Properties

Label 768.3.h.h
Level $768$
Weight $3$
Character orbit 768.h
Analytic conductor $20.926$
Analytic rank $0$
Dimension $16$
CM no
Inner twists $4$

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Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [768,3,Mod(641,768)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(768, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([0, 1, 1]))
 
N = Newforms(chi, 3, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("768.641");
 
S:= CuspForms(chi, 3);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 768 = 2^{8} \cdot 3 \)
Weight: \( k \) \(=\) \( 3 \)
Character orbit: \([\chi]\) \(=\) 768.h (of order \(2\), degree \(1\), 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: \(20.9264843029\)
Analytic rank: \(0\)
Dimension: \(16\)
Coefficient field: \(\mathbb{Q}[x]/(x^{16} - \cdots)\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{16} - 4 x^{15} + 14 x^{14} - 28 x^{13} + 50 x^{12} - 104 x^{11} - 66 x^{10} + 640 x^{9} + 555 x^{8} + \cdots + 2401 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{13}]\)
Coefficient ring index: \( 2^{34}\cdot 3^{2} \)
Twist minimal: no (minimal twist has level 384)
Sato-Tate group: $\mathrm{SU}(2)[C_{2}]$

$q$-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.

\(f(q)\) \(=\) \( q - \beta_{8} q^{3} - \beta_{11} q^{5} + ( - \beta_1 + 1) q^{7} + ( - \beta_{13} + \beta_1) q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q - \beta_{8} q^{3} - \beta_{11} q^{5} + ( - \beta_1 + 1) q^{7} + ( - \beta_{13} + \beta_1) q^{9} + ( - \beta_{11} + \beta_{10} + \cdots - \beta_{2}) q^{11}+ \cdots + ( - \beta_{14} - 4 \beta_{11} + \cdots - 10 \beta_{2}) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 16 q + 16 q^{7}+O(q^{10}) \) Copy content Toggle raw display \( 16 q + 16 q^{7} - 32 q^{15} + 80 q^{25} + 112 q^{31} + 16 q^{33} - 208 q^{39} + 144 q^{49} + 384 q^{55} + 80 q^{57} - 528 q^{63} + 160 q^{73} + 816 q^{79} + 144 q^{81} - 736 q^{87} + 192 q^{97}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{16} - 4 x^{15} + 14 x^{14} - 28 x^{13} + 50 x^{12} - 104 x^{11} - 66 x^{10} + 640 x^{9} + 555 x^{8} + \cdots + 2401 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( - 73\!\cdots\!90 \nu^{15} + \cdots - 54\!\cdots\!89 ) / 43\!\cdots\!81 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( - 99\!\cdots\!44 \nu^{15} + \cdots - 88\!\cdots\!24 ) / 53\!\cdots\!97 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( 18\!\cdots\!55 \nu^{15} + \cdots - 30\!\cdots\!38 ) / 53\!\cdots\!97 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( 36\!\cdots\!58 \nu^{15} + \cdots - 16\!\cdots\!97 ) / 69\!\cdots\!61 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( 72684469693760 \nu^{15} - 224840478635056 \nu^{14} + 808003344635480 \nu^{13} + \cdots - 18\!\cdots\!80 ) / 11\!\cdots\!97 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( - 30\!\cdots\!10 \nu^{15} + \cdots + 73\!\cdots\!59 ) / 48\!\cdots\!27 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( 35\!\cdots\!00 \nu^{15} + \cdots + 36\!\cdots\!72 ) / 48\!\cdots\!27 \) Copy content Toggle raw display
\(\beta_{8}\)\(=\) \( ( - 49\!\cdots\!07 \nu^{15} + \cdots + 94\!\cdots\!76 ) / 53\!\cdots\!97 \) Copy content Toggle raw display
\(\beta_{9}\)\(=\) \( ( 16\!\cdots\!93 \nu^{15} + \cdots - 53\!\cdots\!70 ) / 17\!\cdots\!99 \) Copy content Toggle raw display
\(\beta_{10}\)\(=\) \( ( 55\!\cdots\!36 \nu^{15} + \cdots - 79\!\cdots\!80 ) / 53\!\cdots\!97 \) Copy content Toggle raw display
\(\beta_{11}\)\(=\) \( ( 11\!\cdots\!86 \nu^{15} + \cdots - 13\!\cdots\!90 ) / 10\!\cdots\!53 \) Copy content Toggle raw display
\(\beta_{12}\)\(=\) \( ( 55\!\cdots\!10 \nu^{15} + \cdots - 79\!\cdots\!29 ) / 48\!\cdots\!27 \) Copy content Toggle raw display
\(\beta_{13}\)\(=\) \( ( 31\!\cdots\!44 \nu^{15} + \cdots - 55\!\cdots\!90 ) / 16\!\cdots\!09 \) Copy content Toggle raw display
\(\beta_{14}\)\(=\) \( ( 19\!\cdots\!87 \nu^{15} + \cdots - 49\!\cdots\!50 ) / 53\!\cdots\!97 \) Copy content Toggle raw display
\(\beta_{15}\)\(=\) \( ( 21\!\cdots\!08 \nu^{15} + \cdots - 51\!\cdots\!64 ) / 48\!\cdots\!27 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( - 6 \beta_{15} + 6 \beta_{14} - 12 \beta_{13} + 9 \beta_{12} + 6 \beta_{11} + 6 \beta_{10} + 8 \beta_{9} + \cdots + 24 ) / 96 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( 6 \beta_{13} + 12 \beta_{12} + 2 \beta_{9} + 24 \beta_{8} + 6 \beta_{6} - 21 \beta_{5} + 12 \beta_{4} + \cdots - 36 ) / 48 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( 21 \beta_{15} - 18 \beta_{14} + 18 \beta_{13} - 75 \beta_{11} + 9 \beta_{10} + 8 \beta_{9} + 21 \beta_{8} + \cdots - 60 ) / 48 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( ( - 6 \beta_{15} + 8 \beta_{13} - 29 \beta_{12} - 4 \beta_{9} + 4 \beta_{7} - 12 \beta_{6} + \cdots - 12 \beta_1 ) / 8 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( 336 \beta_{15} - 258 \beta_{14} - 816 \beta_{13} - 45 \beta_{12} + 1320 \beta_{11} - 96 \beta_{10} + \cdots + 1584 ) / 96 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( ( - 24 \beta_{15} + 102 \beta_{14} - 702 \beta_{13} + 1485 \beta_{12} + 90 \beta_{11} - 42 \beta_{10} + \cdots + 5724 ) / 48 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( ( - 5622 \beta_{15} + 4230 \beta_{14} + 2424 \beta_{13} + 3285 \beta_{12} - 4938 \beta_{11} + \cdots - 3168 ) / 96 \) Copy content Toggle raw display
\(\nu^{8}\)\(=\) \( ( 711 \beta_{13} - 241 \beta_{12} - 204 \beta_{11} + 240 \beta_{10} + 664 \beta_{9} + 1992 \beta_{8} + \cdots - 7826 ) / 4 \) Copy content Toggle raw display
\(\nu^{9}\)\(=\) \( ( 25887 \beta_{15} - 19854 \beta_{14} + 17676 \beta_{13} - 25875 \beta_{12} - 22821 \beta_{11} + \cdots - 29760 ) / 48 \) Copy content Toggle raw display
\(\nu^{10}\)\(=\) \( ( 9960 \beta_{15} - 15954 \beta_{14} - 56760 \beta_{13} - 81057 \beta_{12} + 29322 \beta_{11} + \cdots + 559224 ) / 48 \) Copy content Toggle raw display
\(\nu^{11}\)\(=\) \( ( - 213516 \beta_{15} + 164130 \beta_{14} - 643848 \beta_{13} + 307989 \beta_{12} + 1017084 \beta_{11} + \cdots + 2317416 ) / 96 \) Copy content Toggle raw display
\(\nu^{12}\)\(=\) \( ( - 26632 \beta_{15} + 39942 \beta_{14} - 34232 \beta_{13} + 240323 \beta_{12} + 54690 \beta_{9} + \cdots + 76622 \beta_1 ) / 8 \) Copy content Toggle raw display
\(\nu^{13}\)\(=\) \( ( - 1932090 \beta_{15} + 1515762 \beta_{14} + 6297528 \beta_{13} + 952899 \beta_{12} - 9514074 \beta_{11} + \cdots - 25007400 ) / 96 \) Copy content Toggle raw display
\(\nu^{14}\)\(=\) \( ( 1690992 \beta_{15} - 2026332 \beta_{14} + 7796130 \beta_{13} - 11968518 \beta_{12} - 4451004 \beta_{11} + \cdots - 52309692 ) / 48 \) Copy content Toggle raw display
\(\nu^{15}\)\(=\) \( ( 20908563 \beta_{15} - 16832388 \beta_{14} - 10200522 \beta_{13} - 24458910 \beta_{12} + 18616767 \beta_{11} + \cdots + 52459200 ) / 48 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/768\mathbb{Z}\right)^\times\).

\(n\) \(257\) \(511\) \(517\)
\(\chi(n)\) \(-1\) \(1\) \(-1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
641.1
1.38361 0.573111i
1.38361 + 0.573111i
0.463678 + 1.11942i
0.463678 1.11942i
−0.280847 + 0.678024i
−0.280847 0.678024i
0.926870 0.383922i
0.926870 + 0.383922i
−1.09921 2.65372i
−1.09921 + 2.65372i
−2.18318 0.904303i
−2.18318 + 0.904303i
1.57980 0.654376i
1.57980 + 0.654376i
1.20927 + 2.91944i
1.20927 2.91944i
0 −2.98985 0.246559i 0 6.63641 0 0.578158 0 8.87842 + 1.47435i 0
641.2 0 −2.98985 + 0.246559i 0 6.63641 0 0.578158 0 8.87842 1.47435i 0
641.3 0 −2.55118 1.57844i 0 −1.31534 0 −10.2329 0 4.01705 + 8.05378i 0
641.4 0 −2.55118 + 1.57844i 0 −1.31534 0 −10.2329 0 4.01705 8.05378i 0
641.5 0 −1.32750 2.69031i 0 −0.640013 0 2.72077 0 −5.47550 + 7.14275i 0
641.6 0 −1.32750 + 2.69031i 0 −0.640013 0 2.72077 0 −5.47550 7.14275i 0
641.7 0 −0.888828 2.86531i 0 −8.59176 0 10.9340 0 −7.41997 + 5.09353i 0
641.8 0 −0.888828 + 2.86531i 0 −8.59176 0 10.9340 0 −7.41997 5.09353i 0
641.9 0 0.888828 2.86531i 0 8.59176 0 10.9340 0 −7.41997 5.09353i 0
641.10 0 0.888828 + 2.86531i 0 8.59176 0 10.9340 0 −7.41997 + 5.09353i 0
641.11 0 1.32750 2.69031i 0 0.640013 0 2.72077 0 −5.47550 7.14275i 0
641.12 0 1.32750 + 2.69031i 0 0.640013 0 2.72077 0 −5.47550 + 7.14275i 0
641.13 0 2.55118 1.57844i 0 1.31534 0 −10.2329 0 4.01705 8.05378i 0
641.14 0 2.55118 + 1.57844i 0 1.31534 0 −10.2329 0 4.01705 + 8.05378i 0
641.15 0 2.98985 0.246559i 0 −6.63641 0 0.578158 0 8.87842 1.47435i 0
641.16 0 2.98985 + 0.246559i 0 −6.63641 0 0.578158 0 8.87842 + 1.47435i 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 641.16
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
3.b odd 2 1 inner
8.b even 2 1 inner
24.h odd 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 768.3.h.h 16
3.b odd 2 1 inner 768.3.h.h 16
4.b odd 2 1 768.3.h.g 16
8.b even 2 1 inner 768.3.h.h 16
8.d odd 2 1 768.3.h.g 16
12.b even 2 1 768.3.h.g 16
16.e even 4 1 384.3.e.a 8
16.e even 4 1 384.3.e.c yes 8
16.f odd 4 1 384.3.e.b yes 8
16.f odd 4 1 384.3.e.d yes 8
24.f even 2 1 768.3.h.g 16
24.h odd 2 1 inner 768.3.h.h 16
48.i odd 4 1 384.3.e.a 8
48.i odd 4 1 384.3.e.c yes 8
48.k even 4 1 384.3.e.b yes 8
48.k even 4 1 384.3.e.d yes 8
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
384.3.e.a 8 16.e even 4 1
384.3.e.a 8 48.i odd 4 1
384.3.e.b yes 8 16.f odd 4 1
384.3.e.b yes 8 48.k even 4 1
384.3.e.c yes 8 16.e even 4 1
384.3.e.c yes 8 48.i odd 4 1
384.3.e.d yes 8 16.f odd 4 1
384.3.e.d yes 8 48.k even 4 1
768.3.h.g 16 4.b odd 2 1
768.3.h.g 16 8.d odd 2 1
768.3.h.g 16 12.b even 2 1
768.3.h.g 16 24.f even 2 1
768.3.h.h 16 1.a even 1 1 trivial
768.3.h.h 16 3.b odd 2 1 inner
768.3.h.h 16 8.b even 2 1 inner
768.3.h.h 16 24.h odd 2 1 inner

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{3}^{\mathrm{new}}(768, [\chi])\):

\( T_{5}^{8} - 120T_{5}^{6} + 3504T_{5}^{4} - 7040T_{5}^{2} + 2304 \) Copy content Toggle raw display
\( T_{7}^{4} - 4T_{7}^{3} - 108T_{7}^{2} + 368T_{7} - 176 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{16} \) Copy content Toggle raw display
$3$ \( T^{16} - 36 T^{12} + \cdots + 43046721 \) Copy content Toggle raw display
$5$ \( (T^{8} - 120 T^{6} + \cdots + 2304)^{2} \) Copy content Toggle raw display
$7$ \( (T^{4} - 4 T^{3} + \cdots - 176)^{4} \) Copy content Toggle raw display
$11$ \( (T^{8} - 488 T^{6} + \cdots + 20214016)^{2} \) Copy content Toggle raw display
$13$ \( (T^{8} + 720 T^{6} + \cdots + 61214976)^{2} \) Copy content Toggle raw display
$17$ \( (T^{8} + 1248 T^{6} + \cdots + 991494144)^{2} \) Copy content Toggle raw display
$19$ \( (T^{8} + 1704 T^{6} + \cdots + 9673115904)^{2} \) Copy content Toggle raw display
$23$ \( (T^{8} + 2336 T^{6} + \cdots + 48132849664)^{2} \) Copy content Toggle raw display
$29$ \( (T^{8} - 3704 T^{6} + \cdots + 78767790336)^{2} \) Copy content Toggle raw display
$31$ \( (T^{4} - 28 T^{3} + \cdots + 50256)^{4} \) Copy content Toggle raw display
$37$ \( (T^{8} + 7312 T^{6} + \cdots + 238565818624)^{2} \) Copy content Toggle raw display
$41$ \( (T^{8} + \cdots + 3916979306496)^{2} \) Copy content Toggle raw display
$43$ \( (T^{8} + 5800 T^{6} + \cdots + 841666795776)^{2} \) Copy content Toggle raw display
$47$ \( (T^{8} + 5376 T^{6} + \cdots + 424144797696)^{2} \) Copy content Toggle raw display
$53$ \( (T^{8} + \cdots + 870911869798656)^{2} \) Copy content Toggle raw display
$59$ \( (T^{8} + \cdots + 12745356964096)^{2} \) Copy content Toggle raw display
$61$ \( (T^{8} + \cdots + 21019364057344)^{2} \) Copy content Toggle raw display
$67$ \( (T^{8} + \cdots + 46033728153856)^{2} \) Copy content Toggle raw display
$71$ \( (T^{8} + \cdots + 1706597351424)^{2} \) Copy content Toggle raw display
$73$ \( (T^{4} - 40 T^{3} + \cdots - 899312)^{4} \) Copy content Toggle raw display
$79$ \( (T^{4} - 204 T^{3} + \cdots - 38762928)^{4} \) Copy content Toggle raw display
$83$ \( (T^{8} + \cdots + 56638749360384)^{2} \) Copy content Toggle raw display
$89$ \( (T^{8} + \cdots + 92\!\cdots\!56)^{2} \) Copy content Toggle raw display
$97$ \( (T^{4} - 48 T^{3} + \cdots + 8416272)^{4} \) Copy content Toggle raw display
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