Properties

Label 1980.4.a.l
Level $1980$
Weight $4$
Character orbit 1980.a
Self dual yes
Analytic conductor $116.824$
Analytic rank $1$
Dimension $3$
CM no
Inner twists $1$

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Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [1980,4,Mod(1,1980)] 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("1980.1"); S:= CuspForms(chi, 4); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(1980, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0, 0, 0, 0])) N = Newforms(chi, 4, names="a")
 
Level: \( N \) \(=\) \( 1980 = 2^{2} \cdot 3^{2} \cdot 5 \cdot 11 \)
Weight: \( k \) \(=\) \( 4 \)
Character orbit: \([\chi]\) \(=\) 1980.a (trivial)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [3,0,0,0,15,0,-5] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(7)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: yes
Analytic conductor: \(116.823781811\)
Analytic rank: \(1\)
Dimension: \(3\)
Coefficient field: 3.3.9192.1
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{3} - x^{2} - 18x + 30 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{13}]\)
Coefficient ring index: \( 2 \)
Twist minimal: no (minimal twist has level 220)
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.

\(f(q)\) \(=\) \( q + 5 q^{5} + (2 \beta_{2} - \beta_1 - 2) q^{7} - 11 q^{11} + (3 \beta_{2} - 5 \beta_1 - 1) q^{13} + ( - 5 \beta_{2} + 8 \beta_1 - 23) q^{17} + ( - 2 \beta_{2} + 9 \beta_1 + 60) q^{19} + ( - 7 \beta_{2} - 15 \beta_1 - 79) q^{23}+ \cdots + ( - 118 \beta_{2} - 168 \beta_1 - 716) q^{97}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 3 q + 15 q^{5} - 5 q^{7} - 33 q^{11} + 2 q^{13} - 77 q^{17} + 171 q^{19} - 222 q^{23} + 75 q^{25} - 55 q^{29} + 181 q^{31} - 25 q^{35} + 317 q^{37} - 302 q^{41} - 188 q^{43} - 662 q^{47} - 268 q^{49} - 81 q^{53}+ \cdots - 1980 q^{97}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{3} - x^{2} - 18x + 30 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( -\nu^{2} + 12 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( \nu^{2} + 2\nu - 13 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_{2} + \beta _1 + 1 ) / 2 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( -\beta _1 + 12 \) 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
1.81626
−4.49274
3.67648
0 0 0 5.00000 0 −22.8386 0 0 0
1.2 0 0 0 5.00000 0 2.58315 0 0 0
1.3 0 0 0 5.00000 0 15.2554 0 0 0
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(2\) \( -1 \)
\(3\) \( -1 \)
\(5\) \( -1 \)
\(11\) \( +1 \)

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 1980.4.a.l 3
3.b odd 2 1 220.4.a.f 3
12.b even 2 1 880.4.a.w 3
15.d odd 2 1 1100.4.a.i 3
15.e even 4 2 1100.4.b.h 6
33.d even 2 1 2420.4.a.i 3
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
220.4.a.f 3 3.b odd 2 1
880.4.a.w 3 12.b even 2 1
1100.4.a.i 3 15.d odd 2 1
1100.4.b.h 6 15.e even 4 2
1980.4.a.l 3 1.a even 1 1 trivial
2420.4.a.i 3 33.d even 2 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{4}^{\mathrm{new}}(\Gamma_0(1980))\):

\( T_{7}^{3} + 5T_{7}^{2} - 368T_{7} + 900 \) Copy content Toggle raw display
\( T_{17}^{3} + 77T_{17}^{2} - 5928T_{17} - 455496 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{3} \) Copy content Toggle raw display
$3$ \( T^{3} \) Copy content Toggle raw display
$5$ \( (T - 5)^{3} \) Copy content Toggle raw display
$7$ \( T^{3} + 5 T^{2} + \cdots + 900 \) Copy content Toggle raw display
$11$ \( (T + 11)^{3} \) Copy content Toggle raw display
$13$ \( T^{3} - 2 T^{2} + \cdots + 65360 \) Copy content Toggle raw display
$17$ \( T^{3} + 77 T^{2} + \cdots - 455496 \) Copy content Toggle raw display
$19$ \( T^{3} - 171 T^{2} + \cdots + 46336 \) Copy content Toggle raw display
$23$ \( T^{3} + 222 T^{2} + \cdots - 1048464 \) Copy content Toggle raw display
$29$ \( T^{3} + 55 T^{2} + \cdots - 1502868 \) Copy content Toggle raw display
$31$ \( T^{3} - 181 T^{2} + \cdots + 10494720 \) Copy content Toggle raw display
$37$ \( T^{3} - 317 T^{2} + \cdots + 45828764 \) Copy content Toggle raw display
$41$ \( T^{3} + 302 T^{2} + \cdots - 4589880 \) Copy content Toggle raw display
$43$ \( T^{3} + 188 T^{2} + \cdots - 51956064 \) Copy content Toggle raw display
$47$ \( T^{3} + 662 T^{2} + \cdots - 3431760 \) Copy content Toggle raw display
$53$ \( T^{3} + 81 T^{2} + \cdots - 47414700 \) Copy content Toggle raw display
$59$ \( T^{3} - 42 T^{2} + \cdots - 46277856 \) Copy content Toggle raw display
$61$ \( T^{3} - 349 T^{2} + \cdots + 44132796 \) Copy content Toggle raw display
$67$ \( T^{3} - 152 T^{2} + \cdots - 30647104 \) Copy content Toggle raw display
$71$ \( T^{3} + 927 T^{2} + \cdots - 103206528 \) Copy content Toggle raw display
$73$ \( T^{3} + 2378 T^{2} + \cdots + 374556144 \) Copy content Toggle raw display
$79$ \( T^{3} + 1146 T^{2} + \cdots + 14051104 \) Copy content Toggle raw display
$83$ \( T^{3} - 458 T^{2} + \cdots - 95875608 \) Copy content Toggle raw display
$89$ \( T^{3} - 875 T^{2} + \cdots - 3833436 \) Copy content Toggle raw display
$97$ \( T^{3} + \cdots - 1770497888 \) Copy content Toggle raw display
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