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Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [2240,4,Mod(1,2240)] 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("2240.1"); S:= CuspForms(chi, 4); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(2240, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0, 0, 0, 0])) N = Newforms(chi, 4, names="a")
 
Level: \( N \) \(=\) \( 2240 = 2^{6} \cdot 5 \cdot 7 \)
Weight: \( k \) \(=\) \( 4 \)
Character orbit: \([\chi]\) \(=\) 2240.a (trivial)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [3,0,-2,0,15,0,21,0,41,0,-10] 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: yes
Analytic conductor: \(132.164278413\)
Analytic rank: \(0\)
Dimension: \(3\)
Coefficient field: 3.3.6053.1
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{3} - 20x - 31 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{11}]\)
Coefficient ring index: \( 2^{2} \)
Twist minimal: no (minimal twist has level 280)
Fricke sign: \(+1\)
Sato-Tate group: $\mathrm{SU}(2)$

$q$-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 \(1,\beta_1,\beta_2\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + (\beta_1 - 1) q^{3} + 5 q^{5} + 7 q^{7} + (3 \beta_{2} - \beta_1 + 13) q^{9} + (\beta_{2} + 7 \beta_1 - 6) q^{11} + (6 \beta_{2} + \beta_1 + 19) q^{13} + (5 \beta_1 - 5) q^{15} + (4 \beta_{2} + 5 \beta_1 + 41) q^{17}+ \cdots + ( - 44 \beta_{2} + 218 \beta_1 - 306) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 3 q - 2 q^{3} + 15 q^{5} + 21 q^{7} + 41 q^{9} - 10 q^{11} + 64 q^{13} - 10 q^{15} + 132 q^{17} - 160 q^{19} - 14 q^{21} + 40 q^{23} + 75 q^{25} - 182 q^{27} - 348 q^{29} + 396 q^{31} + 822 q^{33} + 105 q^{35}+ \cdots - 744 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{3} - 20x - 31 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( \nu^{2} - \nu - 13 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( -2\nu^{2} + 6\nu + 27 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_{2} + 2\beta _1 - 1 ) / 4 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( \beta_{2} + 6\beta _1 + 51 ) / 4 \) Copy content Toggle raw display

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
1.1
−1.88477
−3.22124
5.10600
0 −8.56288 0 5.00000 0 7.00000 0 46.3230 0
1.2 0 −0.402395 0 5.00000 0 7.00000 0 −26.8381 0
1.3 0 6.96528 0 5.00000 0 7.00000 0 21.5151 0
\(n\): e.g. 2-40 or 80-90
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(2\) \( +1 \)
\(5\) \( -1 \)
\(7\) \( -1 \)

Inner twists

This newform does not admit any (nontrivial) inner twists.

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 2240.4.a.bu 3
4.b odd 2 1 2240.4.a.bx 3
8.b even 2 1 280.4.a.h ✓ 3
8.d odd 2 1 560.4.a.t 3
40.f even 2 1 1400.4.a.k 3
40.i odd 4 2 1400.4.g.k 6
56.h odd 2 1 1960.4.a.p 3
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
280.4.a.h ✓ 3 8.b even 2 1
560.4.a.t 3 8.d odd 2 1
1400.4.a.k 3 40.f even 2 1
1400.4.g.k 6 40.i odd 4 2
1960.4.a.p 3 56.h odd 2 1
2240.4.a.bu 3 1.a even 1 1 trivial
2240.4.a.bx 3 4.b odd 2 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{4}^{\mathrm{new}}(\Gamma_0(2240))\):

\( T_{3}^{3} + 2T_{3}^{2} - 59T_{3} - 24 \) Copy content Toggle raw display
\( T_{11}^{3} + 10T_{11}^{2} - 2855T_{11} - 41444 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{3} \) Copy content Toggle raw display
$3$ \( T^{3} + 2 T^{2} + \cdots - 24 \) Copy content Toggle raw display
$5$ \( (T - 5)^{3} \) Copy content Toggle raw display
$7$ \( (T - 7)^{3} \) Copy content Toggle raw display
$11$ \( T^{3} + 10 T^{2} + \cdots - 41444 \) Copy content Toggle raw display
$13$ \( T^{3} - 64 T^{2} + \cdots + 222154 \) Copy content Toggle raw display
$17$ \( T^{3} - 132 T^{2} + \cdots + 32150 \) Copy content Toggle raw display
$19$ \( T^{3} + 160 T^{2} + \cdots - 190112 \) Copy content Toggle raw display
$23$ \( T^{3} - 40 T^{2} + \cdots + 368384 \) Copy content Toggle raw display
$29$ \( T^{3} + 348 T^{2} + \cdots - 4436914 \) Copy content Toggle raw display
$31$ \( T^{3} - 396 T^{2} + \cdots + 22286720 \) Copy content Toggle raw display
$37$ \( T^{3} - 18 T^{2} + \cdots - 4740504 \) Copy content Toggle raw display
$41$ \( T^{3} - 478 T^{2} + \cdots + 86470176 \) Copy content Toggle raw display
$43$ \( T^{3} - 220 T^{2} + \cdots - 272176 \) Copy content Toggle raw display
$47$ \( T^{3} + 270 T^{2} + \cdots - 9181688 \) Copy content Toggle raw display
$53$ \( T^{3} + 718 T^{2} + \cdots - 45700128 \) Copy content Toggle raw display
$59$ \( T^{3} + 480 T^{2} + \cdots - 111751168 \) Copy content Toggle raw display
$61$ \( T^{3} + 358 T^{2} + \cdots + 751840 \) Copy content Toggle raw display
$67$ \( T^{3} - 2172 T^{2} + \cdots - 333271616 \) Copy content Toggle raw display
$71$ \( T^{3} - 368 T^{2} + \cdots + 307200 \) Copy content Toggle raw display
$73$ \( T^{3} - 510 T^{2} + \cdots + 488314008 \) Copy content Toggle raw display
$79$ \( T^{3} + 150 T^{2} + \cdots - 17020488 \) Copy content Toggle raw display
$83$ \( T^{3} + 1056 T^{2} + \cdots - 376174336 \) Copy content Toggle raw display
$89$ \( T^{3} - 422 T^{2} + \cdots - 18067296 \) Copy content Toggle raw display
$97$ \( T^{3} + 1172 T^{2} + \cdots - 204617466 \) Copy content Toggle raw display
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