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Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [80,22,Mod(1,80)] 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("80.1"); S:= CuspForms(chi, 22); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(80, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0, 0, 0])) N = Newforms(chi, 22, names="a")
 
Level: \( N \) \(=\) \( 80 = 2^{4} \cdot 5 \)
Weight: \( k \) \(=\) \( 22 \)
Character orbit: \([\chi]\) \(=\) 80.a (trivial)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [3,0,-52194] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(3)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: yes
Analytic conductor: \(223.581875430\)
Analytic rank: \(0\)
Dimension: \(3\)
Coefficient field: \(\mathbb{Q}[x]/(x^{3} - \cdots)\)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{3} - x^{2} - 54559x - 2833496 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{7}]\)
Coefficient ring index: \( 2^{12}\cdot 3\cdot 5 \)
Twist minimal: no (minimal twist has level 5)
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.

\(f(q)\) \(=\) \( q + (\beta_{2} - 17398) q^{3} - 9765625 q^{5} + ( - 4431 \beta_{2} - 16541 \beta_1 - 228133339) q^{7} + ( - 79572 \beta_{2} + 274266 \beta_1 + 668450451) q^{9} + ( - 615070 \beta_{2} + \cdots - 1062715357) q^{11}+ \cdots + ( - 45\!\cdots\!46 \beta_{2} + \cdots + 43\!\cdots\!03) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 3 q - 52194 q^{3} - 29296875 q^{5} - 684416558 q^{7} + 2005625619 q^{9} - 3188512736 q^{11} - 806175066506 q^{13} + 509707031250 q^{15} - 16961161134802 q^{17} + 44935143007580 q^{19} - 144461757746124 q^{21}+ \cdots + 13\!\cdots\!72 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{3} - x^{2} - 54559x - 2833496 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( -64\nu^{2} - 5184\nu + 2329633 ) / 99 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( -48\nu^{2} + 6672\nu + 1743680 ) / 11 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( 4\beta_{2} - 27\beta _1 + 1289 ) / 3840 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( -108\beta_{2} - 1251\beta _1 + 46557857 ) / 1280 \) 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
−200.579
256.626
−55.0474
0 −156099. 0 −9.76562e6 0 2.53688e8 0 1.39065e10 0
1.2 0 9397.92 0 −9.76562e6 0 1.90393e8 0 −1.03720e10 0
1.3 0 94506.8 0 −9.76562e6 0 −1.12850e9 0 −1.52881e9 0
\(n\): e.g. 2-40 or 80-90
Significant digits:
Format:

Atkin-Lehner signs

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

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 80.22.a.e 3
4.b odd 2 1 5.22.a.a ✓ 3
12.b even 2 1 45.22.a.d 3
20.d odd 2 1 25.22.a.b 3
20.e even 4 2 25.22.b.b 6
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
5.22.a.a ✓ 3 4.b odd 2 1
25.22.a.b 3 20.d odd 2 1
25.22.b.b 6 20.e even 4 2
45.22.a.d 3 12.b even 2 1
80.22.a.e 3 1.a even 1 1 trivial

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{3}^{3} + 52194T_{3}^{2} - 15331235796T_{3} + 138641899095576 \) acting on \(S_{22}^{\mathrm{new}}(\Gamma_0(80))\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{3} \) Copy content Toggle raw display
$3$ \( T^{3} + \cdots + 138641899095576 \) Copy content Toggle raw display
$5$ \( (T + 9765625)^{3} \) Copy content Toggle raw display
$7$ \( T^{3} + \cdots + 54\!\cdots\!88 \) Copy content Toggle raw display
$11$ \( T^{3} + \cdots - 36\!\cdots\!72 \) Copy content Toggle raw display
$13$ \( T^{3} + \cdots - 17\!\cdots\!36 \) Copy content Toggle raw display
$17$ \( T^{3} + \cdots - 18\!\cdots\!88 \) Copy content Toggle raw display
$19$ \( T^{3} + \cdots - 30\!\cdots\!00 \) Copy content Toggle raw display
$23$ \( T^{3} + \cdots - 19\!\cdots\!04 \) Copy content Toggle raw display
$29$ \( T^{3} + \cdots + 85\!\cdots\!00 \) Copy content Toggle raw display
$31$ \( T^{3} + \cdots + 17\!\cdots\!68 \) Copy content Toggle raw display
$37$ \( T^{3} + \cdots - 23\!\cdots\!88 \) Copy content Toggle raw display
$41$ \( T^{3} + \cdots - 96\!\cdots\!88 \) Copy content Toggle raw display
$43$ \( T^{3} + \cdots - 11\!\cdots\!84 \) Copy content Toggle raw display
$47$ \( T^{3} + \cdots - 88\!\cdots\!12 \) Copy content Toggle raw display
$53$ \( T^{3} + \cdots - 87\!\cdots\!76 \) Copy content Toggle raw display
$59$ \( T^{3} + \cdots + 25\!\cdots\!00 \) Copy content Toggle raw display
$61$ \( T^{3} + \cdots + 39\!\cdots\!72 \) Copy content Toggle raw display
$67$ \( T^{3} + \cdots + 33\!\cdots\!88 \) Copy content Toggle raw display
$71$ \( T^{3} + \cdots + 55\!\cdots\!48 \) Copy content Toggle raw display
$73$ \( T^{3} + \cdots + 45\!\cdots\!04 \) Copy content Toggle raw display
$79$ \( T^{3} + \cdots - 60\!\cdots\!00 \) Copy content Toggle raw display
$83$ \( T^{3} + \cdots - 41\!\cdots\!44 \) Copy content Toggle raw display
$89$ \( T^{3} + \cdots + 77\!\cdots\!00 \) Copy content Toggle raw display
$97$ \( T^{3} + \cdots + 27\!\cdots\!12 \) Copy content Toggle raw display
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