Show commands: Magma / Pari/GP / SageMath

Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [50,22,Mod(1,50)] 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("50.1"); S:= CuspForms(chi, 22); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(50, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0])) N = Newforms(chi, 22, names="a")
 
Level: \( N \) \(=\) \( 50 = 2 \cdot 5^{2} \)
Weight: \( k \) \(=\) \( 22 \)
Character orbit: \([\chi]\) \(=\) 50.a (trivial)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [3,-3072,-46383] 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: \(139.738672144\)
Analytic rank: \(1\)
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: \( x^{3} - x^{2} - 30959316x - 11291332284 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{7}]\)
Coefficient ring index: \( 2^{5}\cdot 3^{2}\cdot 5^{4} \)
Twist minimal: yes
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.

\(f(q)\) \(=\) \( q - 1024 q^{2} + (\beta_1 - 15461) q^{3} + 1048576 q^{4} + ( - 1024 \beta_1 + 15832064) q^{6} + (\beta_{2} - 3810 \beta_1 + 303925078) q^{7} - 1073741824 q^{8} + (27 \beta_{2} - 14496 \beta_1 + 8354279118) q^{9}+ \cdots + ( - 519664869189 \beta_{2} + \cdots - 39\!\cdots\!94) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 3 q - 3072 q^{2} - 46383 q^{3} + 3145728 q^{4} + 47496192 q^{6} + 911775234 q^{7} - 3221225472 q^{8} + 25062837354 q^{9} - 77565926349 q^{11} - 48636100608 q^{12} - 29305708548 q^{13} - 933657839616 q^{14}+ \cdots - 11\!\cdots\!82 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{3} - x^{2} - 30959316x - 11291332284 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( 30\nu - 10 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( 100\nu^{2} - 54820\nu - 2063936160 ) / 3 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta _1 + 10 ) / 30 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( 9\beta_{2} + 5482\beta _1 + 6191863300 ) / 300 \) 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
−5371.39
−366.307
5738.70
−1024.00 −176613. 1.04858e6 0 1.80851e8 1.28981e9 −1.07374e9 2.07317e10 0
1.2 −1024.00 −26460.2 1.04858e6 0 2.70953e7 −3.30980e8 −1.07374e9 −9.76021e9 0
1.3 −1024.00 156690. 1.04858e6 0 −1.60450e8 −4.70592e7 −1.07374e9 1.40914e10 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 50.22.a.g 3
5.b even 2 1 50.22.a.h yes 3
5.c odd 4 2 50.22.b.g 6
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
50.22.a.g 3 1.a even 1 1 trivial
50.22.a.h yes 3 5.b even 2 1
50.22.b.g 6 5.c odd 4 2

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{3}^{3} + 46383T_{3}^{2} - 27146257137T_{3} - 732244559943519 \) acting on \(S_{22}^{\mathrm{new}}(\Gamma_0(50))\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( (T + 1024)^{3} \) Copy content Toggle raw display
$3$ \( T^{3} + \cdots - 732244559943519 \) Copy content Toggle raw display
$5$ \( T^{3} \) Copy content Toggle raw display
$7$ \( T^{3} + \cdots - 20\!\cdots\!52 \) Copy content Toggle raw display
$11$ \( T^{3} + \cdots - 77\!\cdots\!13 \) Copy content Toggle raw display
$13$ \( T^{3} + \cdots + 13\!\cdots\!96 \) Copy content Toggle raw display
$17$ \( T^{3} + \cdots + 11\!\cdots\!33 \) Copy content Toggle raw display
$19$ \( T^{3} + \cdots - 89\!\cdots\!25 \) Copy content Toggle raw display
$23$ \( T^{3} + \cdots - 10\!\cdots\!04 \) Copy content Toggle raw display
$29$ \( T^{3} + \cdots + 19\!\cdots\!00 \) Copy content Toggle raw display
$31$ \( T^{3} + \cdots - 31\!\cdots\!88 \) Copy content Toggle raw display
$37$ \( T^{3} + \cdots - 32\!\cdots\!32 \) Copy content Toggle raw display
$41$ \( T^{3} + \cdots - 23\!\cdots\!93 \) Copy content Toggle raw display
$43$ \( T^{3} + \cdots - 40\!\cdots\!24 \) Copy content Toggle raw display
$47$ \( T^{3} + \cdots + 10\!\cdots\!68 \) Copy content Toggle raw display
$53$ \( T^{3} + \cdots - 10\!\cdots\!24 \) Copy content Toggle raw display
$59$ \( T^{3} + \cdots - 12\!\cdots\!00 \) Copy content Toggle raw display
$61$ \( T^{3} + \cdots - 35\!\cdots\!68 \) Copy content Toggle raw display
$67$ \( T^{3} + \cdots + 16\!\cdots\!23 \) Copy content Toggle raw display
$71$ \( T^{3} + \cdots - 16\!\cdots\!88 \) Copy content Toggle raw display
$73$ \( T^{3} + \cdots + 72\!\cdots\!91 \) Copy content Toggle raw display
$79$ \( T^{3} + \cdots + 48\!\cdots\!00 \) Copy content Toggle raw display
$83$ \( T^{3} + \cdots - 23\!\cdots\!29 \) Copy content Toggle raw display
$89$ \( T^{3} + \cdots - 19\!\cdots\!75 \) Copy content Toggle raw display
$97$ \( T^{3} + \cdots + 10\!\cdots\!08 \) Copy content Toggle raw display
show more
show less