Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [240,4,Mod(61,240)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(240, base_ring=CyclotomicField(4))
chi = DirichletCharacter(H, H._module([0, 3, 0, 0]))
N = Newforms(chi, 4, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("240.61");
S:= CuspForms(chi, 4);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 240 = 2^{4} \cdot 3 \cdot 5 \) |
Weight: | \( k \) | \(=\) | \( 4 \) |
Character orbit: | \([\chi]\) | \(=\) | 240.s (of order \(4\), degree \(2\), minimal) |
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: | no |
Analytic conductor: | \(14.1604584014\) |
Analytic rank: | \(0\) |
Dimension: | \(52\) |
Relative dimension: | \(26\) over \(\Q(i)\) |
Twist minimal: | yes |
Sato-Tate group: | $\mathrm{SU}(2)[C_{4}]$ |
$q$-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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
61.1 | −2.82621 | − | 0.112058i | 2.12132 | + | 2.12132i | 7.97489 | + | 0.633396i | −3.53553 | + | 3.53553i | −5.75758 | − | 6.23300i | 33.8922i | −22.4677 | − | 2.68376i | 9.00000i | 10.3883 | − | 9.59597i | ||||
61.2 | −2.82131 | − | 0.200455i | −2.12132 | − | 2.12132i | 7.91964 | + | 1.13109i | 3.53553 | − | 3.53553i | 5.55968 | + | 6.41014i | − | 31.9806i | −22.1171 | − | 4.77870i | 9.00000i | −10.6836 | + | 9.26614i | |||
61.3 | −2.72649 | − | 0.752512i | 2.12132 | + | 2.12132i | 6.86745 | + | 4.10343i | −3.53553 | + | 3.53553i | −4.18743 | − | 7.38007i | − | 9.24942i | −15.6361 | − | 16.3558i | 9.00000i | 12.3001 | − | 6.97905i | |||
61.4 | −2.60532 | − | 1.10106i | −2.12132 | − | 2.12132i | 5.57535 | + | 5.73720i | 3.53553 | − | 3.53553i | 3.19102 | + | 7.86240i | 16.5280i | −8.20859 | − | 21.0860i | 9.00000i | −13.1040 | + | 5.31837i | ||||
61.5 | −2.56250 | + | 1.19733i | −2.12132 | − | 2.12132i | 5.13281 | − | 6.13630i | 3.53553 | − | 3.53553i | 7.97580 | + | 2.89597i | − | 5.34769i | −5.80568 | + | 21.8699i | 9.00000i | −4.82662 | + | 13.2930i | |||
61.6 | −2.47397 | + | 1.37093i | 2.12132 | + | 2.12132i | 4.24109 | − | 6.78330i | −3.53553 | + | 3.53553i | −8.15628 | − | 2.33990i | − | 14.0467i | −1.19290 | + | 22.5960i | 9.00000i | 3.89984 | − | 13.5938i | |||
61.7 | −1.99476 | − | 2.00522i | 2.12132 | + | 2.12132i | −0.0418486 | + | 7.99989i | −3.53553 | + | 3.53553i | 0.0221937 | − | 8.48525i | − | 5.78064i | 16.1251 | − | 15.8740i | 9.00000i | 14.1421 | + | 0.0369895i | |||
61.8 | −1.99210 | + | 2.00787i | −2.12132 | − | 2.12132i | −0.0630969 | − | 7.99975i | 3.53553 | − | 3.53553i | 8.48522 | − | 0.0334625i | 13.9877i | 16.1882 | + | 15.8096i | 9.00000i | 0.0557708 | + | 14.1420i | ||||
61.9 | −1.67722 | − | 2.27749i | −2.12132 | − | 2.12132i | −2.37388 | + | 7.63968i | 3.53553 | − | 3.53553i | −1.27336 | + | 8.38919i | − | 9.91614i | 21.3808 | − | 7.40691i | 9.00000i | −13.9820 | − | 2.12227i | |||
61.10 | −1.28108 | + | 2.52167i | 2.12132 | + | 2.12132i | −4.71766 | − | 6.46093i | −3.53553 | + | 3.53553i | −8.06686 | + | 2.63169i | − | 10.4604i | 22.3361 | − | 3.61943i | 9.00000i | −4.38615 | − | 13.4448i | |||
61.11 | −0.698684 | − | 2.74077i | −2.12132 | − | 2.12132i | −7.02368 | + | 3.82987i | 3.53553 | − | 3.53553i | −4.33193 | + | 7.29619i | 18.2986i | 15.4041 | + | 16.5745i | 9.00000i | −12.1603 | − | 7.21988i | ||||
61.12 | −0.417304 | + | 2.79747i | −2.12132 | − | 2.12132i | −7.65171 | − | 2.33479i | 3.53553 | − | 3.53553i | 6.81957 | − | 5.04910i | − | 15.0328i | 9.72462 | − | 20.4311i | 9.00000i | 8.41517 | + | 11.3660i | |||
61.13 | 0.0617444 | − | 2.82775i | 2.12132 | + | 2.12132i | −7.99238 | − | 0.349196i | −3.53553 | + | 3.53553i | 6.12955 | − | 5.86759i | − | 5.35310i | −1.48092 | + | 22.5789i | 9.00000i | 9.77932 | + | 10.2159i | |||
61.14 | 0.350930 | + | 2.80657i | 2.12132 | + | 2.12132i | −7.75370 | + | 1.96982i | −3.53553 | + | 3.53553i | −5.20920 | + | 6.69807i | 24.5183i | −8.24944 | − | 21.0700i | 9.00000i | −11.1635 | − | 8.68201i | ||||
61.15 | 0.913783 | − | 2.67675i | −2.12132 | − | 2.12132i | −6.33000 | − | 4.89194i | 3.53553 | − | 3.53553i | −7.61668 | + | 3.73982i | − | 22.3132i | −18.8788 | + | 12.4737i | 9.00000i | −6.23303 | − | 12.6945i | |||
61.16 | 0.969437 | + | 2.65710i | 2.12132 | + | 2.12132i | −6.12038 | + | 5.15179i | −3.53553 | + | 3.53553i | −3.58008 | + | 7.69305i | − | 32.5362i | −19.6221 | − | 11.2682i | 9.00000i | −12.8218 | − | 5.96680i | |||
61.17 | 0.970191 | + | 2.65683i | −2.12132 | − | 2.12132i | −6.11746 | + | 5.15526i | 3.53553 | − | 3.53553i | 3.57789 | − | 7.69407i | 6.51896i | −19.6317 | − | 11.2514i | 9.00000i | 12.8234 | + | 5.96316i | ||||
61.18 | 1.31352 | − | 2.50493i | 2.12132 | + | 2.12132i | −4.54931 | − | 6.58056i | −3.53553 | + | 3.53553i | 8.10016 | − | 2.52734i | 5.83627i | −22.4594 | + | 2.75195i | 9.00000i | 4.21224 | + | 13.5003i | ||||
61.19 | 1.64280 | − | 2.30244i | −2.12132 | − | 2.12132i | −2.60244 | − | 7.56487i | 3.53553 | − | 3.53553i | −8.36911 | + | 1.39931i | 35.4606i | −21.6929 | − | 6.43560i | 9.00000i | −2.33218 | − | 13.9485i | ||||
61.20 | 2.17362 | − | 1.80980i | 2.12132 | + | 2.12132i | 1.44926 | − | 7.86763i | −3.53553 | + | 3.53553i | 8.45011 | + | 0.771785i | 28.2829i | −11.0887 | − | 19.7241i | 9.00000i | −1.28631 | + | 14.0835i | ||||
See all 52 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
16.e | even | 4 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 240.4.s.b | ✓ | 52 |
4.b | odd | 2 | 1 | 960.4.s.b | 52 | ||
16.e | even | 4 | 1 | inner | 240.4.s.b | ✓ | 52 |
16.f | odd | 4 | 1 | 960.4.s.b | 52 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
240.4.s.b | ✓ | 52 | 1.a | even | 1 | 1 | trivial |
240.4.s.b | ✓ | 52 | 16.e | even | 4 | 1 | inner |
960.4.s.b | 52 | 4.b | odd | 2 | 1 | ||
960.4.s.b | 52 | 16.f | odd | 4 | 1 |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{7}^{52} + 10976 T_{7}^{50} + 55717944 T_{7}^{48} + 173770991008 T_{7}^{46} + 373120056503920 T_{7}^{44} + \cdots + 18\!\cdots\!96 \) acting on \(S_{4}^{\mathrm{new}}(240, [\chi])\).