Properties

Label 2736.2.bm.p
Level $2736$
Weight $2$
Character orbit 2736.bm
Analytic conductor $21.847$
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] = [2736,2,Mod(559,2736)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2736, base_ring=CyclotomicField(6))
 
chi = DirichletCharacter(H, H._module([3, 0, 0, 1]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("2736.559");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 2736 = 2^{4} \cdot 3^{2} \cdot 19 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 2736.bm (of order \(6\), degree \(2\), 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: \(21.8470699930\)
Analytic rank: \(0\)
Dimension: \(8\)
Relative dimension: \(4\) over \(\Q(\zeta_{6})\)
Coefficient field: 8.0.897122304.10
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{8} - 8x^{6} + 51x^{4} - 104x^{2} + 169 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{13}]\)
Coefficient ring index: \( 2^{2} \)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{6}]$

$q$-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.

\(f(q)\) \(=\) \( q + ( - \beta_{7} - \beta_{6} + \cdots + \beta_{2}) q^{5}+ \cdots + (\beta_{5} - \beta_1) q^{7}+O(q^{10}) \) Copy content Toggle raw display \( q + ( - \beta_{7} - \beta_{6} + \cdots + \beta_{2}) q^{5}+ \cdots - 6 \beta_{5} q^{97}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q+O(q^{10}) \) Copy content Toggle raw display \( 8 q - 12 q^{13} - 20 q^{25} - 48 q^{31} + 24 q^{43} + 48 q^{49} + 48 q^{55} + 12 q^{61} - 24 q^{67} - 20 q^{73} + 24 q^{79} - 8 q^{85}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{8} - 8x^{6} + 51x^{4} - 104x^{2} + 169 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( -2\nu^{6} + 68\nu^{4} - 323\nu^{2} + 1092 ) / 663 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( 6\nu^{7} + 17\nu^{5} + 85\nu^{3} + 923\nu ) / 663 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( -7\nu^{7} + 17\nu^{5} + 85\nu^{3} - 1040\nu ) / 663 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( 8\nu^{6} - 51\nu^{4} + 408\nu^{2} - 832 ) / 663 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( 15\nu^{6} - 68\nu^{4} + 323\nu^{2} + 208 ) / 663 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( -\nu^{7} + 8\nu^{5} - 38\nu^{3} + 13\nu ) / 39 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( -\nu^{7} + 8\nu^{5} - 38\nu^{3} + 91\nu ) / 39 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_{7} - \beta_{6} ) / 2 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( -2\beta_{5} + 4\beta_{4} + \beta _1 + 4 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( 2\beta_{7} - 3\beta_{6} + 5\beta_{3} + 3\beta_{2} ) / 2 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( -8\beta_{5} + 19\beta_{4} + 16\beta_1 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( -11\beta_{7} + 16\beta_{6} + 11\beta_{3} + 27\beta_{2} ) / 2 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( 51\beta_{5} + 51\beta _1 - 100 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( ( -151\beta_{7} + 151\beta_{6} - 102\beta_{3} + 102\beta_{2} ) / 2 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/2736\mathbb{Z}\right)^\times\).

\(n\) \(1009\) \(1217\) \(1711\) \(2053\)
\(\chi(n)\) \(1 + \beta_{4}\) \(1\) \(-1\) \(1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
559.1
1.30421 + 0.752986i
2.07341 + 1.19709i
−2.07341 1.19709i
−1.30421 0.752986i
1.30421 0.752986i
2.07341 1.19709i
−2.07341 + 1.19709i
−1.30421 + 0.752986i
0 0 0 −2.05719 + 3.56317i 0 1.00000i 0 0 0
559.2 0 0 0 −0.876327 + 1.51784i 0 1.00000i 0 0 0
559.3 0 0 0 0.876327 1.51784i 0 1.00000i 0 0 0
559.4 0 0 0 2.05719 3.56317i 0 1.00000i 0 0 0
1855.1 0 0 0 −2.05719 3.56317i 0 1.00000i 0 0 0
1855.2 0 0 0 −0.876327 1.51784i 0 1.00000i 0 0 0
1855.3 0 0 0 0.876327 + 1.51784i 0 1.00000i 0 0 0
1855.4 0 0 0 2.05719 + 3.56317i 0 1.00000i 0 0 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 559.4
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
3.b odd 2 1 inner
76.f even 6 1 inner
228.n odd 6 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 2736.2.bm.p 8
3.b odd 2 1 inner 2736.2.bm.p 8
4.b odd 2 1 2736.2.bm.q yes 8
12.b even 2 1 2736.2.bm.q yes 8
19.d odd 6 1 2736.2.bm.q yes 8
57.f even 6 1 2736.2.bm.q yes 8
76.f even 6 1 inner 2736.2.bm.p 8
228.n odd 6 1 inner 2736.2.bm.p 8
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
2736.2.bm.p 8 1.a even 1 1 trivial
2736.2.bm.p 8 3.b odd 2 1 inner
2736.2.bm.p 8 76.f even 6 1 inner
2736.2.bm.p 8 228.n odd 6 1 inner
2736.2.bm.q yes 8 4.b odd 2 1
2736.2.bm.q yes 8 12.b even 2 1
2736.2.bm.q yes 8 19.d odd 6 1
2736.2.bm.q yes 8 57.f even 6 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(2736, [\chi])\):

\( T_{5}^{8} + 20T_{5}^{6} + 348T_{5}^{4} + 1040T_{5}^{2} + 2704 \) Copy content Toggle raw display
\( T_{7}^{2} + 1 \) Copy content Toggle raw display
\( T_{11}^{4} + 20T_{11}^{2} + 52 \) Copy content Toggle raw display
\( T_{23}^{8} - 44T_{23}^{6} + 1884T_{23}^{4} - 2288T_{23}^{2} + 2704 \) Copy content Toggle raw display
\( T_{31}^{2} + 12T_{31} + 33 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{8} \) Copy content Toggle raw display
$3$ \( T^{8} \) Copy content Toggle raw display
$5$ \( T^{8} + 20 T^{6} + \cdots + 2704 \) Copy content Toggle raw display
$7$ \( (T^{2} + 1)^{4} \) Copy content Toggle raw display
$11$ \( (T^{4} + 20 T^{2} + 52)^{2} \) Copy content Toggle raw display
$13$ \( (T^{2} + 3 T + 3)^{4} \) Copy content Toggle raw display
$17$ \( T^{8} + 32 T^{6} + \cdots + 43264 \) Copy content Toggle raw display
$19$ \( (T^{4} + 26 T^{2} + 361)^{2} \) Copy content Toggle raw display
$23$ \( T^{8} - 44 T^{6} + \cdots + 2704 \) Copy content Toggle raw display
$29$ \( T^{8} - 96 T^{6} + \cdots + 3504384 \) Copy content Toggle raw display
$31$ \( (T^{2} + 12 T + 33)^{4} \) Copy content Toggle raw display
$37$ \( (T^{4} + 78 T^{2} + 1089)^{2} \) Copy content Toggle raw display
$41$ \( T^{8} \) Copy content Toggle raw display
$43$ \( (T^{4} - 12 T^{3} + 51 T^{2} + \cdots + 9)^{2} \) Copy content Toggle raw display
$47$ \( T^{8} - 128 T^{6} + \cdots + 11075584 \) Copy content Toggle raw display
$53$ \( T^{8} - 132 T^{6} + \cdots + 219024 \) Copy content Toggle raw display
$59$ \( T^{8} + 132 T^{6} + \cdots + 219024 \) Copy content Toggle raw display
$61$ \( (T^{4} - 6 T^{3} + \cdots + 1521)^{2} \) Copy content Toggle raw display
$67$ \( (T^{4} + 12 T^{3} + \cdots + 81)^{2} \) Copy content Toggle raw display
$71$ \( T^{8} + 288 T^{6} + \cdots + 283855104 \) Copy content Toggle raw display
$73$ \( (T^{4} + 10 T^{3} + \cdots + 6889)^{2} \) Copy content Toggle raw display
$79$ \( (T^{4} - 12 T^{3} + \cdots + 1521)^{2} \) Copy content Toggle raw display
$83$ \( (T^{4} + 128 T^{2} + 208)^{2} \) Copy content Toggle raw display
$89$ \( T^{8} - 180 T^{6} + \cdots + 17740944 \) Copy content Toggle raw display
$97$ \( (T^{4} - 36 T^{2} + 1296)^{2} \) Copy content Toggle raw display
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