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Properties

Label 819.2.n.d
Level $819$
Weight $2$
Character orbit 819.n
Analytic conductor $6.540$
Analytic rank $0$
Dimension $12$
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] = [819,2,Mod(100,819)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(819, base_ring=CyclotomicField(6))
 
chi = DirichletCharacter(H, H._module([0, 2, 4]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("819.100");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 819 = 3^{2} \cdot 7 \cdot 13 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 819.n (of order \(3\), degree \(2\), 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: \(6.53974792554\)
Analytic rank: \(0\)
Dimension: \(12\)
Relative dimension: \(6\) over \(\Q(\zeta_{3})\)
Coefficient field: \(\mathbb{Q}[x]/(x^{12} - \cdots)\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{12} - x^{11} + 7x^{10} - 2x^{9} + 33x^{8} - 11x^{7} + 55x^{6} + 17x^{5} + 47x^{4} + x^{3} + 8x^{2} + x + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{5}]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 91)
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 \(1,\beta_1,\ldots,\beta_{11}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + ( - \beta_{11} + \beta_{5} + \beta_1) q^{2} + ( - \beta_{7} + \beta_{6}) q^{4} - \beta_{2} q^{5} + ( - \beta_{8} - \beta_{4} - \beta_{2} + \cdots + 1) q^{7}+ \cdots + ( - \beta_{10} - \beta_{6} + \beta_{5} + 1) q^{8}+O(q^{10}) \) Copy content Toggle raw display \( q + ( - \beta_{11} + \beta_{5} + \beta_1) q^{2} + ( - \beta_{7} + \beta_{6}) q^{4} - \beta_{2} q^{5} + ( - \beta_{8} - \beta_{4} - \beta_{2} + \cdots + 1) q^{7}+ \cdots + (\beta_{11} + 3 \beta_{10} - 2 \beta_{8} + \cdots - 9) q^{98}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 12 q - 2 q^{2} - 4 q^{4} - q^{5} + 9 q^{7} + 6 q^{8}+O(q^{10}) \) Copy content Toggle raw display \( 12 q - 2 q^{2} - 4 q^{4} - q^{5} + 9 q^{7} + 6 q^{8} - 8 q^{10} + 8 q^{11} - 2 q^{13} + 2 q^{14} + 8 q^{16} - 5 q^{17} + 2 q^{19} + q^{20} - 5 q^{22} + q^{23} + 7 q^{25} - 5 q^{26} - 7 q^{28} - 3 q^{29} + 16 q^{31} - 8 q^{32} + 32 q^{34} - 8 q^{35} - 13 q^{37} + 17 q^{38} - 5 q^{40} + 8 q^{41} - 11 q^{43} - 21 q^{44} + 16 q^{46} + q^{47} - 3 q^{49} - 6 q^{50} - 25 q^{52} + 2 q^{53} + 9 q^{55} + 18 q^{56} + 16 q^{58} - 13 q^{59} + 10 q^{61} - 5 q^{62} - 30 q^{64} - 19 q^{65} + 22 q^{67} - 29 q^{68} - 39 q^{70} - 6 q^{71} - 30 q^{73} + 3 q^{74} - 9 q^{76} - 11 q^{77} + 7 q^{79} - 14 q^{80} - 2 q^{82} + 54 q^{83} - q^{85} + 7 q^{86} - 4 q^{89} - 20 q^{91} - 54 q^{92} - 90 q^{94} + 6 q^{95} - 35 q^{97} - 62 q^{98}+O(q^{100}) \) Copy content Toggle raw display

Display 100 coefficients 10 coefficients

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{12} - x^{11} + 7x^{10} - 2x^{9} + 33x^{8} - 11x^{7} + 55x^{6} + 17x^{5} + 47x^{4} + x^{3} + 8x^{2} + x + 1 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( \nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( - 29696 \nu^{11} - 478424 \nu^{10} + 682506 \nu^{9} - 3846008 \nu^{8} + 2684563 \nu^{7} + \cdots - 2119374 ) / 3318773 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( - 73788 \nu^{11} - 498559 \nu^{10} + 495146 \nu^{9} - 4188508 \nu^{8} + 1631143 \nu^{7} + \cdots - 2229034 ) / 3318773 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( - 109660 \nu^{11} + 153752 \nu^{10} - 747485 \nu^{9} + 406680 \nu^{8} - 3276280 \nu^{7} + \cdots - 6198231 ) / 3318773 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( 439315 \nu^{11} - 329655 \nu^{10} + 2921453 \nu^{9} - 131145 \nu^{8} + 14090715 \nu^{7} + \cdots + 572347 ) / 3318773 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( 566698 \nu^{11} - 1732988 \nu^{10} + 5617249 \nu^{9} - 9944902 \nu^{8} + 24340355 \nu^{7} + \cdots - 6707921 ) / 3318773 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( - 572347 \nu^{11} + 1011662 \nu^{10} - 4336084 \nu^{9} + 4066147 \nu^{8} - 19018596 \nu^{7} + \cdots + 3392561 ) / 3318773 \) Copy content Toggle raw display
\(\beta_{8}\)\(=\) \( ( - 1035034 \nu^{11} + 1869572 \nu^{10} - 7924683 \nu^{9} + 7725614 \nu^{8} - 34760912 \nu^{7} + \cdots + 6345807 ) / 3318773 \) Copy content Toggle raw display
\(\beta_{9}\)\(=\) \( ( 1166290 \nu^{11} - 1650363 \nu^{10} + 8811506 \nu^{9} - 5639321 \nu^{8} + 40119354 \nu^{7} + \cdots + 566698 ) / 3318773 \) Copy content Toggle raw display
\(\beta_{10}\)\(=\) \( ( - 2686072 \nu^{11} + 3882058 \nu^{10} - 19974443 \nu^{9} + 13501144 \nu^{8} - 90433689 \nu^{7} + \cdots - 1035561 ) / 3318773 \) Copy content Toggle raw display
\(\beta_{11}\)\(=\) \( \nu^{11} - \nu^{10} + 7\nu^{9} - 2\nu^{8} + 33\nu^{7} - 11\nu^{6} + 55\nu^{5} + 17\nu^{4} + 47\nu^{3} + \nu^{2} + 8\nu + 1 \) Copy content Toggle raw display

Display \(\nu^j\) in terms of \(\beta_i\)

\(\nu\)\(=\) \( \beta_1 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( -\beta_{8} + 2\beta_{7} - \beta_{4} - 2 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( -\beta_{11} + \beta_{9} + 5\beta_{5} + \beta_{3} - \beta_{2} \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( 5\beta_{8} - 8\beta_{7} + \beta_{6} - \beta_{2} - \beta_1 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( 5\beta_{11} - \beta_{10} - 7\beta_{9} + \beta_{8} - \beta_{7} - 24\beta_{5} + \beta_{4} - 24\beta _1 + 1 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( \beta_{11} - 7\beta_{10} - 9\beta_{9} - 7\beta_{6} - 11\beta_{5} + 24\beta_{4} - \beta_{3} + 9\beta_{2} + 36 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( -11\beta_{8} + 12\beta_{7} - 9\beta_{6} - 24\beta_{3} + 40\beta_{2} + 117\beta_1 \) Copy content Toggle raw display
\(\nu^{8}\)\(=\) \( - 11 \beta_{11} + 40 \beta_{10} + 60 \beta_{9} - 117 \beta_{8} + 170 \beta_{7} + 85 \beta_{5} + \cdots - 170 \) Copy content Toggle raw display
\(\nu^{9}\)\(=\) \( - 117 \beta_{11} + 60 \beta_{10} + 217 \beta_{9} + 60 \beta_{6} + 581 \beta_{5} - 85 \beta_{4} + \cdots - 99 \) Copy content Toggle raw display
\(\nu^{10}\)\(=\) \( 581\beta_{8} - 828\beta_{7} + 217\beta_{6} + 85\beta_{3} - 362\beta_{2} - 571\beta_1 \) Copy content Toggle raw display
\(\nu^{11}\)\(=\) \( 581 \beta_{11} - 362 \beta_{10} - 1160 \beta_{9} + 571 \beta_{8} - 695 \beta_{7} - 2933 \beta_{5} + \cdots + 695 \) Copy content Toggle raw display

Display \(\beta_i\) in terms of \(\nu^j\)

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/819\mathbb{Z}\right)^\times\).

\(n\) \(92\) \(379\) \(703\)
\(\chi(n)\) \(1\) \(-1 + \beta_{7}\) \(-\beta_{7}\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
100.1
−0.181721 + 0.314749i
1.16700 − 2.02131i
0.756174 − 1.30973i
−0.437442 + 0.757672i
−1.02197 + 1.77010i
0.217953 − 0.377506i
−0.181721 − 0.314749i
1.16700 + 2.02131i
0.756174 + 1.30973i
−0.437442 − 0.757672i
−1.02197 − 1.77010i
0.217953 + 0.377506i
−1.19402 − 2.06810i 0 −1.85136 + 3.20665i 0.491140 − 0.850679i 0 2.60682 + 0.452230i 4.06616 0 −2.34572
100.2 −0.952780 − 1.65026i 0 −0.815580 + 1.41263i −0.736565 + 1.27577i 0 −2.62736 + 0.311376i −0.702849 0 2.80714
100.3 −0.425563 − 0.737096i 0 0.637793 − 1.10469i 1.72074 − 2.98041i 0 1.82097 − 1.91940i −2.78793 0 −2.92913
100.4 −0.134063 − 0.232203i 0 0.964054 − 1.66979i −1.28088 + 2.21854i 0 0.773854 + 2.53005i −1.05323 0 0.686871
100.5 0.777343 + 1.34640i 0 −0.208526 + 0.361177i −0.595756 + 1.03188i 0 0.337371 − 2.62415i 2.46099 0 −1.85243
100.6 0.929081 + 1.60921i 0 −0.726381 + 1.25813i −0.0986811 + 0.170921i 0 1.58836 + 2.11592i 1.01686 0 −0.366731
172.1 −1.19402 + 2.06810i 0 −1.85136 − 3.20665i 0.491140 + 0.850679i 0 2.60682 − 0.452230i 4.06616 0 −2.34572
172.2 −0.952780 + 1.65026i 0 −0.815580 − 1.41263i −0.736565 − 1.27577i 0 −2.62736 − 0.311376i −0.702849 0 2.80714
172.3 −0.425563 + 0.737096i 0 0.637793 + 1.10469i 1.72074 + 2.98041i 0 1.82097 + 1.91940i −2.78793 0 −2.92913
172.4 −0.134063 + 0.232203i 0 0.964054 + 1.66979i −1.28088 − 2.21854i 0 0.773854 − 2.53005i −1.05323 0 0.686871
172.5 0.777343 − 1.34640i 0 −0.208526 − 0.361177i −0.595756 − 1.03188i 0 0.337371 + 2.62415i 2.46099 0 −1.85243
172.6 0.929081 − 1.60921i 0 −0.726381 − 1.25813i −0.0986811 − 0.170921i 0 1.58836 − 2.11592i 1.01686 0 −0.366731
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 100.6
Significant digits:
Format:

Inner twists

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

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 819.2.n.d 12
3.b odd 2 1 91.2.g.b ✓ 12
7.c even 3 1 819.2.s.d 12
13.c even 3 1 819.2.s.d 12
21.c even 2 1 637.2.g.l 12
21.g even 6 1 637.2.f.j 12
21.g even 6 1 637.2.h.l 12
21.h odd 6 1 91.2.h.b yes 12
21.h odd 6 1 637.2.f.k 12
39.h odd 6 1 1183.2.e.g 12
39.i odd 6 1 91.2.h.b yes 12
39.i odd 6 1 1183.2.e.h 12
91.g even 3 1 inner 819.2.n.d 12
273.r even 6 1 637.2.f.j 12
273.s odd 6 1 637.2.f.k 12
273.s odd 6 1 1183.2.e.h 12
273.x odd 6 1 8281.2.a.ce 6
273.y even 6 1 8281.2.a.cf 6
273.bf even 6 1 637.2.g.l 12
273.bf even 6 1 8281.2.a.ca 6
273.bm odd 6 1 91.2.g.b ✓ 12
273.bm odd 6 1 8281.2.a.bz 6
273.bn even 6 1 637.2.h.l 12
273.bp odd 6 1 1183.2.e.g 12
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
91.2.g.b ✓ 12 3.b odd 2 1
91.2.g.b ✓ 12 273.bm odd 6 1
91.2.h.b yes 12 21.h odd 6 1
91.2.h.b yes 12 39.i odd 6 1
637.2.f.j 12 21.g even 6 1
637.2.f.j 12 273.r even 6 1
637.2.f.k 12 21.h odd 6 1
637.2.f.k 12 273.s odd 6 1
637.2.g.l 12 21.c even 2 1
637.2.g.l 12 273.bf even 6 1
637.2.h.l 12 21.g even 6 1
637.2.h.l 12 273.bn even 6 1
819.2.n.d 12 1.a even 1 1 trivial
819.2.n.d 12 91.g even 3 1 inner
819.2.s.d 12 7.c even 3 1
819.2.s.d 12 13.c even 3 1
1183.2.e.g 12 39.h odd 6 1
1183.2.e.g 12 273.bp odd 6 1
1183.2.e.h 12 39.i odd 6 1
1183.2.e.h 12 273.s odd 6 1
8281.2.a.bz 6 273.bm odd 6 1
8281.2.a.ca 6 273.bf even 6 1
8281.2.a.ce 6 273.x odd 6 1
8281.2.a.cf 6 273.y even 6 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(819, [\chi])\):

\( T_{2}^{12} + 2 T_{2}^{11} + 10 T_{2}^{10} + 10 T_{2}^{9} + 50 T_{2}^{8} + 48 T_{2}^{7} + 147 T_{2}^{6} + \cdots + 9 \) Copy content Toggle raw display
\( T_{11}^{6} - 4T_{11}^{5} - 21T_{11}^{4} + 76T_{11}^{3} + 81T_{11}^{2} - 207T_{11} + 81 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{12} + 2 T^{11} + \cdots + 9 \) Copy content Toggle raw display
$3$ \( T^{12} \) Copy content Toggle raw display
$5$ \( T^{12} + T^{11} + \cdots + 9 \) Copy content Toggle raw display
$7$ \( T^{12} - 9 T^{11} + \cdots + 117649 \) Copy content Toggle raw display
$11$ \( (T^{6} - 4 T^{5} - 21 T^{4} + \cdots + 81)^{2} \) Copy content Toggle raw display
$13$ \( T^{12} + 2 T^{11} + \cdots + 4826809 \) Copy content Toggle raw display
$17$ \( T^{12} + 5 T^{11} + \cdots + 81 \) Copy content Toggle raw display
$19$ \( (T^{6} - T^{5} - 64 T^{4} + \cdots + 873)^{2} \) Copy content Toggle raw display
$23$ \( T^{12} + \cdots + 594725769 \) Copy content Toggle raw display
$29$ \( T^{12} + 3 T^{11} + \cdots + 40401 \) Copy content Toggle raw display
$31$ \( T^{12} - 16 T^{11} + \cdots + 6135529 \) Copy content Toggle raw display
$37$ \( T^{12} + \cdots + 181629529 \) Copy content Toggle raw display
$41$ \( T^{12} - 8 T^{11} + \cdots + 4173849 \) Copy content Toggle raw display
$43$ \( T^{12} + 11 T^{11} + \cdots + 1369 \) Copy content Toggle raw display
$47$ \( T^{12} + \cdots + 318515409 \) Copy content Toggle raw display
$53$ \( T^{12} - 2 T^{11} + \cdots + 4761 \) Copy content Toggle raw display
$59$ \( T^{12} + 13 T^{11} + \cdots + 83229129 \) Copy content Toggle raw display
$61$ \( (T^{6} - 5 T^{5} + \cdots + 32481)^{2} \) Copy content Toggle raw display
$67$ \( (T^{6} - 11 T^{5} + \cdots - 16623)^{2} \) Copy content Toggle raw display
$71$ \( T^{12} + \cdots + 530979849 \) Copy content Toggle raw display
$73$ \( T^{12} + \cdots + 196812841 \) Copy content Toggle raw display
$79$ \( T^{12} + \cdots + 110859841 \) Copy content Toggle raw display
$83$ \( (T^{6} - 27 T^{5} + \cdots + 2673)^{2} \) Copy content Toggle raw display
$89$ \( T^{12} + \cdots + 92707461441 \) Copy content Toggle raw display
$97$ \( T^{12} + 35 T^{11} + \cdots + 15202201 \) Copy content Toggle raw display
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