Newspace parameters
comment: Compute space of new eigenforms
[N,k,chi] = [43,2,Mod(9,43)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(43, base_ring=CyclotomicField(42))
chi = DirichletCharacter(H, H._module([2]))
N = Newforms(chi, 2, names="a")
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("43.9");
S:= CuspForms(chi, 2);
N := Newforms(S);
Level: | \( N \) | \(=\) | \( 43 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 43.g (of order \(21\), degree \(12\), 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: | \(0.343356728692\) |
Analytic rank: | \(0\) |
Dimension: | \(36\) |
Relative dimension: | \(3\) over \(\Q(\zeta_{21})\) |
Twist minimal: | yes |
Sato-Tate group: | $\mathrm{SU}(2)[C_{21}]$ |
$q$-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 | \( a_{2} \) | \( a_{3} \) | \( a_{4} \) | \( a_{5} \) | \( a_{6} \) | \( a_{7} \) | \( a_{8} \) | \( a_{9} \) | \( a_{10} \) | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
9.1 | −1.44188 | − | 1.80806i | 2.66973 | + | 0.402397i | −0.745019 | + | 3.26414i | −2.09843 | − | 1.43068i | −3.12187 | − | 5.40724i | −1.09365 | + | 1.89425i | 2.80884 | − | 1.35267i | 4.09883 | + | 1.26432i | 0.438918 | + | 5.85695i |
9.2 | −1.11243 | − | 1.39495i | −2.93359 | − | 0.442167i | −0.263330 | + | 1.15372i | −0.492700 | − | 0.335917i | 2.64662 | + | 4.58409i | 2.18154 | − | 3.77854i | −1.31271 | + | 0.632167i | 5.54371 | + | 1.71001i | 0.0795092 | + | 1.06098i |
9.3 | 1.06016 | + | 1.32939i | −1.14296 | − | 0.172273i | −0.198316 | + | 0.868879i | −1.45700 | − | 0.993363i | −0.982695 | − | 1.70208i | −0.297283 | + | 0.514909i | 1.69861 | − | 0.818009i | −1.59004 | − | 0.490464i | −0.224073 | − | 2.99004i |
10.1 | −0.483758 | − | 2.11948i | −0.240184 | − | 0.222858i | −2.45624 | + | 1.18286i | 0.0260188 | − | 0.00392170i | −0.356153 | + | 0.616875i | 1.56464 | + | 2.71003i | 0.984367 | + | 1.23436i | −0.216168 | − | 2.88456i | −0.0208988 | − | 0.0532492i |
10.2 | 0.188565 | + | 0.826155i | −0.0129300 | − | 0.0119973i | 1.15496 | − | 0.556200i | −3.39819 | + | 0.512194i | 0.00747346 | − | 0.0129444i | −0.134521 | − | 0.232998i | 1.73398 | + | 2.17435i | −0.224167 | − | 2.99130i | −1.06393 | − | 2.71085i |
10.3 | 0.581275 | + | 2.54673i | −1.40948 | − | 1.30780i | −4.34603 | + | 2.09294i | 2.95419 | − | 0.445272i | 2.51133 | − | 4.34976i | −0.339884 | − | 0.588696i | −4.59900 | − | 5.76696i | 0.0520854 | + | 0.695032i | 2.85118 | + | 7.26470i |
13.1 | −0.483758 | + | 2.11948i | −0.240184 | + | 0.222858i | −2.45624 | − | 1.18286i | 0.0260188 | + | 0.00392170i | −0.356153 | − | 0.616875i | 1.56464 | − | 2.71003i | 0.984367 | − | 1.23436i | −0.216168 | + | 2.88456i | −0.0208988 | + | 0.0532492i |
13.2 | 0.188565 | − | 0.826155i | −0.0129300 | + | 0.0119973i | 1.15496 | + | 0.556200i | −3.39819 | − | 0.512194i | 0.00747346 | + | 0.0129444i | −0.134521 | + | 0.232998i | 1.73398 | − | 2.17435i | −0.224167 | + | 2.99130i | −1.06393 | + | 2.71085i |
13.3 | 0.581275 | − | 2.54673i | −1.40948 | + | 1.30780i | −4.34603 | − | 2.09294i | 2.95419 | + | 0.445272i | 2.51133 | + | 4.34976i | −0.339884 | + | 0.588696i | −4.59900 | + | 5.76696i | 0.0520854 | − | 0.695032i | 2.85118 | − | 7.26470i |
14.1 | −2.05399 | + | 0.989151i | −0.239882 | − | 3.20100i | 1.99349 | − | 2.49975i | −0.131558 | + | 0.0405802i | 3.65898 | + | 6.33755i | 0.934721 | − | 1.61898i | −0.607386 | + | 2.66113i | −7.22235 | + | 1.08859i | 0.230079 | − | 0.213482i |
14.2 | −0.982954 | + | 0.473366i | 0.109070 | + | 1.45544i | −0.504856 | + | 0.633069i | 1.29085 | − | 0.398175i | −0.796166 | − | 1.37900i | −0.108163 | + | 0.187343i | 0.682116 | − | 2.98855i | 0.860089 | − | 0.129637i | −1.08036 | + | 1.00243i |
14.3 | 0.993512 | − | 0.478450i | −0.0482746 | − | 0.644179i | −0.488828 | + | 0.612971i | −3.17479 | + | 0.979294i | −0.356169 | − | 0.616903i | 1.23273 | − | 2.13515i | −0.683135 | + | 2.99301i | 2.55386 | − | 0.384932i | −2.68565 | + | 2.49192i |
15.1 | −1.72039 | + | 2.15730i | −0.528255 | + | 1.34597i | −1.24917 | − | 5.47296i | 0.0684907 | + | 0.913945i | −1.99486 | − | 3.45520i | −0.971539 | + | 1.68276i | 8.98382 | + | 4.32638i | 0.666571 | + | 0.618487i | −2.08949 | − | 1.42459i |
15.2 | −0.651405 | + | 0.816837i | 0.922165 | − | 2.34964i | 0.202149 | + | 0.885672i | −0.0373507 | − | 0.498411i | 1.31857 | + | 2.28383i | −1.65334 | + | 2.86367i | −2.73775 | − | 1.31843i | −2.47126 | − | 2.29299i | 0.431451 | + | 0.294158i |
15.3 | −0.0594739 | + | 0.0745779i | −0.863608 | + | 2.20044i | 0.443017 | + | 1.94098i | −0.284956 | − | 3.80248i | −0.112742 | − | 0.195275i | 1.30981 | − | 2.26866i | −0.342987 | − | 0.165174i | −1.89695 | − | 1.76011i | 0.300528 | + | 0.204897i |
17.1 | −0.515822 | − | 2.25996i | 1.28860 | − | 0.397480i | −3.03942 | + | 1.46371i | −1.48781 | + | 3.79089i | −1.56298 | − | 2.70715i | 1.38920 | − | 2.40617i | 1.98513 | + | 2.48927i | −0.976224 | + | 0.665578i | 9.33472 | + | 1.40698i |
17.2 | −0.178150 | − | 0.780524i | −0.711521 | + | 0.219475i | 1.22446 | − | 0.589667i | 0.511972 | − | 1.30448i | 0.298063 | + | 0.516260i | −2.37928 | + | 4.12103i | −1.67671 | − | 2.10253i | −2.02062 | + | 1.37764i | −1.10939 | − | 0.167213i |
17.3 | 0.377390 | + | 1.65345i | −1.63701 | + | 0.504949i | −0.789549 | + | 0.380227i | 0.140805 | − | 0.358765i | −1.45270 | − | 2.51615i | 1.74586 | − | 3.02391i | 1.18819 | + | 1.48995i | −0.0539035 | + | 0.0367508i | 0.646339 | + | 0.0974200i |
23.1 | −1.72039 | − | 2.15730i | −0.528255 | − | 1.34597i | −1.24917 | + | 5.47296i | 0.0684907 | − | 0.913945i | −1.99486 | + | 3.45520i | −0.971539 | − | 1.68276i | 8.98382 | − | 4.32638i | 0.666571 | − | 0.618487i | −2.08949 | + | 1.42459i |
23.2 | −0.651405 | − | 0.816837i | 0.922165 | + | 2.34964i | 0.202149 | − | 0.885672i | −0.0373507 | + | 0.498411i | 1.31857 | − | 2.28383i | −1.65334 | − | 2.86367i | −2.73775 | + | 1.31843i | −2.47126 | + | 2.29299i | 0.431451 | − | 0.294158i |
See all 36 embeddings |
Inner twists
Char | Parity | Ord | Mult | Type |
---|---|---|---|---|
1.a | even | 1 | 1 | trivial |
43.g | even | 21 | 1 | inner |
Twists
By twisting character orbit | |||||||
---|---|---|---|---|---|---|---|
Char | Parity | Ord | Mult | Type | Twist | Min | Dim |
1.a | even | 1 | 1 | trivial | 43.2.g.a | ✓ | 36 |
3.b | odd | 2 | 1 | 387.2.y.c | 36 | ||
4.b | odd | 2 | 1 | 688.2.bg.c | 36 | ||
43.g | even | 21 | 1 | inner | 43.2.g.a | ✓ | 36 |
43.g | even | 21 | 1 | 1849.2.a.n | 18 | ||
43.h | odd | 42 | 1 | 1849.2.a.o | 18 | ||
129.o | odd | 42 | 1 | 387.2.y.c | 36 | ||
172.o | odd | 42 | 1 | 688.2.bg.c | 36 |
By twisted newform orbit | |||||||
---|---|---|---|---|---|---|---|
Twist | Min | Dim | Char | Parity | Ord | Mult | Type |
43.2.g.a | ✓ | 36 | 1.a | even | 1 | 1 | trivial |
43.2.g.a | ✓ | 36 | 43.g | even | 21 | 1 | inner |
387.2.y.c | 36 | 3.b | odd | 2 | 1 | ||
387.2.y.c | 36 | 129.o | odd | 42 | 1 | ||
688.2.bg.c | 36 | 4.b | odd | 2 | 1 | ||
688.2.bg.c | 36 | 172.o | odd | 42 | 1 | ||
1849.2.a.n | 18 | 43.g | even | 21 | 1 | ||
1849.2.a.o | 18 | 43.h | odd | 42 | 1 |
Hecke kernels
This newform subspace is the entire newspace \(S_{2}^{\mathrm{new}}(43, [\chi])\).