Properties

Label 546.4.a.k
Level $546$
Weight $4$
Character orbit 546.a
Self dual yes
Analytic conductor $32.215$
Analytic rank $0$
Dimension $2$
CM no
Inner twists $1$

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Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [546,4,Mod(1,546)] 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("546.1"); S:= CuspForms(chi, 4); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(546, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0, 0, 0])) N = Newforms(chi, 4, names="a")
 
Level: \( N \) \(=\) \( 546 = 2 \cdot 3 \cdot 7 \cdot 13 \)
Weight: \( k \) \(=\) \( 4 \)
Character orbit: \([\chi]\) \(=\) 546.a (trivial)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [2,4,6,8,5] 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: yes
Analytic conductor: \(32.2150428631\)
Analytic rank: \(0\)
Dimension: \(2\)
Coefficient field: \(\Q(\sqrt{1401}) \)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{2} - x - 350 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{5}]\)
Coefficient ring index: \( 1 \)
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 \(\beta = \frac{1}{2}(1 + \sqrt{1401})\). We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + 2 q^{2} + 3 q^{3} + 4 q^{4} + ( - \beta + 3) q^{5} + 6 q^{6} - 7 q^{7} + 8 q^{8} + 9 q^{9} + ( - 2 \beta + 6) q^{10} + (\beta - 9) q^{11} + 12 q^{12} - 13 q^{13} - 14 q^{14} + ( - 3 \beta + 9) q^{15}+ \cdots + (9 \beta - 81) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2 q + 4 q^{2} + 6 q^{3} + 8 q^{4} + 5 q^{5} + 12 q^{6} - 14 q^{7} + 16 q^{8} + 18 q^{9} + 10 q^{10} - 17 q^{11} + 24 q^{12} - 26 q^{13} - 28 q^{14} + 15 q^{15} + 32 q^{16} + 135 q^{17} + 36 q^{18} + 171 q^{19}+ \cdots - 153 q^{99}+O(q^{100}) \) 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
19.2150
−18.2150
2.00000 3.00000 4.00000 −16.2150 6.00000 −7.00000 8.00000 9.00000 −32.4299
1.2 2.00000 3.00000 4.00000 21.2150 6.00000 −7.00000 8.00000 9.00000 42.4299
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(2\) \( -1 \)
\(3\) \( -1 \)
\(7\) \( +1 \)
\(13\) \( +1 \)

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 546.4.a.k 2
3.b odd 2 1 1638.4.a.l 2
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
546.4.a.k 2 1.a even 1 1 trivial
1638.4.a.l 2 3.b odd 2 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{5}^{2} - 5T_{5} - 344 \) acting on \(S_{4}^{\mathrm{new}}(\Gamma_0(546))\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( (T - 2)^{2} \) Copy content Toggle raw display
$3$ \( (T - 3)^{2} \) Copy content Toggle raw display
$5$ \( T^{2} - 5T - 344 \) Copy content Toggle raw display
$7$ \( (T + 7)^{2} \) Copy content Toggle raw display
$11$ \( T^{2} + 17T - 278 \) Copy content Toggle raw display
$13$ \( (T + 13)^{2} \) Copy content Toggle raw display
$17$ \( T^{2} - 135T + 4206 \) Copy content Toggle raw display
$19$ \( T^{2} - 171T + 6960 \) Copy content Toggle raw display
$23$ \( T^{2} - 293T + 21112 \) Copy content Toggle raw display
$29$ \( T^{2} + 193T + 8962 \) Copy content Toggle raw display
$31$ \( T^{2} - 128T - 18320 \) Copy content Toggle raw display
$37$ \( T^{2} + 471T + 38298 \) Copy content Toggle raw display
$41$ \( T^{2} - 216T - 10752 \) Copy content Toggle raw display
$43$ \( T^{2} - 293T - 6908 \) Copy content Toggle raw display
$47$ \( T^{2} + 398T + 4576 \) Copy content Toggle raw display
$53$ \( T^{2} - 228T - 9420 \) Copy content Toggle raw display
$59$ \( T^{2} + 46T - 617312 \) Copy content Toggle raw display
$61$ \( T^{2} - 1043 T + 268810 \) Copy content Toggle raw display
$67$ \( T^{2} + 82T - 739448 \) Copy content Toggle raw display
$71$ \( T^{2} + 866T - 49280 \) Copy content Toggle raw display
$73$ \( T^{2} + 389T - 391226 \) Copy content Toggle raw display
$79$ \( T^{2} + 878T + 23200 \) Copy content Toggle raw display
$83$ \( T^{2} - 192 T - 1251684 \) Copy content Toggle raw display
$89$ \( T^{2} + 630T + 64200 \) Copy content Toggle raw display
$97$ \( T^{2} + 404T - 48860 \) Copy content Toggle raw display
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