Properties

Label 1936.2.a.h
Level $1936$
Weight $2$
Character orbit 1936.a
Self dual yes
Analytic conductor $15.459$
Analytic rank $0$
Dimension $1$
CM discriminant -11
Inner twists $2$

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Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [1936,2,Mod(1,1936)] mf = mfinit([N,k,chi],0) lf = mfeigenbasis(mf)
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(1936, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0, 0, 0])) N = Newforms(chi, 2, names="a")
 
Copy content magma://Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code chi := DirichletCharacter("1936.1"); S:= CuspForms(chi, 2); N := Newforms(S);
 
Level: \( N \) \(=\) \( 1936 = 2^{4} \cdot 11^{2} \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 1936.a (trivial)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [1,0,1,0,-3,0,0] 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: \(15.4590378313\)
Analytic rank: \(0\)
Dimension: \(1\)
Coefficient field: \(\mathbb{Q}\)
Coefficient ring: \(\mathbb{Z}\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 121)
Fricke sign: \(-1\)
Sato-Tate group: $N(\mathrm{U}(1))$

$q$-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)
 
\(f(q)\) \(=\) \( q + q^{3} - 3 q^{5} - 2 q^{9} - 3 q^{15} + 9 q^{23} + 4 q^{25} - 5 q^{27} + 5 q^{31} + 7 q^{37} + 6 q^{45} + 12 q^{47} - 7 q^{49} + 6 q^{53} + 15 q^{59} - 13 q^{67} + 9 q^{69} + 3 q^{71} + 4 q^{75} + q^{81}+ \cdots + 17 q^{97}+O(q^{100}) \) 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
0
0 1.00000 0 −3.00000 0 0 0 −2.00000 0
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Atkin-Lehner signs

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

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
11.b odd 2 1 CM by \(\Q(\sqrt{-11}) \)

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 1936.2.a.h 1
4.b odd 2 1 121.2.a.b 1
8.b even 2 1 7744.2.a.n 1
8.d odd 2 1 7744.2.a.bb 1
11.b odd 2 1 CM 1936.2.a.h 1
12.b even 2 1 1089.2.a.g 1
20.d odd 2 1 3025.2.a.d 1
28.d even 2 1 5929.2.a.e 1
44.c even 2 1 121.2.a.b 1
44.g even 10 4 121.2.c.c 4
44.h odd 10 4 121.2.c.c 4
88.b odd 2 1 7744.2.a.n 1
88.g even 2 1 7744.2.a.bb 1
132.d odd 2 1 1089.2.a.g 1
220.g even 2 1 3025.2.a.d 1
308.g odd 2 1 5929.2.a.e 1
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
121.2.a.b 1 4.b odd 2 1
121.2.a.b 1 44.c even 2 1
121.2.c.c 4 44.g even 10 4
121.2.c.c 4 44.h odd 10 4
1089.2.a.g 1 12.b even 2 1
1089.2.a.g 1 132.d odd 2 1
1936.2.a.h 1 1.a even 1 1 trivial
1936.2.a.h 1 11.b odd 2 1 CM
3025.2.a.d 1 20.d odd 2 1
3025.2.a.d 1 220.g even 2 1
5929.2.a.e 1 28.d even 2 1
5929.2.a.e 1 308.g odd 2 1
7744.2.a.n 1 8.b even 2 1
7744.2.a.n 1 88.b odd 2 1
7744.2.a.bb 1 8.d odd 2 1
7744.2.a.bb 1 88.g even 2 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(\Gamma_0(1936))\):

\( T_{3} - 1 \) Copy content Toggle raw display
\( T_{5} + 3 \) Copy content Toggle raw display
\( T_{7} \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T \) Copy content Toggle raw display
$3$ \( T - 1 \) Copy content Toggle raw display
$5$ \( T + 3 \) Copy content Toggle raw display
$7$ \( T \) Copy content Toggle raw display
$11$ \( T \) Copy content Toggle raw display
$13$ \( T \) Copy content Toggle raw display
$17$ \( T \) Copy content Toggle raw display
$19$ \( T \) Copy content Toggle raw display
$23$ \( T - 9 \) Copy content Toggle raw display
$29$ \( T \) Copy content Toggle raw display
$31$ \( T - 5 \) Copy content Toggle raw display
$37$ \( T - 7 \) Copy content Toggle raw display
$41$ \( T \) Copy content Toggle raw display
$43$ \( T \) Copy content Toggle raw display
$47$ \( T - 12 \) Copy content Toggle raw display
$53$ \( T - 6 \) Copy content Toggle raw display
$59$ \( T - 15 \) Copy content Toggle raw display
$61$ \( T \) Copy content Toggle raw display
$67$ \( T + 13 \) Copy content Toggle raw display
$71$ \( T - 3 \) Copy content Toggle raw display
$73$ \( T \) Copy content Toggle raw display
$79$ \( T \) Copy content Toggle raw display
$83$ \( T \) Copy content Toggle raw display
$89$ \( T + 9 \) Copy content Toggle raw display
$97$ \( T - 17 \) Copy content Toggle raw display
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