Properties

Label 1617.4.a.m
Level $1617$
Weight $4$
Character orbit 1617.a
Self dual yes
Analytic conductor $95.406$
Analytic rank $0$
Dimension $2$
CM no
Inner twists $1$

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Show commands: Magma / Pari/GP / SageMath

Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [1617,4,Mod(1,1617)] 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("1617.1"); S:= CuspForms(chi, 4); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(1617, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0, 0, 0])) N = Newforms(chi, 4, names="a")
 
Level: \( N \) \(=\) \( 1617 = 3 \cdot 7^{2} \cdot 11 \)
Weight: \( k \) \(=\) \( 4 \)
Character orbit: \([\chi]\) \(=\) 1617.a (trivial)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [2,3,6,-3,-1] 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: \(95.4060884793\)
Analytic rank: \(0\)
Dimension: \(2\)
Coefficient field: \(\Q(\sqrt{17}) \)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{2} - x - 4 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 231)
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 \(\beta = \frac{1}{2}(1 + \sqrt{17})\). We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + (\beta + 1) q^{2} + 3 q^{3} + (3 \beta - 3) q^{4} + (3 \beta - 2) q^{5} + (3 \beta + 3) q^{6} + ( - 5 \beta + 1) q^{8} + 9 q^{9} + (4 \beta + 10) q^{10} - 11 q^{11} + (9 \beta - 9) q^{12} + (13 \beta + 6) q^{13}+ \cdots - 99 q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2 q + 3 q^{2} + 6 q^{3} - 3 q^{4} - q^{5} + 9 q^{6} - 3 q^{8} + 18 q^{9} + 24 q^{10} - 22 q^{11} - 9 q^{12} + 25 q^{13} - 3 q^{15} - 23 q^{16} + 112 q^{17} + 27 q^{18} + 71 q^{19} + 78 q^{20} - 33 q^{22}+ \cdots - 198 q^{99}+O(q^{100}) \) 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
−1.56155
2.56155
−0.561553 3.00000 −7.68466 −6.68466 −1.68466 0 8.80776 9.00000 3.75379
1.2 3.56155 3.00000 4.68466 5.68466 10.6847 0 −11.8078 9.00000 20.2462
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(3\) \( -1 \)
\(7\) \( -1 \)
\(11\) \( +1 \)

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 1617.4.a.m 2
7.b odd 2 1 231.4.a.h 2
21.c even 2 1 693.4.a.g 2
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
231.4.a.h 2 7.b odd 2 1
693.4.a.g 2 21.c even 2 1
1617.4.a.m 2 1.a even 1 1 trivial

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{4}^{\mathrm{new}}(\Gamma_0(1617))\):

\( T_{2}^{2} - 3T_{2} - 2 \) Copy content Toggle raw display
\( T_{5}^{2} + T_{5} - 38 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{2} - 3T - 2 \) Copy content Toggle raw display
$3$ \( (T - 3)^{2} \) Copy content Toggle raw display
$5$ \( T^{2} + T - 38 \) Copy content Toggle raw display
$7$ \( T^{2} \) Copy content Toggle raw display
$11$ \( (T + 11)^{2} \) Copy content Toggle raw display
$13$ \( T^{2} - 25T - 562 \) Copy content Toggle raw display
$17$ \( T^{2} - 112T + 3068 \) Copy content Toggle raw display
$19$ \( T^{2} - 71T - 988 \) Copy content Toggle raw display
$23$ \( T^{2} + 56T + 512 \) Copy content Toggle raw display
$29$ \( T^{2} + 11T - 17926 \) Copy content Toggle raw display
$31$ \( T^{2} - 310T + 21152 \) Copy content Toggle raw display
$37$ \( T^{2} + 65T - 47602 \) Copy content Toggle raw display
$41$ \( T^{2} + 42T - 30992 \) Copy content Toggle raw display
$43$ \( T^{2} + 32T - 60944 \) Copy content Toggle raw display
$47$ \( T^{2} + 101T - 110368 \) Copy content Toggle raw display
$53$ \( T^{2} - 166T - 7408 \) Copy content Toggle raw display
$59$ \( T^{2} - 11T - 11908 \) Copy content Toggle raw display
$61$ \( T^{2} - 436T + 20324 \) Copy content Toggle raw display
$67$ \( T^{2} + 127T - 34324 \) Copy content Toggle raw display
$71$ \( T^{2} - 936T + 205696 \) Copy content Toggle raw display
$73$ \( T^{2} - 327T - 400346 \) Copy content Toggle raw display
$79$ \( T^{2} + 228T - 52352 \) Copy content Toggle raw display
$83$ \( T^{2} - 262T + 13336 \) Copy content Toggle raw display
$89$ \( T^{2} + 44T - 197804 \) Copy content Toggle raw display
$97$ \( T^{2} - 2266 T + 1282312 \) Copy content Toggle raw display
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