Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [243,3,Mod(26,243)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(243, base_ring=CyclotomicField(18))
chi = DirichletCharacter(H, H._module([1]))
N = Newforms(chi, 3, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("243.26");
S:= CuspForms(chi, 3);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 243 = 3^{5} \) |
Weight: | \( k \) | \(=\) | \( 3 \) |
Character orbit: | \([\chi]\) | \(=\) | 243.f (of order \(18\), degree \(6\), 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: | \(6.62127042396\) |
Analytic rank: | \(0\) |
Dimension: | \(30\) |
Relative dimension: | \(5\) over \(\Q(\zeta_{18})\) |
Twist minimal: | no (minimal twist has level 27) |
Sato-Tate group: | $\mathrm{SU}(2)[C_{18}]$ |
$q$-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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
26.1 | −3.70189 | − | 0.652743i | 0 | 9.51913 | + | 3.46468i | −0.343682 | − | 0.409585i | 0 | −2.61708 | + | 0.952538i | −19.9557 | − | 11.5214i | 0 | 1.00492 | + | 1.74057i | ||||||
26.2 | −1.51019 | − | 0.266287i | 0 | −1.54901 | − | 0.563792i | −0.0324054 | − | 0.0386192i | 0 | −9.26350 | + | 3.37164i | 7.50132 | + | 4.33089i | 0 | 0.0386545 | + | 0.0669515i | ||||||
26.3 | −0.449062 | − | 0.0791817i | 0 | −3.56338 | − | 1.29697i | −1.57741 | − | 1.87988i | 0 | 4.06554 | − | 1.47973i | 3.07708 | + | 1.77655i | 0 | 0.559502 | + | 0.969085i | ||||||
26.4 | 2.39954 | + | 0.423104i | 0 | 1.82001 | + | 0.662430i | −5.80974 | − | 6.92378i | 0 | 1.62667 | − | 0.592058i | −4.35357 | − | 2.51353i | 0 | −11.0112 | − | 19.0720i | ||||||
26.5 | 2.58795 | + | 0.456325i | 0 | 2.73048 | + | 0.993814i | 4.01814 | + | 4.78863i | 0 | 7.62807 | − | 2.77639i | −2.49037 | − | 1.43782i | 0 | 8.21356 | + | 14.2263i | ||||||
53.1 | −1.13691 | + | 3.12364i | 0 | −5.40039 | − | 4.53146i | −6.77366 | − | 1.19438i | 0 | 4.88842 | − | 4.10187i | 8.77937 | − | 5.06877i | 0 | 11.4319 | − | 19.8006i | ||||||
53.2 | −0.445684 | + | 1.22451i | 0 | 1.76340 | + | 1.47966i | 0.430389 | + | 0.0758893i | 0 | −4.66076 | + | 3.91084i | −7.11182 | + | 4.10601i | 0 | −0.284745 | + | 0.493192i | ||||||
53.3 | 0.199035 | − | 0.546844i | 0 | 2.80475 | + | 2.35347i | 7.54962 | + | 1.33120i | 0 | 1.02187 | − | 0.857448i | 3.86112 | − | 2.22922i | 0 | 2.23059 | − | 3.86350i | ||||||
53.4 | 0.663577 | − | 1.82316i | 0 | 0.180586 | + | 0.151529i | −4.25686 | − | 0.750600i | 0 | 6.80967 | − | 5.71399i | 7.11704 | − | 4.10903i | 0 | −4.19322 | + | 7.26288i | ||||||
53.5 | 1.15968 | − | 3.18619i | 0 | −5.74275 | − | 4.81874i | −3.44221 | − | 0.606955i | 0 | −8.32523 | + | 6.98570i | −10.2675 | + | 5.92795i | 0 | −5.92572 | + | 10.2637i | ||||||
107.1 | −2.26025 | + | 2.69367i | 0 | −1.45250 | − | 8.23751i | −1.68497 | + | 4.62942i | 0 | 0.589325 | − | 3.34223i | 13.2912 | + | 7.67367i | 0 | −8.66165 | − | 15.0024i | ||||||
107.2 | −1.51169 | + | 1.80156i | 0 | −0.265826 | − | 1.50758i | 1.97773 | − | 5.43377i | 0 | −0.845783 | + | 4.79667i | −5.02894 | − | 2.90346i | 0 | 6.79956 | + | 11.7772i | ||||||
107.3 | 0.0756536 | − | 0.0901605i | 0 | 0.692187 | + | 3.92559i | −2.11981 | + | 5.82413i | 0 | 1.38457 | − | 7.85231i | 0.814011 | + | 0.469969i | 0 | 0.364735 | + | 0.631740i | ||||||
107.4 | 0.746252 | − | 0.889349i | 0 | 0.460544 | + | 2.61187i | 1.84110 | − | 5.05837i | 0 | −1.82927 | + | 10.3743i | 6.68824 | + | 3.86146i | 0 | −3.12473 | − | 5.41219i | ||||||
107.5 | 1.68399 | − | 2.00691i | 0 | −0.497243 | − | 2.82001i | −0.276220 | + | 0.758907i | 0 | 1.02751 | − | 5.82730i | 2.57852 | + | 1.48871i | 0 | 1.05790 | + | 1.83234i | ||||||
134.1 | −2.26025 | − | 2.69367i | 0 | −1.45250 | + | 8.23751i | −1.68497 | − | 4.62942i | 0 | 0.589325 | + | 3.34223i | 13.2912 | − | 7.67367i | 0 | −8.66165 | + | 15.0024i | ||||||
134.2 | −1.51169 | − | 1.80156i | 0 | −0.265826 | + | 1.50758i | 1.97773 | + | 5.43377i | 0 | −0.845783 | − | 4.79667i | −5.02894 | + | 2.90346i | 0 | 6.79956 | − | 11.7772i | ||||||
134.3 | 0.0756536 | + | 0.0901605i | 0 | 0.692187 | − | 3.92559i | −2.11981 | − | 5.82413i | 0 | 1.38457 | + | 7.85231i | 0.814011 | − | 0.469969i | 0 | 0.364735 | − | 0.631740i | ||||||
134.4 | 0.746252 | + | 0.889349i | 0 | 0.460544 | − | 2.61187i | 1.84110 | + | 5.05837i | 0 | −1.82927 | − | 10.3743i | 6.68824 | − | 3.86146i | 0 | −3.12473 | + | 5.41219i | ||||||
134.5 | 1.68399 | + | 2.00691i | 0 | −0.497243 | + | 2.82001i | −0.276220 | − | 0.758907i | 0 | 1.02751 | + | 5.82730i | 2.57852 | − | 1.48871i | 0 | 1.05790 | − | 1.83234i | ||||||
See all 30 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
27.f | odd | 18 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 243.3.f.a | 30 | |
3.b | odd | 2 | 1 | 243.3.f.d | 30 | ||
9.c | even | 3 | 1 | 81.3.f.a | 30 | ||
9.c | even | 3 | 1 | 243.3.f.b | 30 | ||
9.d | odd | 6 | 1 | 27.3.f.a | ✓ | 30 | |
9.d | odd | 6 | 1 | 243.3.f.c | 30 | ||
27.e | even | 9 | 1 | 27.3.f.a | ✓ | 30 | |
27.e | even | 9 | 1 | 243.3.f.c | 30 | ||
27.e | even | 9 | 1 | 243.3.f.d | 30 | ||
27.e | even | 9 | 1 | 729.3.b.a | 30 | ||
27.f | odd | 18 | 1 | 81.3.f.a | 30 | ||
27.f | odd | 18 | 1 | inner | 243.3.f.a | 30 | |
27.f | odd | 18 | 1 | 243.3.f.b | 30 | ||
27.f | odd | 18 | 1 | 729.3.b.a | 30 | ||
36.h | even | 6 | 1 | 432.3.bc.a | 30 | ||
108.j | odd | 18 | 1 | 432.3.bc.a | 30 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
27.3.f.a | ✓ | 30 | 9.d | odd | 6 | 1 | |
27.3.f.a | ✓ | 30 | 27.e | even | 9 | 1 | |
81.3.f.a | 30 | 9.c | even | 3 | 1 | ||
81.3.f.a | 30 | 27.f | odd | 18 | 1 | ||
243.3.f.a | 30 | 1.a | even | 1 | 1 | trivial | |
243.3.f.a | 30 | 27.f | odd | 18 | 1 | inner | |
243.3.f.b | 30 | 9.c | even | 3 | 1 | ||
243.3.f.b | 30 | 27.f | odd | 18 | 1 | ||
243.3.f.c | 30 | 9.d | odd | 6 | 1 | ||
243.3.f.c | 30 | 27.e | even | 9 | 1 | ||
243.3.f.d | 30 | 3.b | odd | 2 | 1 | ||
243.3.f.d | 30 | 27.e | even | 9 | 1 | ||
432.3.bc.a | 30 | 36.h | even | 6 | 1 | ||
432.3.bc.a | 30 | 108.j | odd | 18 | 1 | ||
729.3.b.a | 30 | 27.e | even | 9 | 1 | ||
729.3.b.a | 30 | 27.f | odd | 18 | 1 |
Hecke kernels
This newform subspace can be constructed as the kernel of the linear operator \( T_{2}^{30} + 3 T_{2}^{29} + 3 T_{2}^{28} - 3 T_{2}^{27} - 36 T_{2}^{26} - 36 T_{2}^{25} - 1371 T_{2}^{24} + \cdots + 682587 \) acting on \(S_{3}^{\mathrm{new}}(243, [\chi])\).