.71683 + 0.229100i 0 −3.12891 0 1.43366i 0 2.89503 0.786653i 0
287.4 0 −1.71683 + 0.229100i 0 3.12891 0 1.43366i 0 2.89503 0.786653i 0
287.5 0 −0.712929 1.57852i 0 −0.181860 0 0.574141i 0 −1.98346 + 2.25075i 0
287.6 0 −0.712929 1.57852i 0 0.181860 0 0.574141i 0 −1.98346 + 2.25075i 0
287.7 0 −0.712929 + 1.57852i 0 −0.181860 0 0.574141i 0 −1.98346 2.25075i 0
287.8 0 −0.712929 + 1.57852i 0 0.181860 0 0.574141i 0 −1.98346 2.25075i 0
287.9 0 1.42976 0.977641i 0 −2.48533 0 4.85952i 0 1.08844 2.79559i 0
287.10 0 1.42976 0.977641i 0 2.48533 0 4.85952i 0 1.08844 2.79559i 0
287.11 0 1.42976 + 0.977641i 0 −2.48533 0 4.85952i 0 1.08844 + 2.79559i 0
287.12 0 1.42976 + 0.977641i 0 2.48533 0 4.85952i 0 1.08844 + 2.79559i 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 287.12
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
3.b odd 2 1 inner
8.d odd 2 1 inner
24.f even 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 2496.2.j.c 12
3.b odd 2 1 inner 2496.2.j.c 12
4.b odd 2 1 2496.2.j.d yes 12
8.b even 2 1 2496.2.j.d yes 12
8.d odd 2 1 inner 2496.2.j.c 12
12.b even 2 1 2496.2.j.d yes 12
24.f even 2 1 inner 2496.2.j.c 12
24.h odd 2 1 2496.2.j.d yes 12
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
2496.2.j.c 12 1.a even 1 1 trivial
2496.2.j.c 12 3.b odd 2 1 inner
2496.2.j.c 12 8.d odd 2 1 inner
2496.2.j.c 12 24.f even 2 1 inner
2496.2.j.d yes 12 4.b odd 2 1
2496.2.j.d yes 12 8.b even 2 1
2496.2.j.d yes 12 12.b even 2 1
2496.2.j.d yes 12 24.h odd 2 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(2496, [\chi])\):

\( T_{5}^{6} - 16T_{5}^{4} + 61T_{5}^{2} - 2 \) Copy content Toggle raw display
\( T_{19} \) Copy content Toggle raw display
\( T_{43}^{3} - 97T_{43} - 364 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{12} \) Copy content Toggle raw display
$3$ \( (T^{6} + 2 T^{5} - 2 T^{3} + \cdots + 27)^{2} \) Copy content Toggle raw display
$5$ \( (T^{6} - 16 T^{4} + 61 T^{2} - 2)^{2} \) Copy content Toggle raw display
$7$ \( (T^{6} + 26 T^{4} + \cdots + 16)^{2} \) Copy content Toggle raw display
$11$ \( (T^{6} + 34 T^{4} + \cdots + 512)^{2} \) Copy content Toggle raw display
$13$ \( (T^{2} + 1)^{6} \) Copy content Toggle raw display
$17$ \( (T^{6} + 54 T^{4} + \cdots + 1568)^{2} \) Copy content Toggle raw display
$19$ \( T^{12} \) Copy content Toggle raw display
$23$ \( (T^{6} - 152 T^{4} + \cdots - 100352)^{2} \) Copy content Toggle raw display
$29$ \( (T^{6} - 88 T^{4} + \cdots - 2048)^{2} \) Copy content Toggle raw display
$31$ \( (T^{2} + 16)^{6} \) Copy content Toggle raw display
$37$ \( (T^{6} + 238 T^{4} + \cdots + 240100)^{2} \) Copy content Toggle raw display
$41$ \( (T^{6} + 186 T^{4} + \cdots + 189728)^{2} \) Copy content Toggle raw display
$43$ \( (T^{3} - 97 T - 364)^{4} \) Copy content Toggle raw display
$47$ \( (T^{6} - 64 T^{4} + \cdots - 98)^{2} \) Copy content Toggle raw display
$53$ \( (T^{6} - 144 T^{4} + \cdots - 32768)^{2} \) Copy content Toggle raw display
$59$ \( (T^{6} + 58 T^{4} + \cdots + 800)^{2} \) Copy content Toggle raw display
$61$ \( (T^{6} + 236 T^{4} + \cdots + 78400)^{2} \) Copy content Toggle raw display
$67$ \( (T^{3} - 4 T^{2} + \cdots + 112)^{4} \) Copy content Toggle raw display
$71$ \( (T^{6} - 64 T^{4} + \cdots - 98)^{2} \) Copy content Toggle raw display
$73$ \( (T^{3} - 2 T^{2} + \cdots - 280)^{4} \) Copy content Toggle raw display
$79$ \( (T^{6} + 168 T^{4} + \cdots + 16384)^{2} \) Copy content Toggle raw display
$83$ \( (T^{6} + 314 T^{4} + \cdots + 76832)^{2} \) Copy content Toggle raw display
$89$ \( (T^{6} + 274 T^{4} + \cdots + 627200)^{2} \) Copy content Toggle raw display
$97$ \( (T^{3} - 10 T^{2} + \cdots + 160)^{4} \) Copy content Toggle raw display
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