Properties

Label 2450.4.a.br
Level $2450$
Weight $4$
Character orbit 2450.a
Self dual yes
Analytic conductor $144.555$
Analytic rank $1$
Dimension $2$
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] = [2450,4,Mod(1,2450)] mf = mfinit([N,k,chi],0) lf = mfeigenbasis(mf)
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(2450, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0, 0])) N = Newforms(chi, 4, names="a")
 
Copy content magma://Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code chi := DirichletCharacter("2450.1"); S:= CuspForms(chi, 4); N := Newforms(S);
 
Level: \( N \) \(=\) \( 2450 = 2 \cdot 5^{2} \cdot 7^{2} \)
Weight: \( k \) \(=\) \( 4 \)
Character orbit: \([\chi]\) \(=\) 2450.a (trivial)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [2,-4,0,8,0,0,0,-16,2,0,-30] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(11)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: yes
Analytic conductor: \(144.554679514\)
Analytic rank: \(1\)
Dimension: \(2\)
Coefficient field: \(\Q(\sqrt{7}) \)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{2} - 7 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2, a_3]\)
Coefficient ring index: \( 2 \)
Twist minimal: yes
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 \(\beta = 2\sqrt{7}\). We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q - 2 q^{2} + \beta q^{3} + 4 q^{4} - 2 \beta q^{6} - 8 q^{8} + q^{9} - 15 q^{11} + 4 \beta q^{12} + 3 \beta q^{13} + 16 q^{16} - 6 \beta q^{17} - 2 q^{18} + 16 \beta q^{19} + 30 q^{22} + 57 q^{23} - 8 \beta q^{24} + \cdots - 15 q^{99} +O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2 q - 4 q^{2} + 8 q^{4} - 16 q^{8} + 2 q^{9} - 30 q^{11} + 32 q^{16} - 4 q^{18} + 60 q^{22} + 114 q^{23} - 142 q^{29} - 64 q^{32} + 8 q^{36} - 194 q^{37} + 168 q^{39} + 198 q^{43} - 120 q^{44} - 228 q^{46}+ \cdots - 30 q^{99}+O(q^{100}) \) 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
−2.64575
2.64575
−2.00000 −5.29150 4.00000 0 10.5830 0 −8.00000 1.00000 0
1.2 −2.00000 5.29150 4.00000 0 −10.5830 0 −8.00000 1.00000 0
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(2\) \( +1 \)
\(5\) \( +1 \)
\(7\) \( -1 \)

Inner twists

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

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 2450.4.a.br 2
5.b even 2 1 2450.4.a.bw yes 2
7.b odd 2 1 inner 2450.4.a.br 2
35.c odd 2 1 2450.4.a.bw yes 2
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
2450.4.a.br 2 1.a even 1 1 trivial
2450.4.a.br 2 7.b odd 2 1 inner
2450.4.a.bw yes 2 5.b even 2 1
2450.4.a.bw yes 2 35.c odd 2 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{4}^{\mathrm{new}}(\Gamma_0(2450))\):

\( T_{3}^{2} - 28 \) Copy content Toggle raw display
\( T_{11} + 15 \) Copy content Toggle raw display
\( T_{19}^{2} - 7168 \) Copy content Toggle raw display
\( T_{23} - 57 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( (T + 2)^{2} \) Copy content Toggle raw display
$3$ \( T^{2} - 28 \) Copy content Toggle raw display
$5$ \( T^{2} \) Copy content Toggle raw display
$7$ \( T^{2} \) Copy content Toggle raw display
$11$ \( (T + 15)^{2} \) Copy content Toggle raw display
$13$ \( T^{2} - 252 \) Copy content Toggle raw display
$17$ \( T^{2} - 1008 \) Copy content Toggle raw display
$19$ \( T^{2} - 7168 \) Copy content Toggle raw display
$23$ \( (T - 57)^{2} \) Copy content Toggle raw display
$29$ \( (T + 71)^{2} \) Copy content Toggle raw display
$31$ \( T^{2} - 8092 \) Copy content Toggle raw display
$37$ \( (T + 97)^{2} \) Copy content Toggle raw display
$41$ \( T^{2} - 38332 \) Copy content Toggle raw display
$43$ \( (T - 99)^{2} \) Copy content Toggle raw display
$47$ \( T^{2} - 107632 \) Copy content Toggle raw display
$53$ \( (T - 278)^{2} \) Copy content Toggle raw display
$59$ \( T^{2} - 10108 \) Copy content Toggle raw display
$61$ \( T^{2} - 47068 \) Copy content Toggle raw display
$67$ \( (T - 85)^{2} \) Copy content Toggle raw display
$71$ \( (T - 41)^{2} \) Copy content Toggle raw display
$73$ \( T^{2} - 556668 \) Copy content Toggle raw display
$79$ \( (T + 785)^{2} \) Copy content Toggle raw display
$83$ \( T^{2} - 1468348 \) Copy content Toggle raw display
$89$ \( T^{2} - 1064700 \) Copy content Toggle raw display
$97$ \( T^{2} - 34300 \) Copy content Toggle raw display
show more
show less