Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [41,8,Mod(2,41)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(41, base_ring=CyclotomicField(20))
chi = DirichletCharacter(H, H._module([13]))
N = Newforms(chi, 8, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("41.2");
S:= CuspForms(chi, 8);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 41 \) |
Weight: | \( k \) | \(=\) | \( 8 \) |
Character orbit: | \([\chi]\) | \(=\) | 41.g (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: | \(12.8077860448\) |
Analytic rank: | \(0\) |
Dimension: | \(184\) |
Relative dimension: | \(23\) over \(\Q(\zeta_{20})\) |
Twist minimal: | yes |
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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2.1 | −19.8127 | + | 6.43755i | −12.2742 | + | 12.2742i | 247.548 | − | 179.854i | 108.500 | + | 149.338i | 164.170 | − | 322.202i | −281.314 | − | 552.109i | −2179.43 | + | 2999.73i | 1885.69i | −3111.06 | − | 2260.31i | ||
2.2 | −17.7448 | + | 5.76564i | −17.7013 | + | 17.7013i | 178.082 | − | 129.384i | −175.291 | − | 241.268i | 212.048 | − | 416.167i | 480.923 | + | 943.864i | −1010.28 | + | 1390.54i | 1560.32i | 4501.58 | + | 3270.59i | ||
2.3 | −17.1738 | + | 5.58012i | 49.6501 | − | 49.6501i | 160.249 | − | 116.427i | 100.832 | + | 138.783i | −575.629 | + | 1129.74i | 440.682 | + | 864.888i | −743.811 | + | 1023.77i | − | 2743.26i | −2506.10 | − | 1820.79i | |
2.4 | −16.3016 | + | 5.29671i | 39.2964 | − | 39.2964i | 134.133 | − | 97.4531i | −271.618 | − | 373.851i | −432.452 | + | 848.736i | −613.199 | − | 1203.47i | −380.803 | + | 524.131i | − | 901.415i | 6407.99 | + | 4655.68i | |
2.5 | −15.0405 | + | 4.88696i | −62.1240 | + | 62.1240i | 98.7803 | − | 71.7681i | 178.966 | + | 246.326i | 630.779 | − | 1237.97i | −33.7707 | − | 66.2787i | 54.8511 | − | 75.4960i | − | 5531.78i | −3895.53 | − | 2830.27i | |
2.6 | −10.7883 | + | 3.50532i | 14.3032 | − | 14.3032i | 0.545073 | − | 0.396018i | 256.143 | + | 352.551i | −104.169 | + | 204.444i | −479.838 | − | 941.735i | 848.949 | − | 1168.48i | 1777.84i | −3999.14 | − | 2905.55i | ||
2.7 | −10.4933 | + | 3.40949i | −40.7079 | + | 40.7079i | −5.06884 | + | 3.68273i | −160.368 | − | 220.728i | 288.368 | − | 565.954i | −299.588 | − | 587.975i | 870.743 | − | 1198.47i | − | 1127.26i | 2435.36 | + | 1769.40i | |
2.8 | −8.80293 | + | 2.86025i | 22.7681 | − | 22.7681i | −34.2436 | + | 24.8794i | 6.04615 | + | 8.32181i | −135.304 | + | 265.548i | 36.3335 | + | 71.3086i | 926.668 | − | 1275.45i | 1150.23i | −77.0263 | − | 55.9629i | ||
2.9 | −7.72282 | + | 2.50930i | −21.6491 | + | 21.6491i | −50.2087 | + | 36.4788i | 116.205 | + | 159.942i | 112.868 | − | 221.516i | 754.671 | + | 1481.13i | 907.157 | − | 1248.59i | 1249.64i | −1298.77 | − | 943.613i | ||
2.10 | −2.69321 | + | 0.875078i | 22.3769 | − | 22.3769i | −97.0665 | + | 70.5230i | −224.215 | − | 308.606i | −40.6841 | + | 79.8471i | 361.669 | + | 709.816i | 412.763 | − | 568.120i | 1185.55i | 873.913 | + | 634.935i | ||
2.11 | −1.34366 | + | 0.436581i | 62.7001 | − | 62.7001i | −101.939 | + | 74.0633i | −20.6782 | − | 28.4611i | −56.8738 | + | 111.621i | −258.167 | − | 506.682i | 210.932 | − | 290.322i | − | 5675.59i | 40.2099 | + | 29.2142i | |
2.12 | 1.02397 | − | 0.332708i | −24.2757 | + | 24.2757i | −102.616 | + | 74.5551i | −59.3521 | − | 81.6912i | −16.7809 | + | 32.9344i | −559.158 | − | 1097.41i | −161.276 | + | 221.977i | 1008.38i | −87.9541 | − | 63.9024i | ||
2.13 | 1.79829 | − | 0.584300i | −37.4505 | + | 37.4505i | −100.662 | + | 73.1350i | 194.908 | + | 268.268i | −45.4646 | + | 89.2293i | 104.846 | + | 205.772i | −280.546 | + | 386.139i | − | 618.081i | 507.251 | + | 368.539i | |
2.14 | 5.57990 | − | 1.81302i | −62.8194 | + | 62.8194i | −75.7060 | + | 55.0036i | −257.320 | − | 354.171i | −236.633 | + | 464.418i | 608.861 | + | 1194.96i | −764.125 | + | 1051.73i | − | 5705.55i | −2077.94 | − | 1509.71i | |
2.15 | 5.91861 | − | 1.92307i | 24.6212 | − | 24.6212i | −72.2224 | + | 52.4726i | 262.234 | + | 360.934i | 98.3750 | − | 193.072i | −210.393 | − | 412.919i | −794.759 | + | 1093.89i | 974.593i | 2246.16 | + | 1631.93i | ||
2.16 | 7.11485 | − | 2.31175i | 39.6556 | − | 39.6556i | −58.2773 | + | 42.3409i | 160.467 | + | 220.864i | 190.470 | − | 373.818i | 624.096 | + | 1224.86i | −879.596 | + | 1210.66i | − | 958.134i | 1652.28 | + | 1200.45i | |
2.17 | 9.34960 | − | 3.03787i | 6.07651 | − | 6.07651i | −25.3678 | + | 18.4308i | −173.143 | − | 238.312i | 38.3533 | − | 75.2726i | −84.5945 | − | 166.026i | −920.820 | + | 1267.40i | 2113.15i | −2342.78 | − | 1702.13i | ||
2.18 | 14.7986 | − | 4.80835i | 41.7661 | − | 41.7661i | 92.3233 | − | 67.0768i | −22.4940 | − | 30.9603i | 417.253 | − | 818.905i | −670.238 | − | 1315.42i | −126.967 | + | 174.754i | − | 1301.82i | −481.746 | − | 350.009i | |
2.19 | 14.8256 | − | 4.81714i | −59.2178 | + | 59.2178i | 93.0408 | − | 67.5981i | 129.880 | + | 178.764i | −592.681 | + | 1163.20i | −678.121 | − | 1330.89i | −119.073 | + | 163.889i | − | 4826.48i | 2786.68 | + | 2024.64i | |
2.20 | 15.2715 | − | 4.96200i | −24.0933 | + | 24.0933i | 105.042 | − | 76.3174i | 57.3421 | + | 78.9247i | −248.389 | + | 487.490i | 311.247 | + | 610.856i | 17.3556 | − | 23.8879i | 1026.03i | 1267.32 | + | 920.763i | ||
See next 80 embeddings (of 184 total) |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
41.g | even | 20 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 41.8.g.a | ✓ | 184 |
41.g | even | 20 | 1 | inner | 41.8.g.a | ✓ | 184 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
41.8.g.a | ✓ | 184 | 1.a | even | 1 | 1 | trivial |
41.8.g.a | ✓ | 184 | 41.g | even | 20 | 1 | inner |
Hecke kernels
This newform subspace is the entire newspace \(S_{8}^{\mathrm{new}}(41, [\chi])\).