Properties

Label 510.2.d.b
Level $510$
Weight $2$
Character orbit 510.d
Analytic conductor $4.072$
Analytic rank $0$
Dimension $4$
Inner twists $2$

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] = [510,2,Mod(409,510)] mf = mfinit([N,k,chi],0) lf = mfeigenbasis(mf)
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(510, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0, 1, 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("510.409"); S:= CuspForms(chi, 2); N := Newforms(S);
 
Level: \( N \) \(=\) \( 510 = 2 \cdot 3 \cdot 5 \cdot 17 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 510.d (of order \(2\), degree \(1\), minimal)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [4,0,0,-4,0] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(5)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: no
Analytic conductor: \(4.07237050309\)
Analytic rank: \(0\)
Dimension: \(4\)
Coefficient field: \(\Q(i, \sqrt{5})\)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{4} + 3x^{2} + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{5}]\)
Coefficient ring index: \( 2^{2} \)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{2}]$

$q$-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 \(1,\beta_1,\beta_2,\beta_3\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + \beta_1 q^{2} + \beta_1 q^{3} - q^{4} - \beta_{2} q^{5} - q^{6} + ( - \beta_{2} + \beta_1) q^{7} - \beta_1 q^{8} - q^{9} + \beta_{3} q^{10} + 2 q^{11} - \beta_1 q^{12} + ( - \beta_{2} - 3 \beta_1) q^{13}+ \cdots - 2 q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 4 q - 4 q^{4} - 4 q^{6} - 4 q^{9} + 8 q^{11} - 4 q^{14} + 4 q^{16} + 8 q^{19} - 4 q^{21} + 4 q^{24} - 20 q^{25} + 12 q^{26} + 16 q^{29} - 8 q^{31} - 4 q^{34} - 20 q^{35} + 4 q^{36} + 12 q^{39} - 4 q^{41}+ \cdots - 8 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{4} + 3x^{2} + 1 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( \nu^{3} + 2\nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( \nu^{3} + 4\nu \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( 2\nu^{2} + 3 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_{2} - \beta_1 ) / 2 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( \beta_{3} - 3 ) / 2 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( -\beta_{2} + 2\beta_1 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/510\mathbb{Z}\right)^\times\).

\(n\) \(241\) \(307\) \(341\)
\(\chi(n)\) \(1\) \(-1\) \(1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
409.1
1.61803i
0.618034i
0.618034i
1.61803i
1.00000i 1.00000i −1.00000 2.23607i −1.00000 3.23607i 1.00000i −1.00000 −2.23607
409.2 1.00000i 1.00000i −1.00000 2.23607i −1.00000 1.23607i 1.00000i −1.00000 2.23607
409.3 1.00000i 1.00000i −1.00000 2.23607i −1.00000 1.23607i 1.00000i −1.00000 2.23607
409.4 1.00000i 1.00000i −1.00000 2.23607i −1.00000 3.23607i 1.00000i −1.00000 −2.23607
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
5.b even 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 510.2.d.b 4
3.b odd 2 1 1530.2.d.f 4
4.b odd 2 1 4080.2.m.m 4
5.b even 2 1 inner 510.2.d.b 4
5.c odd 4 1 2550.2.a.bh 2
5.c odd 4 1 2550.2.a.bk 2
15.d odd 2 1 1530.2.d.f 4
15.e even 4 1 7650.2.a.cx 2
15.e even 4 1 7650.2.a.da 2
20.d odd 2 1 4080.2.m.m 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
510.2.d.b 4 1.a even 1 1 trivial
510.2.d.b 4 5.b even 2 1 inner
1530.2.d.f 4 3.b odd 2 1
1530.2.d.f 4 15.d odd 2 1
2550.2.a.bh 2 5.c odd 4 1
2550.2.a.bk 2 5.c odd 4 1
4080.2.m.m 4 4.b odd 2 1
4080.2.m.m 4 20.d odd 2 1
7650.2.a.cx 2 15.e even 4 1
7650.2.a.da 2 15.e even 4 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{7}^{4} + 12T_{7}^{2} + 16 \) acting on \(S_{2}^{\mathrm{new}}(510, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( (T^{2} + 1)^{2} \) Copy content Toggle raw display
$3$ \( (T^{2} + 1)^{2} \) Copy content Toggle raw display
$5$ \( (T^{2} + 5)^{2} \) Copy content Toggle raw display
$7$ \( T^{4} + 12T^{2} + 16 \) Copy content Toggle raw display
$11$ \( (T - 2)^{4} \) Copy content Toggle raw display
$13$ \( T^{4} + 28T^{2} + 16 \) Copy content Toggle raw display
$17$ \( (T^{2} + 1)^{2} \) Copy content Toggle raw display
$19$ \( (T^{2} - 4 T - 16)^{2} \) Copy content Toggle raw display
$23$ \( (T^{2} + 16)^{2} \) Copy content Toggle raw display
$29$ \( (T - 4)^{4} \) Copy content Toggle raw display
$31$ \( (T^{2} + 4 T - 16)^{2} \) Copy content Toggle raw display
$37$ \( (T^{2} + 4)^{2} \) Copy content Toggle raw display
$41$ \( (T^{2} + 2 T - 44)^{2} \) Copy content Toggle raw display
$43$ \( T^{4} + 252 T^{2} + 15376 \) Copy content Toggle raw display
$47$ \( T^{4} + 112T^{2} + 256 \) Copy content Toggle raw display
$53$ \( T^{4} + 168T^{2} + 5776 \) Copy content Toggle raw display
$59$ \( (T^{2} + 10 T - 20)^{2} \) Copy content Toggle raw display
$61$ \( (T^{2} - 20)^{2} \) Copy content Toggle raw display
$67$ \( T^{4} + 140T^{2} + 400 \) Copy content Toggle raw display
$71$ \( (T^{2} - 18 T + 76)^{2} \) Copy content Toggle raw display
$73$ \( T^{4} + 252 T^{2} + 13456 \) Copy content Toggle raw display
$79$ \( (T^{2} - 16 T - 16)^{2} \) Copy content Toggle raw display
$83$ \( T^{4} + 112T^{2} + 256 \) Copy content Toggle raw display
$89$ \( (T^{2} + 16 T + 44)^{2} \) Copy content Toggle raw display
$97$ \( T^{4} + 140T^{2} + 400 \) Copy content Toggle raw display
show more
show less