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Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [2268,2,Mod(757,2268)] 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("2268.757"); S:= CuspForms(chi, 2); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(2268, base_ring=CyclotomicField(6)) chi = DirichletCharacter(H, H._module([0, 2, 0])) N = Newforms(chi, 2, names="a")
 
Level: \( N \) \(=\) \( 2268 = 2^{2} \cdot 3^{4} \cdot 7 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 2268.j (of order \(3\), degree \(2\), not minimal)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [2,0,0,0,0,0,-1,0,0,0,6,0,-2] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(13)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: no
Analytic conductor: \(18.1100711784\)
Analytic rank: \(0\)
Dimension: \(2\)
Coefficient field: \(\Q(\sqrt{-3}) \)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{2} - x + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{7}]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 84)
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 primitive root of unity \(\zeta_{6}\). We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + (\zeta_{6} - 1) q^{7} + ( - 6 \zeta_{6} + 6) q^{11} - 2 \zeta_{6} q^{13} - 4 q^{19} + 6 \zeta_{6} q^{23} + ( - 5 \zeta_{6} + 5) q^{25} + (6 \zeta_{6} - 6) q^{29} - 8 \zeta_{6} q^{31} + 2 q^{37} - 12 \zeta_{6} q^{41} + \cdots + ( - 10 \zeta_{6} + 10) q^{97} +O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2 q - q^{7} + 6 q^{11} - 2 q^{13} - 8 q^{19} + 6 q^{23} + 5 q^{25} - 6 q^{29} - 8 q^{31} + 4 q^{37} - 12 q^{41} + 4 q^{43} - 12 q^{47} - q^{49} - 12 q^{53} + 10 q^{61} - 8 q^{67} + 12 q^{71} - 20 q^{73}+ \cdots + 10 q^{97}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/2268\mathbb{Z}\right)^\times\).

\(n\) \(325\) \(1135\) \(1541\)
\(\chi(n)\) \(1\) \(1\) \(-\zeta_{6}\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
757.1
0.500000 − 0.866025i
0.500000 + 0.866025i
0 0 0 0 0 −0.500000 − 0.866025i 0 0 0
1513.1 0 0 0 0 0 −0.500000 + 0.866025i 0 0 0
\(n\): e.g. 2-40 or 80-90
Significant digits:
Format:

Inner twists

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

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 2268.2.j.i 2
3.b odd 2 1 2268.2.j.f 2
9.c even 3 1 84.2.a.b ✓ 1
9.c even 3 1 inner 2268.2.j.i 2
9.d odd 6 1 252.2.a.b 1
9.d odd 6 1 2268.2.j.f 2
36.f odd 6 1 336.2.a.b 1
36.h even 6 1 1008.2.a.g 1
45.h odd 6 1 6300.2.a.p 1
45.j even 6 1 2100.2.a.a 1
45.k odd 12 2 2100.2.k.a 2
45.l even 12 2 6300.2.k.r 2
63.g even 3 1 588.2.i.c 2
63.h even 3 1 588.2.i.c 2
63.i even 6 1 1764.2.k.d 2
63.j odd 6 1 1764.2.k.e 2
63.k odd 6 1 588.2.i.f 2
63.l odd 6 1 588.2.a.c 1
63.n odd 6 1 1764.2.k.e 2
63.o even 6 1 1764.2.a.g 1
63.s even 6 1 1764.2.k.d 2
63.t odd 6 1 588.2.i.f 2
72.j odd 6 1 4032.2.a.u 1
72.l even 6 1 4032.2.a.t 1
72.n even 6 1 1344.2.a.f 1
72.p odd 6 1 1344.2.a.o 1
144.v odd 12 2 5376.2.c.x 2
144.x even 12 2 5376.2.c.i 2
180.p odd 6 1 8400.2.a.ct 1
252.n even 6 1 2352.2.q.g 2
252.s odd 6 1 7056.2.a.x 1
252.u odd 6 1 2352.2.q.s 2
252.bi even 6 1 2352.2.a.s 1
252.bj even 6 1 2352.2.q.g 2
252.bl odd 6 1 2352.2.q.s 2
504.be even 6 1 9408.2.a.r 1
504.bn odd 6 1 9408.2.a.co 1
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
84.2.a.b ✓ 1 9.c even 3 1
252.2.a.b 1 9.d odd 6 1
336.2.a.b 1 36.f odd 6 1
588.2.a.c 1 63.l odd 6 1
588.2.i.c 2 63.g even 3 1
588.2.i.c 2 63.h even 3 1
588.2.i.f 2 63.k odd 6 1
588.2.i.f 2 63.t odd 6 1
1008.2.a.g 1 36.h even 6 1
1344.2.a.f 1 72.n even 6 1
1344.2.a.o 1 72.p odd 6 1
1764.2.a.g 1 63.o even 6 1
1764.2.k.d 2 63.i even 6 1
1764.2.k.d 2 63.s even 6 1
1764.2.k.e 2 63.j odd 6 1
1764.2.k.e 2 63.n odd 6 1
2100.2.a.a 1 45.j even 6 1
2100.2.k.a 2 45.k odd 12 2
2268.2.j.f 2 3.b odd 2 1
2268.2.j.f 2 9.d odd 6 1
2268.2.j.i 2 1.a even 1 1 trivial
2268.2.j.i 2 9.c even 3 1 inner
2352.2.a.s 1 252.bi even 6 1
2352.2.q.g 2 252.n even 6 1
2352.2.q.g 2 252.bj even 6 1
2352.2.q.s 2 252.u odd 6 1
2352.2.q.s 2 252.bl odd 6 1
4032.2.a.t 1 72.l even 6 1
4032.2.a.u 1 72.j odd 6 1
5376.2.c.i 2 144.x even 12 2
5376.2.c.x 2 144.v odd 12 2
6300.2.a.p 1 45.h odd 6 1
6300.2.k.r 2 45.l even 12 2
7056.2.a.x 1 252.s odd 6 1
8400.2.a.ct 1 180.p odd 6 1
9408.2.a.r 1 504.be even 6 1
9408.2.a.co 1 504.bn odd 6 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(2268, [\chi])\):

\( T_{5} \) Copy content Toggle raw display
\( T_{11}^{2} - 6T_{11} + 36 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{2} \) Copy content Toggle raw display
$3$ \( T^{2} \) Copy content Toggle raw display
$5$ \( T^{2} \) Copy content Toggle raw display
$7$ \( T^{2} + T + 1 \) Copy content Toggle raw display
$11$ \( T^{2} - 6T + 36 \) Copy content Toggle raw display
$13$ \( T^{2} + 2T + 4 \) Copy content Toggle raw display
$17$ \( T^{2} \) Copy content Toggle raw display
$19$ \( (T + 4)^{2} \) Copy content Toggle raw display
$23$ \( T^{2} - 6T + 36 \) Copy content Toggle raw display
$29$ \( T^{2} + 6T + 36 \) Copy content Toggle raw display
$31$ \( T^{2} + 8T + 64 \) Copy content Toggle raw display
$37$ \( (T - 2)^{2} \) Copy content Toggle raw display
$41$ \( T^{2} + 12T + 144 \) Copy content Toggle raw display
$43$ \( T^{2} - 4T + 16 \) Copy content Toggle raw display
$47$ \( T^{2} + 12T + 144 \) Copy content Toggle raw display
$53$ \( (T + 6)^{2} \) Copy content Toggle raw display
$59$ \( T^{2} \) Copy content Toggle raw display
$61$ \( T^{2} - 10T + 100 \) Copy content Toggle raw display
$67$ \( T^{2} + 8T + 64 \) Copy content Toggle raw display
$71$ \( (T - 6)^{2} \) Copy content Toggle raw display
$73$ \( (T + 10)^{2} \) Copy content Toggle raw display
$79$ \( T^{2} - 4T + 16 \) Copy content Toggle raw display
$83$ \( T^{2} - 12T + 144 \) Copy content Toggle raw display
$89$ \( (T - 12)^{2} \) Copy content Toggle raw display
$97$ \( T^{2} - 10T + 100 \) Copy content Toggle raw display
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