Properties

Label 3750.2.c.d
Level $3750$
Weight $2$
Character orbit 3750.c
Analytic conductor $29.944$
Analytic rank $0$
Dimension $4$
Inner twists $2$

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Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [3750,2,Mod(1249,3750)] 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("3750.1249"); S:= CuspForms(chi, 2); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(3750, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0, 1])) N = Newforms(chi, 2, names="a")
 
Level: \( N \) \(=\) \( 3750 = 2 \cdot 3 \cdot 5^{4} \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 3750.c (of order \(2\), degree \(1\), not minimal)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [4,0,0,-4,0,4,0,0,-4,0,8,0,0,-2] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(14)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: no
Analytic conductor: \(29.9439007580\)
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: \(\Z[a_1, \ldots, a_{7}]\)
Coefficient ring index: \( 1 \)
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.

\(f(q)\) \(=\) \( q - \beta_{3} q^{2} + \beta_{3} q^{3} - q^{4} + q^{6} + \beta_1 q^{7} + \beta_{3} q^{8} - q^{9} + 2 q^{11} - \beta_{3} q^{12} + (\beta_{3} - \beta_1) q^{13} + \beta_{2} q^{14} + q^{16} + ( - 4 \beta_{3} - 2 \beta_1) q^{17}+ \cdots - 2 q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 4 q - 4 q^{4} + 4 q^{6} - 4 q^{9} + 8 q^{11} - 2 q^{14} + 4 q^{16} - 10 q^{19} + 2 q^{21} - 4 q^{24} + 6 q^{26} - 22 q^{31} - 12 q^{34} + 4 q^{36} - 6 q^{39} + 8 q^{41} - 8 q^{44} - 4 q^{46} + 22 q^{49}+ \cdots - 8 q^{99}+O(q^{100}) \) 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

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

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/3750\mathbb{Z}\right)^\times\).

\(n\) \(2501\) \(3127\)
\(\chi(n)\) \(1\) \(-1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
1249.1
1.61803i
0.618034i
0.618034i
1.61803i
1.00000i 1.00000i −1.00000 0 1.00000 1.61803i 1.00000i −1.00000 0
1249.2 1.00000i 1.00000i −1.00000 0 1.00000 0.618034i 1.00000i −1.00000 0
1249.3 1.00000i 1.00000i −1.00000 0 1.00000 0.618034i 1.00000i −1.00000 0
1249.4 1.00000i 1.00000i −1.00000 0 1.00000 1.61803i 1.00000i −1.00000 0
\(n\): e.g. 2-40 or 80-90
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 3750.2.c.d 4
5.b even 2 1 inner 3750.2.c.d 4
5.c odd 4 1 3750.2.a.a 2
5.c odd 4 1 3750.2.a.h yes 2
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
3750.2.a.a 2 5.c odd 4 1
3750.2.a.h yes 2 5.c odd 4 1
3750.2.c.d 4 1.a even 1 1 trivial
3750.2.c.d 4 5.b even 2 1 inner

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{7}^{4} + 3T_{7}^{2} + 1 \) acting on \(S_{2}^{\mathrm{new}}(3750, [\chi])\). 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
$5$ \( T^{4} \) Copy content Toggle raw display
$7$ \( T^{4} + 3T^{2} + 1 \) Copy content Toggle raw display
$11$ \( (T - 2)^{4} \) Copy content Toggle raw display
$13$ \( T^{4} + 7T^{2} + 1 \) Copy content Toggle raw display
$17$ \( T^{4} + 28T^{2} + 16 \) Copy content Toggle raw display
$19$ \( (T^{2} + 5 T - 5)^{2} \) Copy content Toggle raw display
$23$ \( T^{4} + 12T^{2} + 16 \) Copy content Toggle raw display
$29$ \( (T^{2} - 20)^{2} \) Copy content Toggle raw display
$31$ \( (T^{2} + 11 T + 19)^{2} \) Copy content Toggle raw display
$37$ \( T^{4} + 63T^{2} + 961 \) Copy content Toggle raw display
$41$ \( (T^{2} - 4 T - 16)^{2} \) Copy content Toggle raw display
$43$ \( T^{4} + 147T^{2} + 121 \) Copy content Toggle raw display
$47$ \( (T^{2} + 4)^{2} \) Copy content Toggle raw display
$53$ \( T^{4} + 112T^{2} + 256 \) Copy content Toggle raw display
$59$ \( (T^{2} + 20 T + 80)^{2} \) Copy content Toggle raw display
$61$ \( (T^{2} - 9 T + 9)^{2} \) Copy content Toggle raw display
$67$ \( T^{4} + 303 T^{2} + 22801 \) Copy content Toggle raw display
$71$ \( (T^{2} + 16 T + 44)^{2} \) Copy content Toggle raw display
$73$ \( T^{4} + 27T^{2} + 81 \) Copy content Toggle raw display
$79$ \( (T^{2} - 15 T - 5)^{2} \) Copy content Toggle raw display
$83$ \( T^{4} + 172T^{2} + 5776 \) Copy content Toggle raw display
$89$ \( (T^{2} - 180)^{2} \) Copy content Toggle raw display
$97$ \( T^{4} + 83T^{2} + 361 \) Copy content Toggle raw display
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