Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [239,4,Mod(1,239)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(239, base_ring=CyclotomicField(2))
chi = DirichletCharacter(H, H._module([0]))
N = Newforms(chi, 4, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("239.1");
S:= CuspForms(chi, 4);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 239 \) |
Weight: | \( k \) | \(=\) | \( 4 \) |
Character orbit: | \([\chi]\) | \(=\) | 239.a (trivial) |
Newform invariants
comment: select newform
sage: f = N[0] # Warning: the index may be different
gp: f = lf[1] \\ Warning: the index may be different
Self dual: | yes |
Analytic conductor: | \(14.1014564914\) |
Analytic rank: | \(1\) |
Dimension: | \(22\) |
Twist minimal: | yes |
Fricke sign: | \(-1\) |
Sato-Tate group: | $\mathrm{SU}(2)$ |
$q$-expansion
The dimension is sufficiently large that we do not compute an algebraic \(q\)-expansion, but we have computed the trace expansion.
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.
comment: embeddings in the coefficient field
gp: mfembed(f)
Label | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1.1 | −5.49818 | −2.46853 | 22.2300 | 9.50920 | 13.5724 | 4.48068 | −78.2390 | −20.9064 | −52.2833 | ||||||||||||||||||
1.2 | −4.47711 | 2.26082 | 12.0445 | 13.5922 | −10.1220 | −3.12004 | −18.1077 | −21.8887 | −60.8535 | ||||||||||||||||||
1.3 | −4.43192 | 6.11724 | 11.6419 | −11.7413 | −27.1111 | 6.42321 | −16.1407 | 10.4206 | 52.0364 | ||||||||||||||||||
1.4 | −4.40109 | −5.79161 | 11.3696 | −3.94300 | 25.4894 | −14.1222 | −14.8300 | 6.54271 | 17.3535 | ||||||||||||||||||
1.5 | −3.42794 | 9.47202 | 3.75080 | −7.18364 | −32.4695 | −16.4073 | 14.5660 | 62.7191 | 24.6251 | ||||||||||||||||||
1.6 | −3.24958 | −6.78099 | 2.55975 | −21.6437 | 22.0353 | 3.86879 | 17.6785 | 18.9818 | 70.3329 | ||||||||||||||||||
1.7 | −2.38671 | 1.00725 | −2.30360 | −5.10344 | −2.40401 | 12.4633 | 24.5917 | −25.9854 | 12.1804 | ||||||||||||||||||
1.8 | −1.51884 | −9.16488 | −5.69312 | −1.30911 | 13.9200 | −3.41938 | 20.7977 | 56.9950 | 1.98833 | ||||||||||||||||||
1.9 | −1.49092 | −3.24670 | −5.77714 | 16.6313 | 4.84059 | −17.5795 | 20.5407 | −16.4589 | −24.7960 | ||||||||||||||||||
1.10 | −0.976149 | −7.86917 | −7.04713 | −2.51110 | 7.68148 | 23.2375 | 14.6882 | 34.9238 | 2.45121 | ||||||||||||||||||
1.11 | −0.850702 | 4.89751 | −7.27631 | 12.0519 | −4.16632 | −14.5326 | 12.9956 | −3.01442 | −10.2525 | ||||||||||||||||||
1.12 | −0.594431 | 6.68117 | −7.64665 | −5.61897 | −3.97150 | −8.56684 | 9.30086 | 17.6380 | 3.34009 | ||||||||||||||||||
1.13 | 0.530015 | 1.65632 | −7.71908 | −0.726105 | 0.877873 | 27.7214 | −8.33135 | −24.2566 | −0.384847 | ||||||||||||||||||
1.14 | 1.83829 | −7.48019 | −4.62067 | 9.40555 | −13.7508 | 19.7665 | −23.2005 | 28.9532 | 17.2902 | ||||||||||||||||||
1.15 | 2.21535 | 1.44058 | −3.09221 | 10.2488 | 3.19139 | −27.8405 | −24.5732 | −24.9247 | 22.7048 | ||||||||||||||||||
1.16 | 2.22859 | 4.77446 | −3.03338 | −7.56659 | 10.6403 | −1.62323 | −24.5889 | −4.20457 | −16.8628 | ||||||||||||||||||
1.17 | 2.32829 | 6.80655 | −2.57908 | −14.1221 | 15.8476 | −19.8005 | −24.6311 | 19.3291 | −32.8804 | ||||||||||||||||||
1.18 | 3.32790 | −3.19896 | 3.07490 | 7.52905 | −10.6458 | −10.0131 | −16.3902 | −16.7667 | 25.0559 | ||||||||||||||||||
1.19 | 3.64923 | −0.563189 | 5.31692 | −17.2106 | −2.05521 | 24.0056 | −9.79121 | −26.6828 | −62.8056 | ||||||||||||||||||
1.20 | 3.67099 | −2.66709 | 5.47619 | 0.939206 | −9.79088 | −4.16512 | −9.26490 | −19.8866 | 3.44782 | ||||||||||||||||||
See all 22 embeddings |
Atkin-Lehner signs
\( p \) | Sign |
---|---|
\(239\) | \(-1\) |
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 | 239.4.a.a | ✓ | 22 |
3.b | odd | 2 | 1 | 2151.4.a.a | 22 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
239.4.a.a | ✓ | 22 | 1.a | even | 1 | 1 | trivial |
2151.4.a.a | 22 | 3.b | odd | 2 | 1 |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{2}^{22} + 4 T_{2}^{21} - 105 T_{2}^{20} - 397 T_{2}^{19} + 4675 T_{2}^{18} + 16564 T_{2}^{17} + \cdots + 161051648 \) acting on \(S_{4}^{\mathrm{new}}(\Gamma_0(239))\).