Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [495,2,Mod(28,495)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(495, base_ring=CyclotomicField(20))
chi = DirichletCharacter(H, H._module([0, 15, 18]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("495.28");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 495 = 3^{2} \cdot 5 \cdot 11 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 495.bj (of order \(20\), degree \(8\), 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: | \(3.95259490005\) |
Analytic rank: | \(0\) |
Dimension: | \(32\) |
Relative dimension: | \(4\) over \(\Q(\zeta_{20})\) |
Twist minimal: | no (minimal twist has level 55) |
Sato-Tate group: | $\mathrm{SU}(2)[C_{20}]$ |
$q$-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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
28.1 | −0.665529 | + | 1.30617i | 0 | −0.0875924 | − | 0.120561i | 1.11862 | − | 1.93615i | 0 | −4.16343 | − | 0.659422i | −2.68004 | + | 0.424477i | 0 | 1.78448 | + | 2.74968i | ||||||
28.2 | 0.261423 | − | 0.513072i | 0 | 0.980670 | + | 1.34978i | 1.76986 | + | 1.36660i | 0 | 1.17850 | + | 0.186656i | 2.08639 | − | 0.330452i | 0 | 1.16385 | − | 0.550801i | ||||||
28.3 | 0.474334 | − | 0.930933i | 0 | 0.533928 | + | 0.734888i | −2.23541 | + | 0.0540419i | 0 | −0.543058 | − | 0.0860119i | 3.00128 | − | 0.475357i | 0 | −1.01002 | + | 2.10665i | ||||||
28.4 | 1.15100 | − | 2.25897i | 0 | −2.60258 | − | 3.58214i | −1.91314 | + | 1.15755i | 0 | −1.78576 | − | 0.282837i | −6.07934 | + | 0.962874i | 0 | 0.412838 | + | 5.65406i | ||||||
73.1 | −0.380541 | − | 2.40264i | 0 | −3.72576 | + | 1.21057i | 0.622076 | + | 2.14779i | 0 | 1.17208 | − | 2.30033i | 2.11764 | + | 4.15610i | 0 | 4.92366 | − | 2.31195i | ||||||
73.2 | −0.193716 | − | 1.22307i | 0 | 0.443732 | − | 0.144177i | 0.536423 | − | 2.17077i | 0 | 1.57455 | − | 3.09022i | −1.38667 | − | 2.72149i | 0 | −2.75893 | − | 0.235572i | ||||||
73.3 | 0.0763931 | + | 0.482327i | 0 | 1.67531 | − | 0.544341i | −1.47656 | + | 1.67922i | 0 | −1.32402 | + | 2.59854i | 0.833936 | + | 1.63669i | 0 | −0.922733 | − | 0.583903i | ||||||
73.4 | 0.237790 | + | 1.50135i | 0 | −0.295389 | + | 0.0959778i | 1.71486 | − | 1.43501i | 0 | 0.0869260 | − | 0.170602i | 1.16585 | + | 2.28811i | 0 | 2.56223 | + | 2.23337i | ||||||
118.1 | −1.50135 | − | 0.237790i | 0 | 0.295389 | + | 0.0959778i | 1.89470 | + | 1.18749i | 0 | 0.170602 | − | 0.0869260i | 2.28811 | + | 1.16585i | 0 | −2.56223 | − | 2.23337i | ||||||
118.2 | −0.482327 | − | 0.0763931i | 0 | −1.67531 | − | 0.544341i | −2.05331 | − | 0.885381i | 0 | −2.59854 | + | 1.32402i | 1.63669 | + | 0.833936i | 0 | 0.922733 | + | 0.583903i | ||||||
118.3 | 1.22307 | + | 0.193716i | 0 | −0.443732 | − | 0.144177i | 2.23029 | − | 0.160637i | 0 | 3.09022 | − | 1.57455i | −2.72149 | − | 1.38667i | 0 | 2.75893 | + | 0.235572i | ||||||
118.4 | 2.40264 | + | 0.380541i | 0 | 3.72576 | + | 1.21057i | −1.85044 | + | 1.25533i | 0 | 2.30033 | − | 1.17208i | 4.15610 | + | 2.11764i | 0 | −4.92366 | + | 2.31195i | ||||||
127.1 | −1.30617 | − | 0.665529i | 0 | 0.0875924 | + | 0.120561i | 0.233059 | − | 2.22389i | 0 | 0.659422 | − | 4.16343i | 0.424477 | + | 2.68004i | 0 | −1.78448 | + | 2.74968i | ||||||
127.2 | 0.513072 | + | 0.261423i | 0 | −0.980670 | − | 1.34978i | −2.23511 | + | 0.0653109i | 0 | −0.186656 | + | 1.17850i | −0.330452 | − | 2.08639i | 0 | −1.16385 | − | 0.550801i | ||||||
127.3 | 0.930933 | + | 0.474334i | 0 | −0.533928 | − | 0.734888i | 1.77672 | + | 1.35766i | 0 | 0.0860119 | − | 0.543058i | −0.475357 | − | 3.00128i | 0 | 1.01002 | + | 2.10665i | ||||||
127.4 | 2.25897 | + | 1.15100i | 0 | 2.60258 | + | 3.58214i | 0.867371 | + | 2.06099i | 0 | 0.282837 | − | 1.78576i | 0.962874 | + | 6.07934i | 0 | −0.412838 | + | 5.65406i | ||||||
172.1 | −1.50135 | + | 0.237790i | 0 | 0.295389 | − | 0.0959778i | 1.89470 | − | 1.18749i | 0 | 0.170602 | + | 0.0869260i | 2.28811 | − | 1.16585i | 0 | −2.56223 | + | 2.23337i | ||||||
172.2 | −0.482327 | + | 0.0763931i | 0 | −1.67531 | + | 0.544341i | −2.05331 | + | 0.885381i | 0 | −2.59854 | − | 1.32402i | 1.63669 | − | 0.833936i | 0 | 0.922733 | − | 0.583903i | ||||||
172.3 | 1.22307 | − | 0.193716i | 0 | −0.443732 | + | 0.144177i | 2.23029 | + | 0.160637i | 0 | 3.09022 | + | 1.57455i | −2.72149 | + | 1.38667i | 0 | 2.75893 | − | 0.235572i | ||||||
172.4 | 2.40264 | − | 0.380541i | 0 | 3.72576 | − | 1.21057i | −1.85044 | − | 1.25533i | 0 | 2.30033 | + | 1.17208i | 4.15610 | − | 2.11764i | 0 | −4.92366 | − | 2.31195i | ||||||
See all 32 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
5.c | odd | 4 | 1 | inner |
11.d | odd | 10 | 1 | inner |
55.l | even | 20 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 495.2.bj.a | 32 | |
3.b | odd | 2 | 1 | 55.2.l.a | ✓ | 32 | |
5.c | odd | 4 | 1 | inner | 495.2.bj.a | 32 | |
11.d | odd | 10 | 1 | inner | 495.2.bj.a | 32 | |
12.b | even | 2 | 1 | 880.2.cm.a | 32 | ||
15.d | odd | 2 | 1 | 275.2.bm.b | 32 | ||
15.e | even | 4 | 1 | 55.2.l.a | ✓ | 32 | |
15.e | even | 4 | 1 | 275.2.bm.b | 32 | ||
33.d | even | 2 | 1 | 605.2.m.e | 32 | ||
33.f | even | 10 | 1 | 55.2.l.a | ✓ | 32 | |
33.f | even | 10 | 1 | 605.2.e.b | 32 | ||
33.f | even | 10 | 1 | 605.2.m.c | 32 | ||
33.f | even | 10 | 1 | 605.2.m.d | 32 | ||
33.h | odd | 10 | 1 | 605.2.e.b | 32 | ||
33.h | odd | 10 | 1 | 605.2.m.c | 32 | ||
33.h | odd | 10 | 1 | 605.2.m.d | 32 | ||
33.h | odd | 10 | 1 | 605.2.m.e | 32 | ||
55.l | even | 20 | 1 | inner | 495.2.bj.a | 32 | |
60.l | odd | 4 | 1 | 880.2.cm.a | 32 | ||
132.n | odd | 10 | 1 | 880.2.cm.a | 32 | ||
165.l | odd | 4 | 1 | 605.2.m.e | 32 | ||
165.r | even | 10 | 1 | 275.2.bm.b | 32 | ||
165.u | odd | 20 | 1 | 55.2.l.a | ✓ | 32 | |
165.u | odd | 20 | 1 | 275.2.bm.b | 32 | ||
165.u | odd | 20 | 1 | 605.2.e.b | 32 | ||
165.u | odd | 20 | 1 | 605.2.m.c | 32 | ||
165.u | odd | 20 | 1 | 605.2.m.d | 32 | ||
165.v | even | 20 | 1 | 605.2.e.b | 32 | ||
165.v | even | 20 | 1 | 605.2.m.c | 32 | ||
165.v | even | 20 | 1 | 605.2.m.d | 32 | ||
165.v | even | 20 | 1 | 605.2.m.e | 32 | ||
660.bv | even | 20 | 1 | 880.2.cm.a | 32 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
55.2.l.a | ✓ | 32 | 3.b | odd | 2 | 1 | |
55.2.l.a | ✓ | 32 | 15.e | even | 4 | 1 | |
55.2.l.a | ✓ | 32 | 33.f | even | 10 | 1 | |
55.2.l.a | ✓ | 32 | 165.u | odd | 20 | 1 | |
275.2.bm.b | 32 | 15.d | odd | 2 | 1 | ||
275.2.bm.b | 32 | 15.e | even | 4 | 1 | ||
275.2.bm.b | 32 | 165.r | even | 10 | 1 | ||
275.2.bm.b | 32 | 165.u | odd | 20 | 1 | ||
495.2.bj.a | 32 | 1.a | even | 1 | 1 | trivial | |
495.2.bj.a | 32 | 5.c | odd | 4 | 1 | inner | |
495.2.bj.a | 32 | 11.d | odd | 10 | 1 | inner | |
495.2.bj.a | 32 | 55.l | even | 20 | 1 | inner | |
605.2.e.b | 32 | 33.f | even | 10 | 1 | ||
605.2.e.b | 32 | 33.h | odd | 10 | 1 | ||
605.2.e.b | 32 | 165.u | odd | 20 | 1 | ||
605.2.e.b | 32 | 165.v | even | 20 | 1 | ||
605.2.m.c | 32 | 33.f | even | 10 | 1 | ||
605.2.m.c | 32 | 33.h | odd | 10 | 1 | ||
605.2.m.c | 32 | 165.u | odd | 20 | 1 | ||
605.2.m.c | 32 | 165.v | even | 20 | 1 | ||
605.2.m.d | 32 | 33.f | even | 10 | 1 | ||
605.2.m.d | 32 | 33.h | odd | 10 | 1 | ||
605.2.m.d | 32 | 165.u | odd | 20 | 1 | ||
605.2.m.d | 32 | 165.v | even | 20 | 1 | ||
605.2.m.e | 32 | 33.d | even | 2 | 1 | ||
605.2.m.e | 32 | 33.h | odd | 10 | 1 | ||
605.2.m.e | 32 | 165.l | odd | 4 | 1 | ||
605.2.m.e | 32 | 165.v | even | 20 | 1 | ||
880.2.cm.a | 32 | 12.b | even | 2 | 1 | ||
880.2.cm.a | 32 | 60.l | odd | 4 | 1 | ||
880.2.cm.a | 32 | 132.n | odd | 10 | 1 | ||
880.2.cm.a | 32 | 660.bv | even | 20 | 1 |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{2}^{32} - 10 T_{2}^{31} + 50 T_{2}^{30} - 170 T_{2}^{29} + 430 T_{2}^{28} - 800 T_{2}^{27} + \cdots + 625 \) acting on \(S_{2}^{\mathrm{new}}(495, [\chi])\).