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Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [7935,2,Mod(1,7935)] 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("7935.1"); S:= CuspForms(chi, 2); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(7935, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0, 0, 0])) N = Newforms(chi, 2, names="a")
 
Level: \( N \) \(=\) \( 7935 = 3 \cdot 5 \cdot 23^{2} \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 7935.a (trivial)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [5,0,5,8,-5,0,-3] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(7)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: yes
Analytic conductor: \(63.3612940039\)
Analytic rank: \(1\)
Dimension: \(5\)
Coefficient field: 5.5.3370660.1
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{5} - 9x^{3} - 2x^{2} + 16x + 6 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2]\)
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 a basis \(1,\beta_1,\beta_2,\beta_3,\beta_4\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q - \beta_1 q^{2} + q^{3} + (\beta_{2} + 2) q^{4} - q^{5} - \beta_1 q^{6} + ( - \beta_{2} - 1) q^{7} + ( - \beta_{3} - \beta_1 - 1) q^{8} + q^{9} + \beta_1 q^{10} + ( - \beta_{3} - 1) q^{11} + (\beta_{2} + 2) q^{12}+ \cdots + ( - \beta_{3} - 1) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 5 q + 5 q^{3} + 8 q^{4} - 5 q^{5} - 3 q^{7} - 6 q^{8} + 5 q^{9} - 6 q^{11} + 8 q^{12} - 6 q^{13} + 6 q^{14} - 5 q^{15} + 10 q^{16} - 7 q^{17} + 4 q^{19} - 8 q^{20} - 3 q^{21} + 8 q^{22} - 6 q^{24} + 5 q^{25}+ \cdots - 6 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{5} - 9x^{3} - 2x^{2} + 16x + 6 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( \nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( \nu^{2} - 4 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( \nu^{3} - 5\nu - 1 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( \nu^{4} - \nu^{3} - 7\nu^{2} + 4\nu + 7 \) Copy content Toggle raw display
\(\nu\)\(=\) \( \beta_1 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( \beta_{2} + 4 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( \beta_{3} + 5\beta _1 + 1 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( \beta_{4} + \beta_{3} + 7\beta_{2} + \beta _1 + 22 \) 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
2.68673
1.60380
−0.388575
−1.47890
−2.42305
−2.68673 1.00000 5.21850 −1.00000 −2.68673 −4.21850 −8.64724 1.00000 2.68673
1.2 −1.60380 1.00000 0.572179 −1.00000 −1.60380 0.427821 2.28994 1.00000 1.60380
1.3 0.388575 1.00000 −1.84901 −1.00000 0.388575 2.84901 −1.49563 1.00000 −0.388575
1.4 1.47890 1.00000 0.187154 −1.00000 1.47890 0.812846 −2.68102 1.00000 −1.47890
1.5 2.42305 1.00000 3.87117 −1.00000 2.42305 −2.87117 4.53395 1.00000 −2.42305
\(n\): e.g. 2-40 or 80-90
Embeddings: e.g. 1-3 or 1.5
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(3\) \( -1 \)
\(5\) \( +1 \)
\(23\) \( -1 \)

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 7935.2.a.bb 5
23.b odd 2 1 7935.2.a.bc yes 5
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
7935.2.a.bb 5 1.a even 1 1 trivial
7935.2.a.bc yes 5 23.b odd 2 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(\Gamma_0(7935))\):

\( T_{2}^{5} - 9T_{2}^{3} + 2T_{2}^{2} + 16T_{2} - 6 \) Copy content Toggle raw display
\( T_{7}^{5} + 3T_{7}^{4} - 13T_{7}^{3} - 23T_{7}^{2} + 40T_{7} - 12 \) Copy content Toggle raw display
\( T_{11}^{5} + 6T_{11}^{4} - 20T_{11}^{3} - 118T_{11}^{2} + 80T_{11} + 384 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{5} - 9 T^{3} + \cdots - 6 \) Copy content Toggle raw display
$3$ \( (T - 1)^{5} \) Copy content Toggle raw display
$5$ \( (T + 1)^{5} \) Copy content Toggle raw display
$7$ \( T^{5} + 3 T^{4} + \cdots - 12 \) Copy content Toggle raw display
$11$ \( T^{5} + 6 T^{4} + \cdots + 384 \) Copy content Toggle raw display
$13$ \( T^{5} + 6 T^{4} + \cdots - 216 \) Copy content Toggle raw display
$17$ \( T^{5} + 7 T^{4} + \cdots - 180 \) Copy content Toggle raw display
$19$ \( T^{5} - 4 T^{4} + \cdots - 2472 \) Copy content Toggle raw display
$23$ \( T^{5} \) Copy content Toggle raw display
$29$ \( T^{5} - 9 T^{4} + \cdots - 108 \) Copy content Toggle raw display
$31$ \( T^{5} + 7 T^{4} + \cdots + 64 \) Copy content Toggle raw display
$37$ \( T^{5} + T^{4} + \cdots + 6000 \) Copy content Toggle raw display
$41$ \( T^{5} + 7 T^{4} + \cdots - 180 \) Copy content Toggle raw display
$43$ \( T^{5} + 20 T^{4} + \cdots - 6576 \) Copy content Toggle raw display
$47$ \( T^{5} - 84 T^{3} + \cdots + 2592 \) Copy content Toggle raw display
$53$ \( T^{5} - 3 T^{4} + \cdots - 708 \) Copy content Toggle raw display
$59$ \( T^{5} - T^{4} + \cdots - 47952 \) Copy content Toggle raw display
$61$ \( T^{5} + 4 T^{4} + \cdots - 96 \) Copy content Toggle raw display
$67$ \( T^{5} - 5 T^{4} + \cdots + 324 \) Copy content Toggle raw display
$71$ \( T^{5} - T^{4} + \cdots - 6288 \) Copy content Toggle raw display
$73$ \( T^{5} + 6 T^{4} + \cdots - 2840 \) Copy content Toggle raw display
$79$ \( T^{5} - 388 T^{3} + \cdots - 241152 \) Copy content Toggle raw display
$83$ \( T^{5} + 41 T^{4} + \cdots - 258624 \) Copy content Toggle raw display
$89$ \( T^{5} + 18 T^{4} + \cdots + 1440 \) Copy content Toggle raw display
$97$ \( T^{5} + 26 T^{4} + \cdots + 192 \) Copy content Toggle raw display
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