Properties

Label 8512.2.a.bf
Level $8512$
Weight $2$
Character orbit 8512.a
Self dual yes
Analytic conductor $67.969$
Analytic rank $0$
Dimension $2$
CM no
Inner twists $1$

Related objects

Downloads

Learn more

Show commands: Magma / Pari/GP / SageMath

Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [8512,2,Mod(1,8512)] 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("8512.1"); S:= CuspForms(chi, 2); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(8512, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0, 0, 0, 0])) N = Newforms(chi, 2, names="a")
 
Level: \( N \) \(=\) \( 8512 = 2^{6} \cdot 7 \cdot 19 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 8512.a (trivial)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [2,0,3,0,0,0,2] 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: \(67.9686622005\)
Analytic rank: \(0\)
Dimension: \(2\)
Coefficient field: \(\Q(\sqrt{5}) \)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{2} - x - 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2, a_3]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 1064)
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 \(\beta = \frac{1}{2}(1 + \sqrt{5})\). We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + (\beta + 1) q^{3} + (2 \beta - 1) q^{5} + q^{7} + (3 \beta - 1) q^{9} + ( - 3 \beta + 2) q^{11} + ( - 2 \beta + 5) q^{13} + (3 \beta + 1) q^{15} + (3 \beta - 4) q^{17} - q^{19} + (\beta + 1) q^{21}+ \cdots - 11 q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2 q + 3 q^{3} + 2 q^{7} + q^{9} + q^{11} + 8 q^{13} + 5 q^{15} - 5 q^{17} - 2 q^{19} + 3 q^{21} + 8 q^{23} + 11 q^{29} - 7 q^{31} - 6 q^{33} + 6 q^{37} + 7 q^{39} - q^{41} - 4 q^{43} + 15 q^{45} + 14 q^{47}+ \cdots - 22 q^{99}+O(q^{100}) \) 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
−0.618034
1.61803
0 0.381966 0 −2.23607 0 1.00000 0 −2.85410 0
1.2 0 2.61803 0 2.23607 0 1.00000 0 3.85410 0
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(2\) \( +1 \)
\(7\) \( -1 \)
\(19\) \( +1 \)

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 8512.2.a.bf 2
4.b odd 2 1 8512.2.a.i 2
8.b even 2 1 1064.2.a.a 2
8.d odd 2 1 2128.2.a.n 2
24.h odd 2 1 9576.2.a.bm 2
56.h odd 2 1 7448.2.a.bc 2
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
1064.2.a.a 2 8.b even 2 1
2128.2.a.n 2 8.d odd 2 1
7448.2.a.bc 2 56.h odd 2 1
8512.2.a.i 2 4.b odd 2 1
8512.2.a.bf 2 1.a even 1 1 trivial
9576.2.a.bm 2 24.h odd 2 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(\Gamma_0(8512))\):

\( T_{3}^{2} - 3T_{3} + 1 \) Copy content Toggle raw display
\( T_{5}^{2} - 5 \) Copy content Toggle raw display
\( T_{11}^{2} - T_{11} - 11 \) Copy content Toggle raw display
\( T_{23}^{2} - 8T_{23} + 11 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{2} \) Copy content Toggle raw display
$3$ \( T^{2} - 3T + 1 \) Copy content Toggle raw display
$5$ \( T^{2} - 5 \) Copy content Toggle raw display
$7$ \( (T - 1)^{2} \) Copy content Toggle raw display
$11$ \( T^{2} - T - 11 \) Copy content Toggle raw display
$13$ \( T^{2} - 8T + 11 \) Copy content Toggle raw display
$17$ \( T^{2} + 5T - 5 \) Copy content Toggle raw display
$19$ \( (T + 1)^{2} \) Copy content Toggle raw display
$23$ \( T^{2} - 8T + 11 \) Copy content Toggle raw display
$29$ \( T^{2} - 11T + 29 \) Copy content Toggle raw display
$31$ \( T^{2} + 7T + 11 \) Copy content Toggle raw display
$37$ \( T^{2} - 6T - 11 \) Copy content Toggle raw display
$41$ \( T^{2} + T - 101 \) Copy content Toggle raw display
$43$ \( T^{2} + 4T - 76 \) Copy content Toggle raw display
$47$ \( (T - 7)^{2} \) Copy content Toggle raw display
$53$ \( T^{2} + 3T - 9 \) Copy content Toggle raw display
$59$ \( T^{2} - 8T - 29 \) Copy content Toggle raw display
$61$ \( T^{2} - 12T - 9 \) Copy content Toggle raw display
$67$ \( T^{2} - 9T + 19 \) Copy content Toggle raw display
$71$ \( T^{2} + 10T - 55 \) Copy content Toggle raw display
$73$ \( T^{2} + 7T + 1 \) Copy content Toggle raw display
$79$ \( T^{2} - 20 \) Copy content Toggle raw display
$83$ \( T^{2} - 25T + 155 \) Copy content Toggle raw display
$89$ \( T^{2} - 6T + 4 \) Copy content Toggle raw display
$97$ \( T^{2} + 12T + 31 \) Copy content Toggle raw display
show more
show less