Properties

Label 1890.2.i.i
Level $1890$
Weight $2$
Character orbit 1890.i
Analytic conductor $15.092$
Analytic rank $0$
Dimension $16$
CM no
Inner twists $2$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [1890,2,Mod(991,1890)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1890, base_ring=CyclotomicField(6))
 
chi = DirichletCharacter(H, H._module([4, 0, 4]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("1890.991");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 1890 = 2 \cdot 3^{3} \cdot 5 \cdot 7 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 1890.i (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: \(15.0917259820\)
Analytic rank: \(0\)
Dimension: \(16\)
Relative dimension: \(8\) over \(\Q(\zeta_{3})\)
Coefficient field: \(\mathbb{Q}[x]/(x^{16} - \cdots)\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{16} - x^{15} + 2 x^{14} - 4 x^{13} + 5 x^{12} + 2 x^{11} - 35 x^{10} + 81 x^{9} - 66 x^{8} + \cdots + 6561 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{13}]\)
Coefficient ring index: \( 3^{5} \)
Twist minimal: no (minimal twist has level 630)
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 \(1,\beta_1,\ldots,\beta_{15}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + q^{2} + q^{4} + \beta_{4} q^{5} + (\beta_{13} - \beta_{4} + \beta_{2} - 1) q^{7} + q^{8}+O(q^{10}) \) Copy content Toggle raw display \( q + q^{2} + q^{4} + \beta_{4} q^{5} + (\beta_{13} - \beta_{4} + \beta_{2} - 1) q^{7} + q^{8} + \beta_{4} q^{10} + ( - \beta_{14} + \beta_{8} + \beta_{5} + \cdots - 1) q^{11}+ \cdots + (2 \beta_{15} - \beta_{13} + \cdots + \beta_1) q^{98}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 16 q + 16 q^{2} + 16 q^{4} - 8 q^{5} + 4 q^{7} + 16 q^{8}+O(q^{10}) \) Copy content Toggle raw display \( 16 q + 16 q^{2} + 16 q^{4} - 8 q^{5} + 4 q^{7} + 16 q^{8} - 8 q^{10} - q^{11} + 2 q^{13} + 4 q^{14} + 16 q^{16} - 11 q^{17} - 2 q^{19} - 8 q^{20} - q^{22} - 11 q^{23} - 8 q^{25} + 2 q^{26} + 4 q^{28} - 17 q^{29} + 30 q^{31} + 16 q^{32} - 11 q^{34} + 4 q^{35} - 2 q^{37} - 2 q^{38} - 8 q^{40} - 7 q^{41} - 13 q^{43} - q^{44} - 11 q^{46} - 10 q^{47} - 14 q^{49} - 8 q^{50} + 2 q^{52} - 18 q^{53} + 2 q^{55} + 4 q^{56} - 17 q^{58} + 2 q^{59} + 54 q^{61} + 30 q^{62} + 16 q^{64} - 4 q^{65} + 20 q^{67} - 11 q^{68} + 4 q^{70} + 38 q^{71} - 8 q^{73} - 2 q^{74} - 2 q^{76} + 7 q^{77} + 50 q^{79} - 8 q^{80} - 7 q^{82} - 2 q^{83} - 11 q^{85} - 13 q^{86} - q^{88} + 6 q^{89} + 14 q^{91} - 11 q^{92} - 10 q^{94} + 4 q^{95} + 26 q^{97} - 14 q^{98}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{16} - x^{15} + 2 x^{14} - 4 x^{13} + 5 x^{12} + 2 x^{11} - 35 x^{10} + 81 x^{9} - 66 x^{8} + \cdots + 6561 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( - 44 \nu^{15} - 409 \nu^{14} + 2669 \nu^{13} - 5491 \nu^{12} + 9953 \nu^{11} - 25312 \nu^{10} + \cdots + 2823417 ) / 393660 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( 125 \nu^{15} - 518 \nu^{14} - 2660 \nu^{13} + 3988 \nu^{12} - 5975 \nu^{11} + 12361 \nu^{10} + \cdots - 684531 ) / 787320 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( - 263 \nu^{15} + 1142 \nu^{14} - 5932 \nu^{13} + 12008 \nu^{12} - 20419 \nu^{11} + 46061 \nu^{10} + \cdots - 2477871 ) / 787320 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( 53 \nu^{15} - 173 \nu^{14} + 37 \nu^{13} - 317 \nu^{12} + 1474 \nu^{11} - 899 \nu^{10} + \cdots - 170586 ) / 131220 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( - 461 \nu^{15} + 1052 \nu^{14} - 6094 \nu^{13} + 12278 \nu^{12} - 16963 \nu^{11} + 46871 \nu^{10} + \cdots - 2215431 ) / 787320 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( - 559 \nu^{15} - 86 \nu^{14} - 6476 \nu^{13} + 2116 \nu^{12} + 5653 \nu^{11} + 32197 \nu^{10} + \cdots - 9843687 ) / 787320 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( - 667 \nu^{15} + 1570 \nu^{14} - 1328 \nu^{13} + 2620 \nu^{12} - 9611 \nu^{11} + 17905 \nu^{10} + \cdots - 2810295 ) / 787320 \) Copy content Toggle raw display
\(\beta_{8}\)\(=\) \( ( - 397 \nu^{15} + 697 \nu^{14} + 2137 \nu^{13} - 287 \nu^{12} - 476 \nu^{11} - 27149 \nu^{10} + \cdots + 3875364 ) / 393660 \) Copy content Toggle raw display
\(\beta_{9}\)\(=\) \( ( - 29 \nu^{15} + 5 \nu^{14} - 7 \nu^{13} - 67 \nu^{12} + 32 \nu^{11} - 421 \nu^{10} + 643 \nu^{9} + \cdots - 26244 ) / 26244 \) Copy content Toggle raw display
\(\beta_{10}\)\(=\) \( ( 107 \nu^{15} - 312 \nu^{14} + 578 \nu^{13} - 1078 \nu^{12} + 1781 \nu^{11} - 2041 \nu^{10} + \cdots + 64881 ) / 87480 \) Copy content Toggle raw display
\(\beta_{11}\)\(=\) \( ( - 905 \nu^{15} + 5402 \nu^{14} - 5380 \nu^{13} + 7448 \nu^{12} - 31405 \nu^{11} + 37811 \nu^{10} + \cdots - 443961 ) / 787320 \) Copy content Toggle raw display
\(\beta_{12}\)\(=\) \( ( - 937 \nu^{15} - 482 \nu^{14} + 292 \nu^{13} + 8452 \nu^{12} - 3941 \nu^{11} + 4459 \nu^{10} + \cdots - 1983609 ) / 787320 \) Copy content Toggle raw display
\(\beta_{13}\)\(=\) \( ( - 503 \nu^{15} + 905 \nu^{14} + 1193 \nu^{13} - 55 \nu^{12} + 4346 \nu^{11} - 24115 \nu^{10} + \cdots + 3171150 ) / 393660 \) Copy content Toggle raw display
\(\beta_{14}\)\(=\) \( ( - 773 \nu^{15} - 427 \nu^{14} - 2227 \nu^{13} + 6677 \nu^{12} - 1504 \nu^{11} + 7619 \nu^{10} + \cdots - 2169504 ) / 393660 \) Copy content Toggle raw display
\(\beta_{15}\)\(=\) \( ( 94 \nu^{15} - 21 \nu^{14} + 271 \nu^{13} - 899 \nu^{12} + 1057 \nu^{11} - 1718 \nu^{10} + \cdots + 376893 ) / 43740 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( -\beta_{13} - \beta_{12} - \beta_{11} - \beta_{9} + 2\beta_{8} + \beta_{7} + \beta_{6} + \beta_{5} - \beta_{4} - \beta_{2} + 1 ) / 3 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( \beta_{15} + \beta_{14} - 2 \beta_{13} - 2 \beta_{10} + \beta_{8} + 2 \beta_{7} - \beta_{6} + \beta_{5} + \cdots + 1 ) / 3 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( - 2 \beta_{15} - 3 \beta_{14} - 2 \beta_{11} - 3 \beta_{10} - \beta_{8} - \beta_{7} + 3 \beta_{5} + \cdots - 4 ) / 3 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( ( \beta_{15} + \beta_{14} - 2 \beta_{13} + 3 \beta_{12} + 3 \beta_{11} + \beta_{10} + \beta_{8} - 7 \beta_{7} + \cdots + 4 ) / 3 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( - 5 \beta_{15} - 3 \beta_{14} - 3 \beta_{13} - 3 \beta_{12} - 2 \beta_{11} - 6 \beta_{10} + 3 \beta_{9} + \cdots - 1 ) / 3 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( ( 7 \beta_{15} + 4 \beta_{14} + \beta_{13} + 9 \beta_{12} - 3 \beta_{11} - 20 \beta_{10} - 14 \beta_{8} + \cdots + 40 ) / 3 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( ( 7 \beta_{15} - 18 \beta_{14} - 3 \beta_{13} + 3 \beta_{12} - 26 \beta_{11} + 3 \beta_{10} - 12 \beta_{9} + \cdots - 61 ) / 3 \) Copy content Toggle raw display
\(\nu^{8}\)\(=\) \( ( 31 \beta_{15} + 28 \beta_{14} + 10 \beta_{13} + 9 \beta_{12} + 18 \beta_{11} - 2 \beta_{10} + 48 \beta_{9} + \cdots - 92 ) / 3 \) Copy content Toggle raw display
\(\nu^{9}\)\(=\) \( ( - 41 \beta_{15} + 15 \beta_{14} + 60 \beta_{13} - 39 \beta_{12} - 8 \beta_{11} - 39 \beta_{10} + \cdots - 295 ) / 3 \) Copy content Toggle raw display
\(\nu^{10}\)\(=\) \( ( 64 \beta_{15} + 73 \beta_{14} + 25 \beta_{13} + 129 \beta_{12} + 138 \beta_{11} + 145 \beta_{10} + \cdots + 112 ) / 3 \) Copy content Toggle raw display
\(\nu^{11}\)\(=\) \( ( - 32 \beta_{15} + 42 \beta_{14} + 105 \beta_{13} - 129 \beta_{12} - 20 \beta_{11} + 102 \beta_{10} + \cdots + 251 ) / 3 \) Copy content Toggle raw display
\(\nu^{12}\)\(=\) \( ( 295 \beta_{15} + 616 \beta_{14} - 17 \beta_{13} - 27 \beta_{12} + 24 \beta_{11} - 389 \beta_{10} + \cdots + 949 ) / 3 \) Copy content Toggle raw display
\(\nu^{13}\)\(=\) \( ( 151 \beta_{15} - 486 \beta_{14} - 318 \beta_{13} + 507 \beta_{12} - 404 \beta_{11} + 192 \beta_{10} + \cdots - 1204 ) / 3 \) Copy content Toggle raw display
\(\nu^{14}\)\(=\) \( ( 679 \beta_{15} + 100 \beta_{14} + 487 \beta_{13} + 846 \beta_{12} + 1170 \beta_{11} + 385 \beta_{10} + \cdots + 205 ) / 3 \) Copy content Toggle raw display
\(\nu^{15}\)\(=\) \( ( - 1256 \beta_{15} + 465 \beta_{14} + 6 \beta_{13} - 1434 \beta_{12} + 649 \beta_{11} - 1173 \beta_{10} + \cdots - 2338 ) / 3 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/1890\mathbb{Z}\right)^\times\).

\(n\) \(757\) \(1081\) \(1541\)
\(\chi(n)\) \(1\) \(-1 - \beta_{4}\) \(-1 - \beta_{4}\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
991.1
0.702194 + 1.58333i
−1.03843 1.38624i
1.67659 0.434811i
1.52536 + 0.820531i
−0.803168 1.53458i
0.748691 1.56188i
−0.579249 + 1.63232i
−1.73198 + 0.0153002i
0.702194 1.58333i
−1.03843 + 1.38624i
1.67659 + 0.434811i
1.52536 0.820531i
−0.803168 + 1.53458i
0.748691 + 1.56188i
−0.579249 1.63232i
−1.73198 0.0153002i
1.00000 0 1.00000 −0.500000 + 0.866025i 0 −2.52336 0.795395i 1.00000 0 −0.500000 + 0.866025i
991.2 1.00000 0 1.00000 −0.500000 + 0.866025i 0 −1.52280 2.16358i 1.00000 0 −0.500000 + 0.866025i
991.3 1.00000 0 1.00000 −0.500000 + 0.866025i 0 −1.09594 + 2.40809i 1.00000 0 −0.500000 + 0.866025i
991.4 1.00000 0 1.00000 −0.500000 + 0.866025i 0 0.226513 2.63604i 1.00000 0 −0.500000 + 0.866025i
991.5 1.00000 0 1.00000 −0.500000 + 0.866025i 0 0.832221 + 2.51146i 1.00000 0 −0.500000 + 0.866025i
991.6 1.00000 0 1.00000 −0.500000 + 0.866025i 0 1.01860 2.44181i 1.00000 0 −0.500000 + 0.866025i
991.7 1.00000 0 1.00000 −0.500000 + 0.866025i 0 2.48140 0.917950i 1.00000 0 −0.500000 + 0.866025i
991.8 1.00000 0 1.00000 −0.500000 + 0.866025i 0 2.58337 + 0.571125i 1.00000 0 −0.500000 + 0.866025i
1171.1 1.00000 0 1.00000 −0.500000 0.866025i 0 −2.52336 + 0.795395i 1.00000 0 −0.500000 0.866025i
1171.2 1.00000 0 1.00000 −0.500000 0.866025i 0 −1.52280 + 2.16358i 1.00000 0 −0.500000 0.866025i
1171.3 1.00000 0 1.00000 −0.500000 0.866025i 0 −1.09594 2.40809i 1.00000 0 −0.500000 0.866025i
1171.4 1.00000 0 1.00000 −0.500000 0.866025i 0 0.226513 + 2.63604i 1.00000 0 −0.500000 0.866025i
1171.5 1.00000 0 1.00000 −0.500000 0.866025i 0 0.832221 2.51146i 1.00000 0 −0.500000 0.866025i
1171.6 1.00000 0 1.00000 −0.500000 0.866025i 0 1.01860 + 2.44181i 1.00000 0 −0.500000 0.866025i
1171.7 1.00000 0 1.00000 −0.500000 0.866025i 0 2.48140 + 0.917950i 1.00000 0 −0.500000 0.866025i
1171.8 1.00000 0 1.00000 −0.500000 0.866025i 0 2.58337 0.571125i 1.00000 0 −0.500000 0.866025i
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 991.8
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
63.h even 3 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 1890.2.i.i 16
3.b odd 2 1 630.2.i.i 16
7.c even 3 1 1890.2.l.i 16
9.c even 3 1 1890.2.l.i 16
9.d odd 6 1 630.2.l.i yes 16
21.h odd 6 1 630.2.l.i yes 16
63.h even 3 1 inner 1890.2.i.i 16
63.j odd 6 1 630.2.i.i 16
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
630.2.i.i 16 3.b odd 2 1
630.2.i.i 16 63.j odd 6 1
630.2.l.i yes 16 9.d odd 6 1
630.2.l.i yes 16 21.h odd 6 1
1890.2.i.i 16 1.a even 1 1 trivial
1890.2.i.i 16 63.h even 3 1 inner
1890.2.l.i 16 7.c even 3 1
1890.2.l.i 16 9.c even 3 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(1890, [\chi])\):

\( T_{11}^{16} + T_{11}^{15} + 53 T_{11}^{14} - 116 T_{11}^{13} + 2018 T_{11}^{12} - 4688 T_{11}^{11} + \cdots + 2916 \) Copy content Toggle raw display
\( T_{13}^{16} - 2 T_{13}^{15} + 54 T_{13}^{14} - 8 T_{13}^{13} + 1834 T_{13}^{12} + 477 T_{13}^{11} + \cdots + 2298256 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( (T - 1)^{16} \) Copy content Toggle raw display
$3$ \( T^{16} \) Copy content Toggle raw display
$5$ \( (T^{2} + T + 1)^{8} \) Copy content Toggle raw display
$7$ \( T^{16} - 4 T^{15} + \cdots + 5764801 \) Copy content Toggle raw display
$11$ \( T^{16} + T^{15} + \cdots + 2916 \) Copy content Toggle raw display
$13$ \( T^{16} - 2 T^{15} + \cdots + 2298256 \) Copy content Toggle raw display
$17$ \( T^{16} + \cdots + 8707129344 \) Copy content Toggle raw display
$19$ \( T^{16} + \cdots + 1174158756 \) Copy content Toggle raw display
$23$ \( T^{16} + \cdots + 927567936 \) Copy content Toggle raw display
$29$ \( T^{16} + \cdots + 17639292969 \) Copy content Toggle raw display
$31$ \( (T^{8} - 15 T^{7} + \cdots + 27294)^{2} \) Copy content Toggle raw display
$37$ \( T^{16} + \cdots + 147622500 \) Copy content Toggle raw display
$41$ \( T^{16} + \cdots + 86812992387801 \) Copy content Toggle raw display
$43$ \( T^{16} + \cdots + 285914281 \) Copy content Toggle raw display
$47$ \( (T^{8} + 5 T^{7} + \cdots - 423063)^{2} \) Copy content Toggle raw display
$53$ \( T^{16} + \cdots + 1238515248996 \) Copy content Toggle raw display
$59$ \( (T^{8} - T^{7} - 155 T^{6} + \cdots + 1458)^{2} \) Copy content Toggle raw display
$61$ \( (T^{8} - 27 T^{7} + \cdots - 502368)^{2} \) Copy content Toggle raw display
$67$ \( (T^{8} - 10 T^{7} + \cdots + 40406508)^{2} \) Copy content Toggle raw display
$71$ \( (T^{8} - 19 T^{7} + \cdots - 7422678)^{2} \) Copy content Toggle raw display
$73$ \( T^{16} + 8 T^{15} + \cdots + 2143296 \) Copy content Toggle raw display
$79$ \( (T^{8} - 25 T^{7} + \cdots - 406534)^{2} \) Copy content Toggle raw display
$83$ \( T^{16} + \cdots + 2857962683601 \) Copy content Toggle raw display
$89$ \( T^{16} + \cdots + 99588211776 \) Copy content Toggle raw display
$97$ \( T^{16} + \cdots + 1545178274704 \) Copy content Toggle raw display
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