Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [19,8,Mod(4,19)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(19, base_ring=CyclotomicField(18))
chi = DirichletCharacter(H, H._module([2]))
N = Newforms(chi, 8, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("19.4");
S:= CuspForms(chi, 8);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 19 \) |
Weight: | \( k \) | \(=\) | \( 8 \) |
Character orbit: | \([\chi]\) | \(=\) | 19.e (of order \(9\), degree \(6\), 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: | \(5.93531548420\) |
Analytic rank: | \(0\) |
Dimension: | \(66\) |
Relative dimension: | \(11\) over \(\Q(\zeta_{9})\) |
Twist minimal: | yes |
Sato-Tate group: | $\mathrm{SU}(2)[C_{9}]$ |
$q$-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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
4.1 | −20.4728 | − | 7.45148i | −4.63945 | − | 26.3116i | 265.556 | + | 222.828i | 384.427 | − | 322.572i | −101.078 | + | 573.243i | −238.816 | + | 413.641i | −2381.93 | − | 4125.62i | 1384.33 | − | 503.855i | −10273.9 | + | 3739.40i |
4.2 | −16.1237 | − | 5.86856i | −1.10168 | − | 6.24791i | 127.481 | + | 106.969i | −376.180 | + | 315.652i | −18.9031 | + | 107.205i | 461.686 | − | 799.664i | −329.571 | − | 570.833i | 2017.29 | − | 734.232i | 7917.85 | − | 2881.86i |
4.3 | −14.5692 | − | 5.30275i | 15.4254 | + | 87.4821i | 86.0882 | + | 72.2366i | 40.6287 | − | 34.0916i | 239.159 | − | 1356.34i | −203.416 | + | 352.328i | 121.087 | + | 209.728i | −5360.06 | + | 1950.90i | −772.706 | + | 281.242i |
4.4 | −8.72597 | − | 3.17599i | 1.07731 | + | 6.10973i | −31.9981 | − | 26.8496i | 41.8327 | − | 35.1018i | 10.0039 | − | 56.7348i | −434.677 | + | 752.883i | 788.243 | + | 1365.28i | 2018.94 | − | 734.834i | −476.514 | + | 173.437i |
4.5 | −8.08875 | − | 2.94406i | −14.2479 | − | 80.8039i | −41.2933 | − | 34.6492i | 63.0220 | − | 52.8818i | −122.644 | + | 695.549i | 204.570 | − | 354.325i | 782.905 | + | 1356.03i | −4271.15 | + | 1554.57i | −665.457 | + | 242.206i |
4.6 | −0.187302 | − | 0.0681723i | 4.20494 | + | 23.8474i | −98.0233 | − | 82.2513i | 159.085 | − | 133.488i | 0.838140 | − | 4.75333i | 433.332 | − | 750.553i | 25.5093 | + | 44.1834i | 1504.09 | − | 547.444i | −38.8972 | + | 14.1574i |
4.7 | 5.64598 | + | 2.05497i | −6.62088 | − | 37.5489i | −70.3995 | − | 59.0722i | −287.758 | + | 241.457i | 39.7804 | − | 225.606i | −681.236 | + | 1179.94i | −660.616 | − | 1144.22i | 689.025 | − | 250.785i | −2120.86 | + | 771.930i |
4.8 | 6.77842 | + | 2.46714i | 12.1486 | + | 68.8984i | −58.1936 | − | 48.8302i | −297.538 | + | 249.664i | −87.6335 | + | 496.994i | 330.309 | − | 572.112i | −735.649 | − | 1274.18i | −2544.29 | + | 926.046i | −2632.79 | + | 958.257i |
4.9 | 12.6181 | + | 4.59260i | −9.09979 | − | 51.6075i | 40.0701 | + | 33.6228i | 154.381 | − | 129.541i | 122.191 | − | 692.979i | 257.216 | − | 445.511i | −508.193 | − | 880.216i | −525.417 | + | 191.236i | 2542.92 | − | 925.547i |
4.10 | 14.3741 | + | 5.23173i | 10.4622 | + | 59.3343i | 81.1888 | + | 68.1255i | 309.155 | − | 259.412i | −160.036 | + | 907.611i | −763.591 | + | 1322.58i | −168.381 | − | 291.644i | −1356.00 | + | 493.542i | 5800.99 | − | 2111.39i |
4.11 | 19.4676 | + | 7.08563i | 1.26187 | + | 7.15643i | 230.728 | + | 193.603i | −192.996 | + | 161.943i | −26.1422 | + | 148.260i | 294.273 | − | 509.696i | 1794.02 | + | 3107.34i | 2005.49 | − | 729.937i | −4904.64 | + | 1785.14i |
5.1 | −20.4728 | + | 7.45148i | −4.63945 | + | 26.3116i | 265.556 | − | 222.828i | 384.427 | + | 322.572i | −101.078 | − | 573.243i | −238.816 | − | 413.641i | −2381.93 | + | 4125.62i | 1384.33 | + | 503.855i | −10273.9 | − | 3739.40i |
5.2 | −16.1237 | + | 5.86856i | −1.10168 | + | 6.24791i | 127.481 | − | 106.969i | −376.180 | − | 315.652i | −18.9031 | − | 107.205i | 461.686 | + | 799.664i | −329.571 | + | 570.833i | 2017.29 | + | 734.232i | 7917.85 | + | 2881.86i |
5.3 | −14.5692 | + | 5.30275i | 15.4254 | − | 87.4821i | 86.0882 | − | 72.2366i | 40.6287 | + | 34.0916i | 239.159 | + | 1356.34i | −203.416 | − | 352.328i | 121.087 | − | 209.728i | −5360.06 | − | 1950.90i | −772.706 | − | 281.242i |
5.4 | −8.72597 | + | 3.17599i | 1.07731 | − | 6.10973i | −31.9981 | + | 26.8496i | 41.8327 | + | 35.1018i | 10.0039 | + | 56.7348i | −434.677 | − | 752.883i | 788.243 | − | 1365.28i | 2018.94 | + | 734.834i | −476.514 | − | 173.437i |
5.5 | −8.08875 | + | 2.94406i | −14.2479 | + | 80.8039i | −41.2933 | + | 34.6492i | 63.0220 | + | 52.8818i | −122.644 | − | 695.549i | 204.570 | + | 354.325i | 782.905 | − | 1356.03i | −4271.15 | − | 1554.57i | −665.457 | − | 242.206i |
5.6 | −0.187302 | + | 0.0681723i | 4.20494 | − | 23.8474i | −98.0233 | + | 82.2513i | 159.085 | + | 133.488i | 0.838140 | + | 4.75333i | 433.332 | + | 750.553i | 25.5093 | − | 44.1834i | 1504.09 | + | 547.444i | −38.8972 | − | 14.1574i |
5.7 | 5.64598 | − | 2.05497i | −6.62088 | + | 37.5489i | −70.3995 | + | 59.0722i | −287.758 | − | 241.457i | 39.7804 | + | 225.606i | −681.236 | − | 1179.94i | −660.616 | + | 1144.22i | 689.025 | + | 250.785i | −2120.86 | − | 771.930i |
5.8 | 6.77842 | − | 2.46714i | 12.1486 | − | 68.8984i | −58.1936 | + | 48.8302i | −297.538 | − | 249.664i | −87.6335 | − | 496.994i | 330.309 | + | 572.112i | −735.649 | + | 1274.18i | −2544.29 | − | 926.046i | −2632.79 | − | 958.257i |
5.9 | 12.6181 | − | 4.59260i | −9.09979 | + | 51.6075i | 40.0701 | − | 33.6228i | 154.381 | + | 129.541i | 122.191 | + | 692.979i | 257.216 | + | 445.511i | −508.193 | + | 880.216i | −525.417 | − | 191.236i | 2542.92 | + | 925.547i |
See all 66 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
19.e | even | 9 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 19.8.e.a | ✓ | 66 |
19.e | even | 9 | 1 | inner | 19.8.e.a | ✓ | 66 |
19.e | even | 9 | 1 | 361.8.a.j | 33 | ||
19.f | odd | 18 | 1 | 361.8.a.i | 33 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
19.8.e.a | ✓ | 66 | 1.a | even | 1 | 1 | trivial |
19.8.e.a | ✓ | 66 | 19.e | even | 9 | 1 | inner |
361.8.a.i | 33 | 19.f | odd | 18 | 1 | ||
361.8.a.j | 33 | 19.e | even | 9 | 1 |
Hecke kernels
This newform subspace is the entire newspace \(S_{8}^{\mathrm{new}}(19, [\chi])\).