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Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [345,4,Mod(1,345)] 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("345.1"); S:= CuspForms(chi, 4); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(345, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0, 0, 0])) N = Newforms(chi, 4, names="a")
 
Level: \( N \) \(=\) \( 345 = 3 \cdot 5 \cdot 23 \)
Weight: \( k \) \(=\) \( 4 \)
Character orbit: \([\chi]\) \(=\) 345.a (trivial)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [6,-4,-18] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(3)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: yes
Analytic conductor: \(20.3556589520\)
Analytic rank: \(1\)
Dimension: \(6\)
Coefficient field: \(\mathbb{Q}[x]/(x^{6} - \cdots)\)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{6} - 2x^{5} - 34x^{4} + 38x^{3} + 293x^{2} - 12x - 144 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{13}]\)
Coefficient ring index: \( 2^{3} \)
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 \(1,\beta_1,\ldots,\beta_{5}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + (\beta_1 - 1) q^{2} - 3 q^{3} + (\beta_{2} - \beta_1 + 5) q^{4} + 5 q^{5} + ( - 3 \beta_1 + 3) q^{6} + ( - \beta_{3} - \beta_1 - 6) q^{7} + (\beta_{3} - 2 \beta_{2} + 3 \beta_1 - 11) q^{8} + 9 q^{9}+ \cdots + (9 \beta_{5} + 9 \beta_{4} + 9 \beta_{3} + \cdots - 63) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 6 q - 4 q^{2} - 18 q^{3} + 26 q^{4} + 30 q^{5} + 12 q^{6} - 40 q^{7} - 54 q^{8} + 54 q^{9} - 20 q^{10} - 48 q^{11} - 78 q^{12} - 56 q^{13} - 50 q^{14} - 90 q^{15} + 42 q^{16} - 84 q^{17} - 36 q^{18} + 80 q^{19}+ \cdots - 432 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{6} - 2x^{5} - 34x^{4} + 38x^{3} + 293x^{2} - 12x - 144 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( \nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( \nu^{2} - \nu - 12 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( \nu^{3} - \nu^{2} - 18\nu + 2 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( \nu^{5} + \nu^{4} - 31\nu^{3} - 37\nu^{2} + 200\nu + 174 ) / 18 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( -2\nu^{5} + 7\nu^{4} + 62\nu^{3} - 142\nu^{2} - 481\nu + 174 ) / 9 \) Copy content Toggle raw display
\(\nu\)\(=\) \( \beta_1 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( \beta_{2} + \beta _1 + 12 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( \beta_{3} + \beta_{2} + 19\beta _1 + 10 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( \beta_{5} + 4\beta_{4} + 24\beta_{2} + 33\beta _1 + 230 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( -\beta_{5} + 14\beta_{4} + 31\beta_{3} + 44\beta_{2} + 393\beta _1 + 350 \) 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
−4.33023
−2.94479
−0.738974
0.710221
4.30064
5.00313
−5.33023 −3.00000 20.4114 5.00000 15.9907 18.3327 −66.1555 9.00000 −26.6512
1.2 −3.94479 −3.00000 7.56134 5.00000 11.8344 −23.8531 1.73043 9.00000 −19.7239
1.3 −1.73897 −3.00000 −4.97597 5.00000 5.21692 −19.6129 22.5649 9.00000 −8.69487
1.4 −0.289779 −3.00000 −7.91603 5.00000 0.869338 4.21992 4.61214 9.00000 −1.44890
1.5 3.30064 −3.00000 2.89421 5.00000 −9.90191 4.06396 −16.8524 9.00000 16.5032
1.6 4.00313 −3.00000 8.02508 5.00000 −12.0094 −23.1506 0.100409 9.00000 20.0157
\(n\): e.g. 2-40 or 80-90
Embeddings: e.g. 1-3 or 1.6
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 345.4.a.i ✓ 6
3.b odd 2 1 1035.4.a.q 6
5.b even 2 1 1725.4.a.x 6
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
345.4.a.i ✓ 6 1.a even 1 1 trivial
1035.4.a.q 6 3.b odd 2 1
1725.4.a.x 6 5.b even 2 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{2}^{6} + 4T_{2}^{5} - 29T_{2}^{4} - 98T_{2}^{3} + 198T_{2}^{2} + 548T_{2} + 140 \) acting on \(S_{4}^{\mathrm{new}}(\Gamma_0(345))\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{6} + 4 T^{5} + \cdots + 140 \) Copy content Toggle raw display
$3$ \( (T + 3)^{6} \) Copy content Toggle raw display
$5$ \( (T - 5)^{6} \) Copy content Toggle raw display
$7$ \( T^{6} + 40 T^{5} + \cdots - 3405104 \) Copy content Toggle raw display
$11$ \( T^{6} + 48 T^{5} + \cdots + 79041536 \) Copy content Toggle raw display
$13$ \( T^{6} + \cdots - 17569769904 \) Copy content Toggle raw display
$17$ \( T^{6} + \cdots + 4644582060 \) Copy content Toggle raw display
$19$ \( T^{6} + \cdots + 240989265664 \) Copy content Toggle raw display
$23$ \( (T + 23)^{6} \) Copy content Toggle raw display
$29$ \( T^{6} + \cdots - 981064322660 \) Copy content Toggle raw display
$31$ \( T^{6} + \cdots + 14465095567616 \) Copy content Toggle raw display
$37$ \( T^{6} + \cdots + 667948862332 \) Copy content Toggle raw display
$41$ \( T^{6} + \cdots + 38665089298772 \) Copy content Toggle raw display
$43$ \( T^{6} + \cdots + 393309913017600 \) Copy content Toggle raw display
$47$ \( T^{6} + \cdots + 5540106113280 \) Copy content Toggle raw display
$53$ \( T^{6} + \cdots + 694355179374996 \) Copy content Toggle raw display
$59$ \( T^{6} + \cdots - 383618353311168 \) Copy content Toggle raw display
$61$ \( T^{6} + \cdots - 15\!\cdots\!72 \) Copy content Toggle raw display
$67$ \( T^{6} + \cdots + 30\!\cdots\!56 \) Copy content Toggle raw display
$71$ \( T^{6} + \cdots - 722494790804464 \) Copy content Toggle raw display
$73$ \( T^{6} + \cdots - 510701189362704 \) Copy content Toggle raw display
$79$ \( T^{6} + \cdots - 20\!\cdots\!40 \) Copy content Toggle raw display
$83$ \( T^{6} + \cdots + 133188280336656 \) Copy content Toggle raw display
$89$ \( T^{6} + \cdots + 86\!\cdots\!48 \) Copy content Toggle raw display
$97$ \( T^{6} + \cdots - 16\!\cdots\!44 \) Copy content Toggle raw display
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