Properties

Label 1026.2.h.g
Level $1026$
Weight $2$
Character orbit 1026.h
Analytic conductor $8.193$
Analytic rank $0$
Dimension $18$
CM no
Inner twists $2$

Related objects

Downloads

Learn more

Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [1026,2,Mod(505,1026)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1026, base_ring=CyclotomicField(6))
 
chi = DirichletCharacter(H, H._module([4, 4]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("1026.505");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 1026 = 2 \cdot 3^{3} \cdot 19 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 1026.h (of order \(3\), degree \(2\), 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: \(8.19265124738\)
Analytic rank: \(0\)
Dimension: \(18\)
Relative dimension: \(9\) over \(\Q(\zeta_{3})\)
Coefficient field: \(\mathbb{Q}[x]/(x^{18} + \cdots)\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{18} + 4 x^{16} - 6 x^{15} + x^{14} - 21 x^{13} - 12 x^{12} + 9 x^{10} + 135 x^{9} + 27 x^{8} + \cdots + 19683 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{7}]\)
Coefficient ring index: \( 2^{4}\cdot 3^{6} \)
Twist minimal: no (minimal twist has level 342)
Sato-Tate group: $\mathrm{SU}(2)[C_{3}]$

$q$-expansion

comment: q-expansion
 
sage: f.q_expansion() # note that sage often uses an isomorphic number field
 
gp: mfcoefs(f, 20)
 

Coefficients of the \(q\)-expansion are expressed in terms of a basis \(1,\beta_1,\ldots,\beta_{17}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q - \beta_{8} q^{2} + (\beta_{8} - 1) q^{4} + \beta_{5} q^{5} + ( - \beta_{8} + \beta_{6} - \beta_{4} + 1) q^{7} + q^{8}+O(q^{10}) \) Copy content Toggle raw display \( q - \beta_{8} q^{2} + (\beta_{8} - 1) q^{4} + \beta_{5} q^{5} + ( - \beta_{8} + \beta_{6} - \beta_{4} + 1) q^{7} + q^{8} - \beta_{14} q^{10} + ( - \beta_{13} + \beta_{3}) q^{11} + ( - \beta_{14} - \beta_{8} + \beta_{6} + \cdots + 1) q^{13}+ \cdots + ( - \beta_{17} - \beta_{16} + \cdots - \beta_{3}) q^{98}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 18 q - 9 q^{2} - 9 q^{4} + 5 q^{7} + 18 q^{8}+O(q^{10}) \) Copy content Toggle raw display \( 18 q - 9 q^{2} - 9 q^{4} + 5 q^{7} + 18 q^{8} - q^{11} + q^{13} - 10 q^{14} - 9 q^{16} + 5 q^{17} + 9 q^{19} + 2 q^{22} + 2 q^{23} + 18 q^{25} - 2 q^{26} + 5 q^{28} - 18 q^{29} + 4 q^{31} - 9 q^{32} - 10 q^{34} - 6 q^{35} + 20 q^{37} - 3 q^{38} + 2 q^{41} + 7 q^{43} - q^{44} - 4 q^{46} + 38 q^{47} + 6 q^{49} - 9 q^{50} + q^{52} + 10 q^{53} + 6 q^{55} + 5 q^{56} + 9 q^{58} - 10 q^{59} - 36 q^{61} + 4 q^{62} + 18 q^{64} + 45 q^{65} + 22 q^{67} + 5 q^{68} + 12 q^{70} - 11 q^{71} + 44 q^{73} - 10 q^{74} - 6 q^{76} + 2 q^{77} + 2 q^{79} - q^{82} + 7 q^{83} + 7 q^{86} - q^{88} - q^{89} - 25 q^{91} + 2 q^{92} - 19 q^{94} - 21 q^{95} + 6 q^{98}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{18} + 4 x^{16} - 6 x^{15} + x^{14} - 21 x^{13} - 12 x^{12} + 9 x^{10} + 135 x^{9} + 27 x^{8} + \cdots + 19683 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( - 164 \nu^{17} + 831 \nu^{16} - 2204 \nu^{15} + 1587 \nu^{14} - 6086 \nu^{13} + 2337 \nu^{12} + \cdots + 7466418 ) / 2574099 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( - 118 \nu^{17} + 474 \nu^{16} - 409 \nu^{15} + 1893 \nu^{14} - 1981 \nu^{13} - 1053 \nu^{12} + \cdots + 2821230 ) / 702027 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( 44 \nu^{17} + 351 \nu^{16} - 397 \nu^{15} + 774 \nu^{14} - 2455 \nu^{13} - 282 \nu^{12} + \cdots + 2755620 ) / 234009 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( - 128 \nu^{17} - 1809 \nu^{16} + 1972 \nu^{15} - 4236 \nu^{14} + 11023 \nu^{13} + 762 \nu^{12} + \cdots - 12419973 ) / 702027 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( 18 \nu^{17} - 85 \nu^{16} + 144 \nu^{15} - 267 \nu^{14} + 411 \nu^{13} - 57 \nu^{12} + 15 \nu^{11} + \cdots - 475308 ) / 78003 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( 1832 \nu^{17} - 15738 \nu^{16} + 19523 \nu^{15} - 39879 \nu^{14} + 80051 \nu^{13} + \cdots - 86769225 ) / 7722297 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( 82 \nu^{17} + 445 \nu^{16} - 521 \nu^{15} + 1102 \nu^{14} - 3014 \nu^{13} + 418 \nu^{12} + \cdots + 3667599 ) / 234009 \) Copy content Toggle raw display
\(\beta_{8}\)\(=\) \( ( - 3248 \nu^{17} + 3348 \nu^{16} - 6368 \nu^{15} + 15600 \nu^{14} + 9073 \nu^{13} + 16881 \nu^{12} + \cdots - 5006043 ) / 7722297 \) Copy content Toggle raw display
\(\beta_{9}\)\(=\) \( ( 323 \nu^{17} - 699 \nu^{16} + 1193 \nu^{15} - 3204 \nu^{14} + 2150 \nu^{13} - 3252 \nu^{12} + \cdots - 2427570 ) / 702027 \) Copy content Toggle raw display
\(\beta_{10}\)\(=\) \( ( - 4568 \nu^{17} - 13647 \nu^{16} + 14389 \nu^{15} - 12879 \nu^{14} + 94180 \nu^{13} + \cdots - 112540833 ) / 7722297 \) Copy content Toggle raw display
\(\beta_{11}\)\(=\) \( ( - 460 \nu^{17} - 1014 \nu^{16} + 707 \nu^{15} - 738 \nu^{14} + 6902 \nu^{13} + 3561 \nu^{12} + \cdots - 8194689 ) / 702027 \) Copy content Toggle raw display
\(\beta_{12}\)\(=\) \( ( - 481 \nu^{17} - 2502 \nu^{16} + 3107 \nu^{15} - 5295 \nu^{14} + 16106 \nu^{13} + 1434 \nu^{12} + \cdots - 19210608 ) / 702027 \) Copy content Toggle raw display
\(\beta_{13}\)\(=\) \( ( - 6235 \nu^{17} + 14928 \nu^{16} - 21007 \nu^{15} + 52014 \nu^{14} - 30850 \nu^{13} + \cdots + 31893021 ) / 7722297 \) Copy content Toggle raw display
\(\beta_{14}\)\(=\) \( ( - 3391 \nu^{17} + 477 \nu^{16} - 5620 \nu^{15} + 8307 \nu^{14} + 17675 \nu^{13} + 14505 \nu^{12} + \cdots - 22447368 ) / 2574099 \) Copy content Toggle raw display
\(\beta_{15}\)\(=\) \( ( - 10619 \nu^{17} - 783 \nu^{16} - 12623 \nu^{15} + 29226 \nu^{14} + 49204 \nu^{13} + \cdots - 61981767 ) / 7722297 \) Copy content Toggle raw display
\(\beta_{16}\)\(=\) \( ( - 3837 \nu^{17} + 1541 \nu^{16} - 5079 \nu^{15} + 13019 \nu^{14} + 23655 \nu^{13} + \cdots - 29043360 ) / 2574099 \) Copy content Toggle raw display
\(\beta_{17}\)\(=\) \( ( 12686 \nu^{17} - 19122 \nu^{16} + 40061 \nu^{15} - 82359 \nu^{14} + 27392 \nu^{13} + \cdots - 36131427 ) / 7722297 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_{11} - \beta_{10} - \beta_1 ) / 3 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( -\beta_{17} + \beta_{15} - 2\beta_{14} - \beta_{12} - 2\beta_{7} + \beta_{5} - \beta_{2} ) / 3 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( 3 \beta_{13} + \beta_{11} + 2 \beta_{10} + 3 \beta_{9} - 3 \beta_{8} + 3 \beta_{6} - 6 \beta_{4} + \cdots + 6 ) / 3 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( ( - \beta_{17} + 6 \beta_{16} - 3 \beta_{15} - 2 \beta_{14} - 3 \beta_{13} + \beta_{12} + 5 \beta_{11} + \cdots + 9 ) / 3 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( 3 \beta_{17} + 4 \beta_{15} - 6 \beta_{14} + 3 \beta_{13} - 2 \beta_{12} + 2 \beta_{11} - 3 \beta_{10} + \cdots - 12 ) / 3 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( ( - 4 \beta_{17} - 4 \beta_{15} + \beta_{14} + 9 \beta_{13} - 3 \beta_{12} + \beta_{11} + 7 \beta_{10} + \cdots + 27 ) / 3 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( ( 6 \beta_{17} + 9 \beta_{16} + 8 \beta_{15} - 3 \beta_{14} - 15 \beta_{13} + 14 \beta_{12} - 5 \beta_{10} + \cdots - 3 ) / 3 \) Copy content Toggle raw display
\(\nu^{8}\)\(=\) \( ( - 22 \beta_{17} - 6 \beta_{16} - 35 \beta_{15} - 17 \beta_{14} - 6 \beta_{13} + 5 \beta_{12} + \cdots - 63 ) / 3 \) Copy content Toggle raw display
\(\nu^{9}\)\(=\) \( ( 36 \beta_{17} - 72 \beta_{16} - 15 \beta_{15} + 36 \beta_{14} + 84 \beta_{13} - 78 \beta_{12} + \cdots - 120 ) / 3 \) Copy content Toggle raw display
\(\nu^{10}\)\(=\) \( ( 53 \beta_{17} + 150 \beta_{16} - 39 \beta_{15} + 52 \beta_{14} - 210 \beta_{13} - 8 \beta_{12} + \cdots + 144 ) / 3 \) Copy content Toggle raw display
\(\nu^{11}\)\(=\) \( ( 210 \beta_{17} - 140 \beta_{15} + 219 \beta_{14} + 3 \beta_{13} - 2 \beta_{12} + 83 \beta_{11} + \cdots + 312 ) / 3 \) Copy content Toggle raw display
\(\nu^{12}\)\(=\) \( ( - 103 \beta_{17} - 243 \beta_{16} - 184 \beta_{15} - 197 \beta_{14} + 198 \beta_{13} - 165 \beta_{12} + \cdots - 405 ) / 3 \) Copy content Toggle raw display
\(\nu^{13}\)\(=\) \( ( - 111 \beta_{17} + 144 \beta_{16} - 91 \beta_{15} - 183 \beta_{14} - 150 \beta_{13} - 454 \beta_{12} + \cdots + 1725 ) / 3 \) Copy content Toggle raw display
\(\nu^{14}\)\(=\) \( ( 230 \beta_{17} + 534 \beta_{16} - 656 \beta_{15} + 379 \beta_{14} - 6 \beta_{13} - 733 \beta_{12} + \cdots + 477 ) / 3 \) Copy content Toggle raw display
\(\nu^{15}\)\(=\) \( ( - 135 \beta_{17} + 171 \beta_{16} + 462 \beta_{15} - 2493 \beta_{14} + 381 \beta_{13} - 186 \beta_{12} + \cdots + 1527 ) / 3 \) Copy content Toggle raw display
\(\nu^{16}\)\(=\) \( ( 791 \beta_{17} + 1554 \beta_{16} - 831 \beta_{15} - 1199 \beta_{14} + 2436 \beta_{13} + 1135 \beta_{12} + \cdots + 4248 ) / 3 \) Copy content Toggle raw display
\(\nu^{17}\)\(=\) \( ( - 231 \beta_{17} + 8694 \beta_{16} - 6026 \beta_{15} - 1122 \beta_{14} - 1617 \beta_{13} - 3800 \beta_{12} + \cdots + 9897 ) / 3 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/1026\mathbb{Z}\right)^\times\).

\(n\) \(191\) \(325\)
\(\chi(n)\) \(-\beta_{8}\) \(-\beta_{8}\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
505.1
−1.24302 1.20619i
1.73011 + 0.0819856i
−0.238928 + 1.71549i
0.837220 + 1.51627i
−1.68875 + 0.384872i
0.339544 1.69844i
−0.614525 1.61937i
1.55117 0.770640i
−0.672818 + 1.59603i
−1.24302 + 1.20619i
1.73011 0.0819856i
−0.238928 1.71549i
0.837220 1.51627i
−1.68875 0.384872i
0.339544 + 1.69844i
−0.614525 + 1.61937i
1.55117 + 0.770640i
−0.672818 1.59603i
−0.500000 0.866025i 0 −0.500000 + 0.866025i −3.94363 0 1.02646 1.77787i 1.00000 0 1.97181 + 3.41528i
505.2 −0.500000 0.866025i 0 −0.500000 + 0.866025i −2.93688 0 0.360554 0.624499i 1.00000 0 1.46844 + 2.54341i
505.3 −0.500000 0.866025i 0 −0.500000 + 0.866025i −1.41232 0 1.53389 2.65678i 1.00000 0 0.706161 + 1.22311i
505.4 −0.500000 0.866025i 0 −0.500000 + 0.866025i −0.730937 0 −1.79034 + 3.10095i 1.00000 0 0.365468 + 0.633010i
505.5 −0.500000 0.866025i 0 −0.500000 + 0.866025i −0.149615 0 −0.733568 + 1.27058i 1.00000 0 0.0748074 + 0.129570i
505.6 −0.500000 0.866025i 0 −0.500000 + 0.866025i 0.935186 0 −0.568176 + 0.984110i 1.00000 0 −0.467593 0.809895i
505.7 −0.500000 0.866025i 0 −0.500000 + 0.866025i 1.57955 0 2.31561 4.01075i 1.00000 0 −0.789777 1.36793i
505.8 −0.500000 0.866025i 0 −0.500000 + 0.866025i 2.39847 0 0.959469 1.66185i 1.00000 0 −1.19924 2.07714i
505.9 −0.500000 0.866025i 0 −0.500000 + 0.866025i 4.26017 0 −0.603898 + 1.04598i 1.00000 0 −2.13008 3.68941i
577.1 −0.500000 + 0.866025i 0 −0.500000 0.866025i −3.94363 0 1.02646 + 1.77787i 1.00000 0 1.97181 3.41528i
577.2 −0.500000 + 0.866025i 0 −0.500000 0.866025i −2.93688 0 0.360554 + 0.624499i 1.00000 0 1.46844 2.54341i
577.3 −0.500000 + 0.866025i 0 −0.500000 0.866025i −1.41232 0 1.53389 + 2.65678i 1.00000 0 0.706161 1.22311i
577.4 −0.500000 + 0.866025i 0 −0.500000 0.866025i −0.730937 0 −1.79034 3.10095i 1.00000 0 0.365468 0.633010i
577.5 −0.500000 + 0.866025i 0 −0.500000 0.866025i −0.149615 0 −0.733568 1.27058i 1.00000 0 0.0748074 0.129570i
577.6 −0.500000 + 0.866025i 0 −0.500000 0.866025i 0.935186 0 −0.568176 0.984110i 1.00000 0 −0.467593 + 0.809895i
577.7 −0.500000 + 0.866025i 0 −0.500000 0.866025i 1.57955 0 2.31561 + 4.01075i 1.00000 0 −0.789777 + 1.36793i
577.8 −0.500000 + 0.866025i 0 −0.500000 0.866025i 2.39847 0 0.959469 + 1.66185i 1.00000 0 −1.19924 + 2.07714i
577.9 −0.500000 + 0.866025i 0 −0.500000 0.866025i 4.26017 0 −0.603898 1.04598i 1.00000 0 −2.13008 + 3.68941i
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 505.9
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
171.g even 3 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 1026.2.h.g 18
3.b odd 2 1 342.2.h.g yes 18
9.c even 3 1 1026.2.f.g 18
9.d odd 6 1 342.2.f.g 18
19.c even 3 1 1026.2.f.g 18
57.h odd 6 1 342.2.f.g 18
171.g even 3 1 inner 1026.2.h.g 18
171.n odd 6 1 342.2.h.g yes 18
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
342.2.f.g 18 9.d odd 6 1
342.2.f.g 18 57.h odd 6 1
342.2.h.g yes 18 3.b odd 2 1
342.2.h.g yes 18 171.n odd 6 1
1026.2.f.g 18 9.c even 3 1
1026.2.f.g 18 19.c even 3 1
1026.2.h.g 18 1.a even 1 1 trivial
1026.2.h.g 18 171.g even 3 1 inner

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{5}^{9} - 27T_{5}^{7} - 2T_{5}^{6} + 192T_{5}^{5} - 9T_{5}^{4} - 387T_{5}^{3} + 189T_{5} + 27 \) acting on \(S_{2}^{\mathrm{new}}(1026, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( (T^{2} + T + 1)^{9} \) Copy content Toggle raw display
$3$ \( T^{18} \) Copy content Toggle raw display
$5$ \( (T^{9} - 27 T^{7} + \cdots + 27)^{2} \) Copy content Toggle raw display
$7$ \( T^{18} - 5 T^{17} + \cdots + 84681 \) Copy content Toggle raw display
$11$ \( T^{18} + T^{17} + \cdots + 81 \) Copy content Toggle raw display
$13$ \( T^{18} - T^{17} + \cdots + 3154176 \) Copy content Toggle raw display
$17$ \( T^{18} + \cdots + 130439241 \) Copy content Toggle raw display
$19$ \( T^{18} + \cdots + 322687697779 \) Copy content Toggle raw display
$23$ \( T^{18} - 2 T^{17} + \cdots + 2985984 \) Copy content Toggle raw display
$29$ \( (T^{9} + 9 T^{8} + \cdots + 800577)^{2} \) Copy content Toggle raw display
$31$ \( T^{18} + \cdots + 2690808129 \) Copy content Toggle raw display
$37$ \( (T^{9} - 10 T^{8} + \cdots - 2416)^{2} \) Copy content Toggle raw display
$41$ \( (T^{9} - T^{8} - 86 T^{7} + \cdots - 1296)^{2} \) Copy content Toggle raw display
$43$ \( T^{18} + \cdots + 89913620736 \) Copy content Toggle raw display
$47$ \( (T^{9} - 19 T^{8} + \cdots + 1256751)^{2} \) Copy content Toggle raw display
$53$ \( T^{18} + \cdots + 20372138361 \) Copy content Toggle raw display
$59$ \( (T^{9} + 5 T^{8} + \cdots - 3722193)^{2} \) Copy content Toggle raw display
$61$ \( (T^{9} + 18 T^{8} + \cdots - 225347)^{2} \) Copy content Toggle raw display
$67$ \( T^{18} + \cdots + 344768247300096 \) Copy content Toggle raw display
$71$ \( T^{18} + \cdots + 120758121 \) Copy content Toggle raw display
$73$ \( T^{18} + \cdots + 490005727861329 \) Copy content Toggle raw display
$79$ \( T^{18} + \cdots + 28\!\cdots\!84 \) Copy content Toggle raw display
$83$ \( T^{18} + \cdots + 25101031868649 \) Copy content Toggle raw display
$89$ \( T^{18} + \cdots + 28991407990689 \) Copy content Toggle raw display
$97$ \( T^{18} + \cdots + 469410009520384 \) Copy content Toggle raw display
show more
show less