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Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [115,4,Mod(1,115)] 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("115.1"); S:= CuspForms(chi, 4); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(115, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0, 0])) N = Newforms(chi, 4, names="a")
 
Level: \( N \) \(=\) \( 115 = 5 \cdot 23 \)
Weight: \( k \) \(=\) \( 4 \)
Character orbit: \([\chi]\) \(=\) 115.a (trivial)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [5,-5] 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: yes
Analytic conductor: \(6.78521965066\)
Analytic rank: \(1\)
Dimension: \(5\)
Coefficient field: \(\mathbb{Q}[x]/(x^{5} - \cdots)\)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{5} - 34x^{3} - 9x^{2} + 260x + 60 \) 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 \(1,\beta_1,\beta_2,\beta_3,\beta_4\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + (\beta_1 - 1) q^{2} + ( - \beta_{4} - \beta_{3} - \beta_{2} - 1) q^{3} + (\beta_{4} - \beta_{3} - \beta_1 + 6) q^{4} - 5 q^{5} + (3 \beta_{4} + 7 \beta_{3} + 3 \beta_{2} + \cdots - 7) q^{6} + ( - \beta_{4} + 3 \beta_{3} + 3 \beta_{2} + \cdots - 2) q^{7}+ \cdots + (5 \beta_{4} + 301 \beta_{3} + \cdots + 40) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 5 q - 5 q^{2} - 6 q^{3} + 33 q^{4} - 25 q^{5} - 36 q^{6} - 15 q^{7} - 102 q^{8} + 79 q^{9} + 25 q^{10} - 153 q^{11} - 30 q^{12} + 28 q^{13} + 69 q^{14} + 30 q^{15} + 145 q^{16} - 341 q^{17} - 409 q^{18}+ \cdots - 91 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{5} - 34x^{3} - 9x^{2} + 260x + 60 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( \nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( \nu^{4} + 14\nu^{3} - 30\nu^{2} - 237\nu + 78 ) / 64 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( -\nu^{4} + 2\nu^{3} + 14\nu^{2} - 19\nu + 50 ) / 16 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( -\nu^{4} + 2\nu^{3} + 30\nu^{2} - 35\nu - 158 ) / 16 \) Copy content Toggle raw display
\(\nu\)\(=\) \( \beta_1 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( \beta_{4} - \beta_{3} + \beta _1 + 13 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( \beta_{4} + 4\beta_{2} + 17\beta _1 + 5 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( 16\beta_{4} - 30\beta_{3} + 8\beta_{2} + 29\beta _1 + 242 \) 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
−4.34884
−3.67392
−0.230529
3.26689
4.98640
−5.34884 8.28008 20.6101 −5.00000 −44.2888 −30.9947 −67.4492 41.5597 26.7442
1.2 −4.67392 −9.09294 13.8456 −5.00000 42.4997 6.08885 −27.3217 55.6816 23.3696
1.3 −1.23053 2.78435 −6.48580 −5.00000 −3.42623 24.1991 17.8252 −19.2474 6.15265
1.4 2.26689 −0.577397 −2.86119 −5.00000 −1.30890 −10.7178 −24.6212 −26.6666 −11.3345
1.5 3.98640 −7.39409 7.89136 −5.00000 −29.4758 −3.57544 −0.433099 27.6726 −19.9320
\(n\): e.g. 2-40 or 80-90
Embeddings: e.g. 1-3 or 1.5
Significant digits:
Format:

Atkin-Lehner signs

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

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 115.4.a.d 5
3.b odd 2 1 1035.4.a.m 5
4.b odd 2 1 1840.4.a.p 5
5.b even 2 1 575.4.a.k 5
5.c odd 4 2 575.4.b.h 10
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
115.4.a.d 5 1.a even 1 1 trivial
575.4.a.k 5 5.b even 2 1
575.4.b.h 10 5.c odd 4 2
1035.4.a.m 5 3.b odd 2 1
1840.4.a.p 5 4.b odd 2 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{2}^{5} + 5T_{2}^{4} - 24T_{2}^{3} - 101T_{2}^{2} + 145T_{2} + 278 \) acting on \(S_{4}^{\mathrm{new}}(\Gamma_0(115))\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{5} + 5 T^{4} + \cdots + 278 \) Copy content Toggle raw display
$3$ \( T^{5} + 6 T^{4} + \cdots + 895 \) Copy content Toggle raw display
$5$ \( (T + 5)^{5} \) Copy content Toggle raw display
$7$ \( T^{5} + 15 T^{4} + \cdots + 175008 \) Copy content Toggle raw display
$11$ \( T^{5} + 153 T^{4} + \cdots - 58105432 \) Copy content Toggle raw display
$13$ \( T^{5} - 28 T^{4} + \cdots - 42528287 \) Copy content Toggle raw display
$17$ \( T^{5} + \cdots - 1269566848 \) Copy content Toggle raw display
$19$ \( T^{5} - 3 T^{4} + \cdots - 5566328 \) Copy content Toggle raw display
$23$ \( (T - 23)^{5} \) Copy content Toggle raw display
$29$ \( T^{5} + \cdots - 63213004636 \) Copy content Toggle raw display
$31$ \( T^{5} + \cdots + 341100199935 \) Copy content Toggle raw display
$37$ \( T^{5} + \cdots + 337199293312 \) Copy content Toggle raw display
$41$ \( T^{5} + \cdots - 554461833173 \) Copy content Toggle raw display
$43$ \( T^{5} + \cdots + 278531891200 \) Copy content Toggle raw display
$47$ \( T^{5} + \cdots + 6082562728660 \) Copy content Toggle raw display
$53$ \( T^{5} + \cdots - 1069522603168 \) Copy content Toggle raw display
$59$ \( T^{5} + \cdots - 446741827072 \) Copy content Toggle raw display
$61$ \( T^{5} + \cdots + 53636443112 \) Copy content Toggle raw display
$67$ \( T^{5} + \cdots - 19766839800960 \) Copy content Toggle raw display
$71$ \( T^{5} + \cdots + 256345940645 \) Copy content Toggle raw display
$73$ \( T^{5} + \cdots + 3947399121116 \) Copy content Toggle raw display
$79$ \( T^{5} + \cdots - 22913376438144 \) Copy content Toggle raw display
$83$ \( T^{5} + \cdots + 2501024408832 \) Copy content Toggle raw display
$89$ \( T^{5} + \cdots + 279901843479552 \) Copy content Toggle raw display
$97$ \( T^{5} + \cdots - 113500838416 \) Copy content Toggle raw display
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