Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [833,2,Mod(31,833)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(833, base_ring=CyclotomicField(48))
chi = DirichletCharacter(H, H._module([8, 27]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("833.31");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 833 = 7^{2} \cdot 17 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 833.bc (of order \(48\), degree \(16\), not 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: | \(6.65153848837\) |
Analytic rank: | \(0\) |
Dimension: | \(144\) |
Relative dimension: | \(9\) over \(\Q(\zeta_{48})\) |
Twist minimal: | yes |
Sato-Tate group: | $\mathrm{SU}(2)[C_{48}]$ |
$q$-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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
31.1 | −1.91484 | − | 1.46931i | 0.364424 | − | 0.415546i | 0.990110 | + | 3.69514i | −1.59065 | + | 3.22553i | −1.30838 | + | 0.260253i | 0 | 1.68611 | − | 4.07063i | 0.351705 | + | 2.67146i | 7.78515 | − | 3.83921i | ||
31.2 | −1.68105 | − | 1.28992i | −1.52675 | + | 1.74093i | 0.644413 | + | 2.40498i | 0.749763 | − | 1.52037i | 4.81221 | − | 0.957207i | 0 | 0.397183 | − | 0.958885i | −0.308279 | − | 2.34161i | −3.22154 | + | 1.58869i | ||
31.3 | −0.872917 | − | 0.669813i | 2.15498 | − | 2.45729i | −0.204303 | − | 0.762470i | −0.160571 | + | 0.325606i | −3.52704 | + | 0.701572i | 0 | −1.17450 | + | 2.83548i | −1.00273 | − | 7.61648i | 0.358260 | − | 0.176674i | ||
31.4 | −0.543824 | − | 0.417291i | −0.0827370 | + | 0.0943435i | −0.396025 | − | 1.47799i | 0.455770 | − | 0.924209i | 0.0843631 | − | 0.0167809i | 0 | −0.926022 | + | 2.23562i | 0.389523 | + | 2.95872i | −0.633523 | + | 0.312419i | ||
31.5 | −0.305780 | − | 0.234633i | −1.84733 | + | 2.10648i | −0.479190 | − | 1.78836i | −1.55079 | + | 3.14470i | 1.05913 | − | 0.210673i | 0 | −0.568075 | + | 1.37145i | −0.633039 | − | 4.80841i | 1.21205 | − | 0.597717i | ||
31.6 | 0.546565 | + | 0.419394i | 0.584020 | − | 0.665947i | −0.394796 | − | 1.47340i | −1.18809 | + | 2.40922i | 0.598499 | − | 0.119049i | 0 | 0.929438 | − | 2.24386i | 0.289172 | + | 2.19648i | −1.65978 | + | 0.818514i | ||
31.7 | 0.860961 | + | 0.660639i | 1.05295 | − | 1.20066i | −0.212828 | − | 0.794283i | 1.83214 | − | 3.71521i | 1.69976 | − | 0.338102i | 0 | 1.17209 | − | 2.82967i | 0.0586975 | + | 0.445852i | 4.03182 | − | 1.98827i | ||
31.8 | 1.27476 | + | 0.978157i | −1.85836 | + | 2.11905i | 0.150581 | + | 0.561975i | 0.992455 | − | 2.01250i | −4.44172 | + | 0.883512i | 0 | 0.872044 | − | 2.10530i | −0.645302 | − | 4.90156i | 3.23368 | − | 1.59467i | ||
31.9 | 1.84278 | + | 1.41401i | −0.194915 | + | 0.222258i | 0.878756 | + | 3.27956i | −0.539679 | + | 1.09436i | −0.673459 | + | 0.133959i | 0 | −1.24022 | + | 2.99415i | 0.380172 | + | 2.88769i | −2.54195 | + | 1.25355i | ||
80.1 | −1.44161 | + | 1.87874i | −1.57299 | + | 0.103099i | −0.933791 | − | 3.48496i | 0.355827 | − | 0.120787i | 2.07394 | − | 3.10387i | 0 | 3.51781 | + | 1.45712i | −0.510656 | + | 0.0672292i | −0.286036 | + | 0.842634i | ||
80.2 | −1.37317 | + | 1.78956i | 2.68168 | − | 0.175766i | −0.799265 | − | 2.98290i | 3.74174 | − | 1.27015i | −3.36787 | + | 5.04037i | 0 | 2.26763 | + | 0.939281i | 4.18617 | − | 0.551120i | −2.86506 | + | 8.44020i | ||
80.3 | −1.04811 | + | 1.36592i | 1.96798 | − | 0.128988i | −0.249574 | − | 0.931424i | −3.73402 | + | 1.26753i | −1.88647 | + | 2.82330i | 0 | −1.64747 | − | 0.682403i | 0.881965 | − | 0.116113i | 2.18232 | − | 6.42889i | ||
80.4 | −0.261624 | + | 0.340955i | 0.481139 | − | 0.0315355i | 0.469835 | + | 1.75345i | 0.618139 | − | 0.209830i | −0.115125 | + | 0.172297i | 0 | −1.51487 | − | 0.627480i | −2.74383 | + | 0.361233i | −0.0901776 | + | 0.265655i | ||
80.5 | −0.112383 | + | 0.146460i | −3.23999 | + | 0.212360i | 0.508817 | + | 1.89893i | 3.33652 | − | 1.13259i | 0.333017 | − | 0.498395i | 0 | −0.676412 | − | 0.280179i | 7.47813 | − | 0.984514i | −0.209087 | + | 0.615949i | ||
80.6 | 0.433555 | − | 0.565020i | −1.62941 | + | 0.106797i | 0.386361 | + | 1.44192i | −2.99371 | + | 1.01623i | −0.646095 | + | 0.966950i | 0 | 2.29818 | + | 0.951937i | −0.330774 | + | 0.0435472i | −0.723749 | + | 2.13210i | ||
80.7 | 0.559738 | − | 0.729465i | 3.05045 | − | 0.199937i | 0.298826 | + | 1.11523i | 0.905309 | − | 0.307311i | 1.56160 | − | 2.33711i | 0 | 2.67975 | + | 1.10999i | 6.29091 | − | 0.828214i | 0.282564 | − | 0.832405i | ||
80.8 | 1.10794 | − | 1.44390i | 0.615539 | − | 0.0403446i | −0.339669 | − | 1.26766i | 1.15379 | − | 0.391659i | 0.623729 | − | 0.933476i | 0 | 1.15620 | + | 0.478915i | −2.59707 | + | 0.341911i | 0.712817 | − | 2.09989i | ||
80.9 | 1.52690 | − | 1.98990i | −2.05639 | + | 0.134783i | −1.11062 | − | 4.14490i | 0.578222 | − | 0.196280i | −2.87171 | + | 4.29781i | 0 | −5.30917 | − | 2.19913i | 1.23625 | − | 0.162756i | 0.492311 | − | 1.45030i | ||
129.1 | −2.48675 | + | 0.327387i | 0.911471 | + | 1.84828i | 4.14490 | − | 1.11062i | −0.459094 | + | 0.402615i | −2.87171 | − | 4.29781i | 0 | −5.30917 | + | 2.19913i | −0.759077 | + | 0.989249i | 1.00984 | − | 1.15150i | ||
129.2 | −1.80442 | + | 0.237557i | −0.272830 | − | 0.553245i | 1.26766 | − | 0.339669i | −0.916082 | + | 0.803382i | 0.623729 | + | 0.933476i | 0 | 1.15620 | − | 0.478915i | 1.59464 | − | 2.07818i | 1.46215 | − | 1.66726i | ||
See next 80 embeddings (of 144 total) |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
7.c | even | 3 | 1 | inner |
119.p | even | 16 | 1 | inner |
119.s | even | 48 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 833.2.bc.b | 144 | |
7.b | odd | 2 | 1 | 833.2.bc.c | 144 | ||
7.c | even | 3 | 1 | 833.2.t.c | yes | 72 | |
7.c | even | 3 | 1 | inner | 833.2.bc.b | 144 | |
7.d | odd | 6 | 1 | 833.2.t.b | ✓ | 72 | |
7.d | odd | 6 | 1 | 833.2.bc.c | 144 | ||
17.e | odd | 16 | 1 | 833.2.bc.c | 144 | ||
119.p | even | 16 | 1 | inner | 833.2.bc.b | 144 | |
119.s | even | 48 | 1 | 833.2.t.c | yes | 72 | |
119.s | even | 48 | 1 | inner | 833.2.bc.b | 144 | |
119.t | odd | 48 | 1 | 833.2.t.b | ✓ | 72 | |
119.t | odd | 48 | 1 | 833.2.bc.c | 144 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
833.2.t.b | ✓ | 72 | 7.d | odd | 6 | 1 | |
833.2.t.b | ✓ | 72 | 119.t | odd | 48 | 1 | |
833.2.t.c | yes | 72 | 7.c | even | 3 | 1 | |
833.2.t.c | yes | 72 | 119.s | even | 48 | 1 | |
833.2.bc.b | 144 | 1.a | even | 1 | 1 | trivial | |
833.2.bc.b | 144 | 7.c | even | 3 | 1 | inner | |
833.2.bc.b | 144 | 119.p | even | 16 | 1 | inner | |
833.2.bc.b | 144 | 119.s | even | 48 | 1 | inner | |
833.2.bc.c | 144 | 7.b | odd | 2 | 1 | ||
833.2.bc.c | 144 | 7.d | odd | 6 | 1 | ||
833.2.bc.c | 144 | 17.e | odd | 16 | 1 | ||
833.2.bc.c | 144 | 119.t | odd | 48 | 1 |
Hecke kernels
This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(833, [\chi])\):
\( T_{2}^{144} + 8 T_{2}^{139} - 72 T_{2}^{137} - 4695 T_{2}^{136} + 1088 T_{2}^{135} + 16 T_{2}^{134} + \cdots + 407555836801 \) |
\( T_{3}^{144} - 12 T_{3}^{142} - 48 T_{3}^{141} + 128 T_{3}^{140} + 504 T_{3}^{139} + \cdots + 23207419838464 \) |