Properties

Label 1776.2.q.p
Level $1776$
Weight $2$
Character orbit 1776.q
Analytic conductor $14.181$
Analytic rank $0$
Dimension $8$
Inner twists $2$

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Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [1776,2,Mod(433,1776)] mf = mfinit([N,k,chi],0) lf = mfeigenbasis(mf)
 
Copy content magma://Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code chi := DirichletCharacter("1776.433"); S:= CuspForms(chi, 2); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(1776, base_ring=CyclotomicField(6)) chi = DirichletCharacter(H, H._module([0, 0, 0, 2])) N = Newforms(chi, 2, names="a")
 
Level: \( N \) \(=\) \( 1776 = 2^{4} \cdot 3 \cdot 37 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 1776.q (of order \(3\), degree \(2\), not minimal)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [8,0,4,0,1,0,-4,0,-4,0,-6] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(11)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: no
Analytic conductor: \(14.1814313990\)
Analytic rank: \(0\)
Dimension: \(8\)
Relative dimension: \(4\) over \(\Q(\zeta_{3})\)
Coefficient field: 8.0.1445900625.1
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{8} + 9x^{6} + 77x^{4} + 36x^{2} + 16 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{7}]\)
Coefficient ring index: \( 2^{2} \)
Twist minimal: no (minimal twist has level 888)
Sato-Tate group: $\mathrm{SU}(2)[C_{3}]$

$q$-expansion

Copy content comment:q-expansion
 
Copy content sage:f.q_expansion() # note that sage often uses an isomorphic number field
 
Copy content 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.

\(f(q)\) \(=\) \( q + ( - \beta_{3} + 1) q^{3} + ( - \beta_{6} + \beta_{5} - \beta_{4}) q^{5} + ( - \beta_{7} + \beta_{3} - 1) q^{7} - \beta_{3} q^{9} + (\beta_{6} - \beta_{4} - 1) q^{11} + (\beta_{7} - \beta_{5} + \beta_{4} + \cdots - 2) q^{13}+ \cdots + (\beta_{5} + \beta_{3} - 2 \beta_1) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q + 4 q^{3} + q^{5} - 4 q^{7} - 4 q^{9} - 6 q^{11} - 9 q^{13} - q^{15} - 4 q^{17} - 3 q^{19} + 4 q^{21} + 10 q^{23} - q^{25} - 8 q^{27} - 16 q^{29} - 8 q^{31} - 3 q^{33} - 3 q^{35} + 9 q^{39} + 11 q^{41}+ \cdots + 3 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{8} + 9x^{6} + 77x^{4} + 36x^{2} + 16 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( \nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( -\nu^{7} + 657\nu ) / 154 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( 9\nu^{6} + 77\nu^{4} + 693\nu^{2} + 324 ) / 308 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( 9\nu^{7} - 4\nu^{6} + 77\nu^{5} + 693\nu^{3} + 16\nu + 1088 ) / 616 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( 8\nu^{6} + 77\nu^{4} + 616\nu^{2} + 77\nu + 288 ) / 154 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( -9\nu^{7} - 77\nu^{5} - 693\nu^{3} - 16\nu ) / 308 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( -\nu^{7} - 9\nu^{5} - 77\nu^{3} - 36\nu ) / 8 \) Copy content Toggle raw display
\(\nu\)\(=\) \( \beta_1 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( \beta_{6} - 2\beta_{5} + 2\beta_{4} + 4\beta_{3} + \beta _1 - 4 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( 2\beta_{7} - 9\beta_{6} + 2\beta_{2} \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( 18\beta_{5} - 32\beta_{3} - 9\beta_1 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( -18\beta_{7} + 77\beta_{6} - 77\beta_1 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( -77\beta_{6} - 154\beta_{4} + 272 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( -154\beta_{2} + 657\beta_1 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/1776\mathbb{Z}\right)^\times\).

\(n\) \(223\) \(593\) \(1297\) \(1333\)
\(\chi(n)\) \(1\) \(1\) \(-1 + \beta_{3}\) \(1\)

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.

Copy content comment:embeddings in the coefficient field
 
Copy content gp:mfembed(f)
 
Label   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
433.1
0.342371 + 0.593004i
−0.342371 0.593004i
1.46040 + 2.52950i
−1.46040 2.52950i
0.342371 0.593004i
−0.342371 + 0.593004i
1.46040 2.52950i
−1.46040 + 2.52950i
0 0.500000 0.866025i 0 −1.05397 + 1.82553i 0 −1.96040 + 3.39552i 0 −0.500000 0.866025i 0
433.2 0 0.500000 0.866025i 0 −0.711597 + 1.23252i 0 0.960405 1.66347i 0 −0.500000 0.866025i 0
433.3 0 0.500000 0.866025i 0 0.402580 0.697289i 0 −0.842371 + 1.45903i 0 −0.500000 0.866025i 0
433.4 0 0.500000 0.866025i 0 1.86298 3.22678i 0 −0.157629 + 0.273022i 0 −0.500000 0.866025i 0
1009.1 0 0.500000 + 0.866025i 0 −1.05397 1.82553i 0 −1.96040 3.39552i 0 −0.500000 + 0.866025i 0
1009.2 0 0.500000 + 0.866025i 0 −0.711597 1.23252i 0 0.960405 + 1.66347i 0 −0.500000 + 0.866025i 0
1009.3 0 0.500000 + 0.866025i 0 0.402580 + 0.697289i 0 −0.842371 1.45903i 0 −0.500000 + 0.866025i 0
1009.4 0 0.500000 + 0.866025i 0 1.86298 + 3.22678i 0 −0.157629 0.273022i 0 −0.500000 + 0.866025i 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 433.4
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
37.c even 3 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 1776.2.q.p 8
4.b odd 2 1 888.2.q.i 8
12.b even 2 1 2664.2.r.m 8
37.c even 3 1 inner 1776.2.q.p 8
148.i odd 6 1 888.2.q.i 8
444.t even 6 1 2664.2.r.m 8
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
888.2.q.i 8 4.b odd 2 1
888.2.q.i 8 148.i odd 6 1
1776.2.q.p 8 1.a even 1 1 trivial
1776.2.q.p 8 37.c even 3 1 inner
2664.2.r.m 8 12.b even 2 1
2664.2.r.m 8 444.t even 6 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(1776, [\chi])\):

\( T_{5}^{8} - T_{5}^{7} + 11T_{5}^{6} + 16T_{5}^{5} + 88T_{5}^{4} + 48T_{5}^{3} + 99T_{5}^{2} - 27T_{5} + 81 \) Copy content Toggle raw display
\( T_{11}^{4} + 3T_{11}^{3} - 25T_{11}^{2} - 114T_{11} - 116 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{8} \) Copy content Toggle raw display
$3$ \( (T^{2} - T + 1)^{4} \) Copy content Toggle raw display
$5$ \( T^{8} - T^{7} + \cdots + 81 \) Copy content Toggle raw display
$7$ \( T^{8} + 4 T^{7} + \cdots + 16 \) Copy content Toggle raw display
$11$ \( (T^{4} + 3 T^{3} + \cdots - 116)^{2} \) Copy content Toggle raw display
$13$ \( T^{8} + 9 T^{7} + \cdots + 13456 \) Copy content Toggle raw display
$17$ \( (T^{4} + 2 T^{3} + \cdots + 361)^{2} \) Copy content Toggle raw display
$19$ \( T^{8} + 3 T^{7} + \cdots + 13456 \) Copy content Toggle raw display
$23$ \( (T^{4} - 5 T^{3} + \cdots + 464)^{2} \) Copy content Toggle raw display
$29$ \( (T^{2} + 4 T - 9)^{4} \) Copy content Toggle raw display
$31$ \( (T^{4} + 4 T^{3} + \cdots + 2096)^{2} \) Copy content Toggle raw display
$37$ \( (T^{4} + 61 T^{2} + 1369)^{2} \) Copy content Toggle raw display
$41$ \( T^{8} - 11 T^{7} + \cdots + 63001 \) Copy content Toggle raw display
$43$ \( (T^{4} - 13 T^{3} + \cdots - 2804)^{2} \) Copy content Toggle raw display
$47$ \( (T^{4} + 2 T^{3} - 57 T^{2} + \cdots - 4)^{2} \) Copy content Toggle raw display
$53$ \( T^{8} + 8 T^{7} + \cdots + 309136 \) Copy content Toggle raw display
$59$ \( T^{8} + 9 T^{7} + \cdots + 17438976 \) Copy content Toggle raw display
$61$ \( T^{8} - 26 T^{7} + \cdots + 42458256 \) Copy content Toggle raw display
$67$ \( T^{8} - 25 T^{7} + \cdots + 396010000 \) Copy content Toggle raw display
$71$ \( T^{8} + 10 T^{7} + \cdots + 952576 \) Copy content Toggle raw display
$73$ \( (T^{2} - 52)^{4} \) Copy content Toggle raw display
$79$ \( T^{8} - 5 T^{7} + \cdots + 16 \) Copy content Toggle raw display
$83$ \( T^{8} + 12 T^{7} + \cdots + 1048576 \) Copy content Toggle raw display
$89$ \( T^{8} - 20 T^{7} + \cdots + 8410000 \) Copy content Toggle raw display
$97$ \( (T^{4} + 7 T^{3} + \cdots - 5771)^{2} \) Copy content Toggle raw display
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