Properties

Label 289.4.b.a
Level $289$
Weight $4$
Character orbit 289.b
Analytic conductor $17.052$
Analytic rank $0$
Dimension $2$
Inner twists $2$

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Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [289,4,Mod(288,289)] 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("289.288"); S:= CuspForms(chi, 4); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(289, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([1])) N = Newforms(chi, 4, names="a")
 
Level: \( N \) \(=\) \( 289 = 17^{2} \)
Weight: \( k \) \(=\) \( 4 \)
Character orbit: \([\chi]\) \(=\) 289.b (of order \(2\), degree \(1\), not minimal)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [2,6] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(2)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: no
Analytic conductor: \(17.0515519917\)
Analytic rank: \(0\)
Dimension: \(2\)
Coefficient field: \(\Q(\sqrt{-1}) \)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{2} + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{5}]\)
Coefficient ring index: \( 2 \)
Twist minimal: no (minimal twist has level 17)
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 \(\beta = 2i\). We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + 3 q^{2} - 4 \beta q^{3} + q^{4} + 3 \beta q^{5} - 12 \beta q^{6} + 14 \beta q^{7} - 21 q^{8} - 37 q^{9} + 9 \beta q^{10} + 12 \beta q^{11} - 4 \beta q^{12} - 58 q^{13} + 42 \beta q^{14} + 48 q^{15} + \cdots - 444 \beta q^{99} +O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2 q + 6 q^{2} + 2 q^{4} - 42 q^{8} - 74 q^{9} - 116 q^{13} + 96 q^{15} - 142 q^{16} - 222 q^{18} - 232 q^{19} + 448 q^{21} + 178 q^{25} - 348 q^{26} + 288 q^{30} - 90 q^{32} + 384 q^{33} - 336 q^{35} - 74 q^{36}+ \cdots - 2646 q^{98}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/289\mathbb{Z}\right)^\times\).

\(n\) \(3\)
\(\chi(n)\) \(-1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
288.1
1.00000i
1.00000i
3.00000 8.00000i 1.00000 6.00000i 24.0000i 28.0000i −21.0000 −37.0000 18.0000i
288.2 3.00000 8.00000i 1.00000 6.00000i 24.0000i 28.0000i −21.0000 −37.0000 18.0000i
\(n\): e.g. 2-40 or 80-90
Significant digits:
Format:

Inner twists

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

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 289.4.b.a 2
17.b even 2 1 inner 289.4.b.a 2
17.c even 4 1 17.4.a.a 1
17.c even 4 1 289.4.a.a 1
51.f odd 4 1 153.4.a.d 1
68.f odd 4 1 272.4.a.d 1
85.f odd 4 1 425.4.b.c 2
85.i odd 4 1 425.4.b.c 2
85.j even 4 1 425.4.a.d 1
119.f odd 4 1 833.4.a.a 1
136.i even 4 1 1088.4.a.l 1
136.j odd 4 1 1088.4.a.a 1
187.f odd 4 1 2057.4.a.d 1
204.l even 4 1 2448.4.a.f 1
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
17.4.a.a 1 17.c even 4 1
153.4.a.d 1 51.f odd 4 1
272.4.a.d 1 68.f odd 4 1
289.4.a.a 1 17.c even 4 1
289.4.b.a 2 1.a even 1 1 trivial
289.4.b.a 2 17.b even 2 1 inner
425.4.a.d 1 85.j even 4 1
425.4.b.c 2 85.f odd 4 1
425.4.b.c 2 85.i odd 4 1
833.4.a.a 1 119.f odd 4 1
1088.4.a.a 1 136.j odd 4 1
1088.4.a.l 1 136.i even 4 1
2057.4.a.d 1 187.f odd 4 1
2448.4.a.f 1 204.l even 4 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{2} - 3 \) acting on \(S_{4}^{\mathrm{new}}(289, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( (T - 3)^{2} \) Copy content Toggle raw display
$3$ \( T^{2} + 64 \) Copy content Toggle raw display
$5$ \( T^{2} + 36 \) Copy content Toggle raw display
$7$ \( T^{2} + 784 \) Copy content Toggle raw display
$11$ \( T^{2} + 576 \) Copy content Toggle raw display
$13$ \( (T + 58)^{2} \) Copy content Toggle raw display
$17$ \( T^{2} \) Copy content Toggle raw display
$19$ \( (T + 116)^{2} \) Copy content Toggle raw display
$23$ \( T^{2} + 3600 \) Copy content Toggle raw display
$29$ \( T^{2} + 900 \) Copy content Toggle raw display
$31$ \( T^{2} + 29584 \) Copy content Toggle raw display
$37$ \( T^{2} + 3364 \) Copy content Toggle raw display
$41$ \( T^{2} + 116964 \) Copy content Toggle raw display
$43$ \( (T - 148)^{2} \) Copy content Toggle raw display
$47$ \( (T - 288)^{2} \) Copy content Toggle raw display
$53$ \( (T + 318)^{2} \) Copy content Toggle raw display
$59$ \( (T + 252)^{2} \) Copy content Toggle raw display
$61$ \( T^{2} + 12100 \) Copy content Toggle raw display
$67$ \( (T + 484)^{2} \) Copy content Toggle raw display
$71$ \( T^{2} + 501264 \) Copy content Toggle raw display
$73$ \( T^{2} + 131044 \) Copy content Toggle raw display
$79$ \( T^{2} + 234256 \) Copy content Toggle raw display
$83$ \( (T + 756)^{2} \) Copy content Toggle raw display
$89$ \( (T + 774)^{2} \) Copy content Toggle raw display
$97$ \( T^{2} + 145924 \) Copy content Toggle raw display
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