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Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [17,4,Mod(1,17)] 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("17.1"); S:= CuspForms(chi, 4); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(17, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0])) N = Newforms(chi, 4, names="a")
 
Level: \( N \) \(=\) \( 17 \)
Weight: \( k \) \(=\) \( 4 \)
Character orbit: \([\chi]\) \(=\) 17.a (trivial)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [3] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(1)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: yes
Analytic conductor: \(1.00303247010\)
Analytic rank: \(0\)
Dimension: \(3\)
Coefficient field: 3.3.2636.1
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{3} - 14x - 4 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2, a_3]\)
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 a basis \(1,\beta_1,\beta_2\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + ( - \beta_{2} + \beta_1) q^{2} + (2 \beta_{2} - \beta_1 + 2) q^{3} + ( - \beta_{2} - 3 \beta_1 + 8) q^{4} + (2 \beta_{2} - 2) q^{5} + (2 \beta_{2} + 6 \beta_1 - 24) q^{6} + ( - 4 \beta_{2} - \beta_1 + 6) q^{7}+ \cdots + ( - 206 \beta_{2} + 281 \beta_1 - 1042) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 3 q + q^{2} + 4 q^{3} + 25 q^{4} - 8 q^{5} - 74 q^{6} + 22 q^{7} - 39 q^{8} + 59 q^{9} - 56 q^{10} - 28 q^{11} + 22 q^{12} + 30 q^{13} + 92 q^{14} + 108 q^{15} + 137 q^{16} - 51 q^{17} - 103 q^{18} + 80 q^{19}+ \cdots - 2920 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{3} - 14x - 4 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( \nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( \nu^{2} - 10 ) / 2 \) Copy content Toggle raw display
\(\nu\)\(=\) \( \beta_1 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( 2\beta_{2} + 10 \) 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
−3.58966
3.87707
−0.287410
−5.03251 8.47535 17.3261 0.885690 −42.6523 3.81828 −46.9339 44.8316 −4.45724
1.2 1.36122 3.15463 −6.14708 3.03171 4.29415 −7.94049 −19.2573 −17.0483 4.12682
1.3 4.67129 −7.62999 13.8209 −11.9174 −35.6419 26.1222 27.1912 31.2167 −55.6696
\(n\): e.g. 2-40 or 80-90
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(17\) \( +1 \)

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 17.4.a.b 3
3.b odd 2 1 153.4.a.g 3
4.b odd 2 1 272.4.a.h 3
5.b even 2 1 425.4.a.g 3
5.c odd 4 2 425.4.b.f 6
7.b odd 2 1 833.4.a.d 3
8.b even 2 1 1088.4.a.v 3
8.d odd 2 1 1088.4.a.x 3
11.b odd 2 1 2057.4.a.e 3
12.b even 2 1 2448.4.a.bi 3
17.b even 2 1 289.4.a.b 3
17.c even 4 2 289.4.b.b 6
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
17.4.a.b 3 1.a even 1 1 trivial
153.4.a.g 3 3.b odd 2 1
272.4.a.h 3 4.b odd 2 1
289.4.a.b 3 17.b even 2 1
289.4.b.b 6 17.c even 4 2
425.4.a.g 3 5.b even 2 1
425.4.b.f 6 5.c odd 4 2
833.4.a.d 3 7.b odd 2 1
1088.4.a.v 3 8.b even 2 1
1088.4.a.x 3 8.d odd 2 1
2057.4.a.e 3 11.b odd 2 1
2448.4.a.bi 3 12.b even 2 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{2}^{3} - T_{2}^{2} - 24T_{2} + 32 \) acting on \(S_{4}^{\mathrm{new}}(\Gamma_0(17))\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{3} - T^{2} + \cdots + 32 \) Copy content Toggle raw display
$3$ \( T^{3} - 4 T^{2} + \cdots + 204 \) Copy content Toggle raw display
$5$ \( T^{3} + 8 T^{2} + \cdots + 32 \) Copy content Toggle raw display
$7$ \( T^{3} - 22 T^{2} + \cdots + 792 \) Copy content Toggle raw display
$11$ \( T^{3} + 28 T^{2} + \cdots - 4692 \) Copy content Toggle raw display
$13$ \( T^{3} - 30 T^{2} + \cdots - 9392 \) Copy content Toggle raw display
$17$ \( (T + 17)^{3} \) Copy content Toggle raw display
$19$ \( T^{3} - 80 T^{2} + \cdots + 340128 \) Copy content Toggle raw display
$23$ \( T^{3} - 142 T^{2} + \cdots + 1600544 \) Copy content Toggle raw display
$29$ \( T^{3} + 456 T^{2} + \cdots + 1518624 \) Copy content Toggle raw display
$31$ \( T^{3} - 230 T^{2} + \cdots - 81608 \) Copy content Toggle raw display
$37$ \( T^{3} - 356 T^{2} + \cdots + 6176752 \) Copy content Toggle raw display
$41$ \( T^{3} + 294 T^{2} + \cdots - 1638744 \) Copy content Toggle raw display
$43$ \( T^{3} - 556 T^{2} + \cdots + 7270272 \) Copy content Toggle raw display
$47$ \( T^{3} - 640 T^{2} + \cdots - 1671168 \) Copy content Toggle raw display
$53$ \( T^{3} - 302 T^{2} + \cdots + 18162072 \) Copy content Toggle raw display
$59$ \( T^{3} - 636 T^{2} + \cdots + 49419072 \) Copy content Toggle raw display
$61$ \( T^{3} + 84 T^{2} + \cdots - 6792784 \) Copy content Toggle raw display
$67$ \( T^{3} - 1008 T^{2} + \cdots - 765952 \) Copy content Toggle raw display
$71$ \( T^{3} + 402 T^{2} + \cdots - 274866016 \) Copy content Toggle raw display
$73$ \( T^{3} - 838 T^{2} + \cdots - 19957512 \) Copy content Toggle raw display
$79$ \( T^{3} + 594 T^{2} + \cdots - 742135824 \) Copy content Toggle raw display
$83$ \( T^{3} + 2396 T^{2} + \cdots + 142080704 \) Copy content Toggle raw display
$89$ \( T^{3} + 170 T^{2} + \cdots - 446571376 \) Copy content Toggle raw display
$97$ \( T^{3} + 270 T^{2} + \cdots - 206623000 \) Copy content Toggle raw display
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