Properties

Label 672.4.c.b
Level $672$
Weight $4$
Character orbit 672.c
Analytic conductor $39.649$
Analytic rank $0$
Dimension $20$
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] = [672,4,Mod(337,672)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(672, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([0, 1, 0, 0]))
 
N = Newforms(chi, 4, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("672.337");
 
S:= CuspForms(chi, 4);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 672 = 2^{5} \cdot 3 \cdot 7 \)
Weight: \( k \) \(=\) \( 4 \)
Character orbit: \([\chi]\) \(=\) 672.c (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: \(39.6492835239\)
Analytic rank: \(0\)
Dimension: \(20\)
Coefficient field: \(\mathbb{Q}[x]/(x^{20} - \cdots)\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{20} - 2 x^{19} - 5 x^{18} - 26 x^{17} + 122 x^{16} + 124 x^{15} - 276 x^{14} - 1376 x^{13} + \cdots + 1073741824 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{13}]\)
Coefficient ring index: \( 2^{60}\cdot 3^{10} \)
Twist minimal: no (minimal twist has level 168)
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 \(1,\beta_1,\ldots,\beta_{19}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + \beta_{2} q^{3} - \beta_1 q^{5} + 7 q^{7} - 9 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + \beta_{2} q^{3} - \beta_1 q^{5} + 7 q^{7} - 9 q^{9} + (\beta_{6} - 2 \beta_{2}) q^{11} + ( - \beta_{9} - 2 \beta_{2}) q^{13} + (\beta_{16} - 3) q^{15} + (\beta_{5} - 3) q^{17} + (\beta_{12} + 5 \beta_{2}) q^{19} + 7 \beta_{2} q^{21} + ( - \beta_{19} + 12) q^{23} + ( - \beta_{17} + \beta_{16} + \cdots - 42) q^{25}+ \cdots + ( - 9 \beta_{6} + 18 \beta_{2}) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 20 q + 140 q^{7} - 180 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 20 q + 140 q^{7} - 180 q^{9} - 60 q^{15} - 52 q^{17} + 244 q^{23} - 844 q^{25} - 264 q^{31} + 396 q^{33} + 312 q^{39} - 236 q^{41} + 980 q^{49} - 72 q^{55} - 912 q^{57} - 1260 q^{63} + 1744 q^{65} + 636 q^{71} - 2784 q^{73} - 2872 q^{79} + 1620 q^{81} + 220 q^{89} + 1240 q^{95} + 4400 q^{97}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{20} - 2 x^{19} - 5 x^{18} - 26 x^{17} + 122 x^{16} + 124 x^{15} - 276 x^{14} - 1376 x^{13} + \cdots + 1073741824 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( - 249239 \nu^{19} - 9170499 \nu^{18} - 76180607 \nu^{17} + 361395123 \nu^{16} + \cdots + 64\!\cdots\!60 ) / 154267331592192 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( 10567955 \nu^{19} - 35602606 \nu^{18} - 39792079 \nu^{17} - 378375750 \nu^{16} + \cdots - 39\!\cdots\!56 ) / 822759101825024 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( - 202665 \nu^{19} - 14089318 \nu^{18} + 11395197 \nu^{17} + 96736322 \nu^{16} + \cdots + 11\!\cdots\!60 ) / 5687274897408 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( 135994909 \nu^{19} - 787430514 \nu^{18} + 12407585951 \nu^{17} + 2076769958 \nu^{16} + \cdots + 33\!\cdots\!24 ) / 24\!\cdots\!72 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( - 68772 \nu^{19} + 1552331 \nu^{18} - 1949478 \nu^{17} - 8969215 \nu^{16} + \cdots - 117029713477632 ) / 710909362176 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( 10885131 \nu^{19} - 27521502 \nu^{18} + 232133689 \nu^{17} - 901697014 \nu^{16} + \cdots - 12\!\cdots\!12 ) / 94933742518272 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( 448208679 \nu^{19} + 1034629674 \nu^{18} - 19502268083 \nu^{17} - 36011697742 \nu^{16} + \cdots - 44\!\cdots\!96 ) / 24\!\cdots\!72 \) Copy content Toggle raw display
\(\beta_{8}\)\(=\) \( ( - 77198039 \nu^{19} + 643792422 \nu^{18} - 1075345597 \nu^{17} + 6355490174 \nu^{16} + \cdots + 10\!\cdots\!00 ) / 352611043639296 \) Copy content Toggle raw display
\(\beta_{9}\)\(=\) \( ( - 104055827 \nu^{19} - 80412826 \nu^{18} + 2982879391 \nu^{17} - 888846802 \nu^{16} + \cdots - 45\!\cdots\!04 ) / 411379550912512 \) Copy content Toggle raw display
\(\beta_{10}\)\(=\) \( ( - 44941207 \nu^{19} + 319710534 \nu^{18} - 317005309 \nu^{17} + 2683807326 \nu^{16} + \cdots + 39\!\cdots\!36 ) / 176305521819648 \) Copy content Toggle raw display
\(\beta_{11}\)\(=\) \( ( - 26115319 \nu^{19} - 17003346 \nu^{18} + 226602675 \nu^{17} - 66446698 \nu^{16} + \cdots - 14\!\cdots\!64 ) / 94933742518272 \) Copy content Toggle raw display
\(\beta_{12}\)\(=\) \( ( 238410449 \nu^{19} + 718435510 \nu^{18} - 8207601221 \nu^{17} + 9821924366 \nu^{16} + \cdots + 23\!\cdots\!44 ) / 822759101825024 \) Copy content Toggle raw display
\(\beta_{13}\)\(=\) \( ( 2372275 \nu^{19} - 10488814 \nu^{18} + 9104593 \nu^{17} - 25546758 \nu^{16} + \cdots - 209083705589760 ) / 5687274897408 \) Copy content Toggle raw display
\(\beta_{14}\)\(=\) \( ( - 2797375 \nu^{19} - 7895890 \nu^{18} + 14918939 \nu^{17} + 103151350 \nu^{16} + \cdots + 860759563173888 ) / 5687274897408 \) Copy content Toggle raw display
\(\beta_{15}\)\(=\) \( ( 3017837 \nu^{19} - 27312378 \nu^{18} - 11097025 \nu^{17} + 155360078 \nu^{16} + \cdots + 25\!\cdots\!52 ) / 5687274897408 \) Copy content Toggle raw display
\(\beta_{16}\)\(=\) \( ( - 1024917 \nu^{19} + 751938 \nu^{18} + 1597593 \nu^{17} + 23152362 \nu^{16} + \cdots + 215348787806208 ) / 1895758299136 \) Copy content Toggle raw display
\(\beta_{17}\)\(=\) \( ( 101797 \nu^{19} + 27810 \nu^{18} - 759857 \nu^{17} - 1519646 \nu^{16} + 2251594 \nu^{15} + \cdots + 1907538001920 ) / 177727340544 \) Copy content Toggle raw display
\(\beta_{18}\)\(=\) \( ( - 5692025 \nu^{19} + 21035450 \nu^{18} + 402637 \nu^{17} + 28868706 \nu^{16} + \cdots - 34404298653696 ) / 5687274897408 \) Copy content Toggle raw display
\(\beta_{19}\)\(=\) \( ( - 847982 \nu^{19} - 1675015 \nu^{18} + 2115040 \nu^{17} + 36344691 \nu^{16} + \cdots + 379966093000704 ) / 710909362176 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_{19} + \beta_{18} - 2 \beta_{16} - 2 \beta_{11} - \beta_{10} + \beta_{9} + \beta_{7} - 2 \beta_{6} + \cdots + 20 ) / 192 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( - \beta_{17} + 2 \beta_{16} - 2 \beta_{14} + 2 \beta_{12} + 2 \beta_{10} + 2 \beta_{9} - 2 \beta_{8} + \cdots + 45 ) / 64 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( - 5 \beta_{19} - 5 \beta_{18} + 6 \beta_{17} + 20 \beta_{16} + 6 \beta_{14} - 24 \beta_{13} + \cdots + 1124 ) / 192 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( ( 14 \beta_{19} + 22 \beta_{18} - 3 \beta_{17} - 46 \beta_{16} - 4 \beta_{15} - 6 \beta_{14} - 2 \beta_{12} + \cdots - 421 ) / 64 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( 117 \beta_{19} - 75 \beta_{18} + 54 \beta_{17} - 108 \beta_{16} - 120 \beta_{15} - 30 \beta_{14} + \cdots - 1752 ) / 192 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( ( 34 \beta_{19} - 22 \beta_{18} - 49 \beta_{17} + 38 \beta_{16} + 44 \beta_{15} - 66 \beta_{14} + \cdots + 5345 ) / 64 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( ( 359 \beta_{19} + 455 \beta_{18} - 1242 \beta_{17} - 1028 \beta_{16} + 312 \beta_{15} + 150 \beta_{14} + \cdots - 65156 ) / 192 \) Copy content Toggle raw display
\(\nu^{8}\)\(=\) \( ( 434 \beta_{19} - 758 \beta_{18} - 155 \beta_{17} + 642 \beta_{16} - 188 \beta_{15} - 366 \beta_{14} + \cdots + 80435 ) / 64 \) Copy content Toggle raw display
\(\nu^{9}\)\(=\) \( ( 4637 \beta_{19} + 4061 \beta_{18} + 6054 \beta_{17} - 628 \beta_{16} + 2328 \beta_{15} + 2682 \beta_{14} + \cdots + 179728 ) / 192 \) Copy content Toggle raw display
\(\nu^{10}\)\(=\) \( ( - 4182 \beta_{19} + 7282 \beta_{18} - 5177 \beta_{17} + 7158 \beta_{16} + 1804 \beta_{15} + \cdots - 113927 ) / 64 \) Copy content Toggle raw display
\(\nu^{11}\)\(=\) \( ( - 70049 \beta_{19} - 28097 \beta_{18} + 26046 \beta_{17} + 269404 \beta_{16} + 45048 \beta_{15} + \cdots - 1130332 ) / 192 \) Copy content Toggle raw display
\(\nu^{12}\)\(=\) \( ( - 4182 \beta_{19} + 34306 \beta_{18} + 43725 \beta_{17} + 114706 \beta_{16} + 17092 \beta_{15} + \cdots - 5933157 ) / 64 \) Copy content Toggle raw display
\(\nu^{13}\)\(=\) \( ( - 8507 \beta_{19} + 229957 \beta_{18} - 216642 \beta_{17} - 441412 \beta_{16} - 185544 \beta_{15} + \cdots - 6708472 ) / 192 \) Copy content Toggle raw display
\(\nu^{14}\)\(=\) \( ( 68994 \beta_{19} - 191606 \beta_{18} + 160223 \beta_{17} - 141274 \beta_{16} + 293676 \beta_{15} + \cdots + 100625 ) / 64 \) Copy content Toggle raw display
\(\nu^{15}\)\(=\) \( ( 2049879 \beta_{19} - 2335113 \beta_{18} - 2365338 \beta_{17} + 1589292 \beta_{16} - 729576 \beta_{15} + \cdots - 474540180 ) / 192 \) Copy content Toggle raw display
\(\nu^{16}\)\(=\) \( ( - 929742 \beta_{19} - 3694134 \beta_{18} - 4003595 \beta_{17} - 1513822 \beta_{16} - 27676 \beta_{15} + \cdots - 304116733 ) / 64 \) Copy content Toggle raw display
\(\nu^{17}\)\(=\) \( ( - 2456563 \beta_{19} + 4158797 \beta_{18} + 14825622 \beta_{17} - 40809044 \beta_{16} + \cdots + 534670336 ) / 192 \) Copy content Toggle raw display
\(\nu^{18}\)\(=\) \( ( 5084218 \beta_{19} - 3499262 \beta_{18} + 24572471 \beta_{17} - 12173930 \beta_{16} - 37050356 \beta_{15} + \cdots - 3142526039 ) / 64 \) Copy content Toggle raw display
\(\nu^{19}\)\(=\) \( ( - 322266865 \beta_{19} - 62122897 \beta_{18} + 27380814 \beta_{17} + 233109308 \beta_{16} + \cdots - 13877927372 ) / 192 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/672\mathbb{Z}\right)^\times\).

\(n\) \(127\) \(421\) \(449\) \(577\)
\(\chi(n)\) \(1\) \(-1\) \(1\) \(1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
337.1
0.404977 2.79928i
2.75494 0.640567i
−0.878338 + 2.68859i
1.92113 + 2.07587i
−2.80433 + 0.368457i
−1.78337 2.19536i
2.78865 + 0.472666i
2.32756 1.60701i
−2.07092 + 1.92647i
−1.66031 2.28984i
−1.66031 + 2.28984i
−2.07092 1.92647i
2.32756 + 1.60701i
2.78865 0.472666i
−1.78337 + 2.19536i
−2.80433 0.368457i
1.92113 2.07587i
−0.878338 2.68859i
2.75494 + 0.640567i
0.404977 + 2.79928i
0 3.00000i 0 19.4431i 0 7.00000 0 −9.00000 0
337.2 0 3.00000i 0 19.2168i 0 7.00000 0 −9.00000 0
337.3 0 3.00000i 0 8.95699i 0 7.00000 0 −9.00000 0
337.4 0 3.00000i 0 6.44878i 0 7.00000 0 −9.00000 0
337.5 0 3.00000i 0 5.44298i 0 7.00000 0 −9.00000 0
337.6 0 3.00000i 0 4.34928i 0 7.00000 0 −9.00000 0
337.7 0 3.00000i 0 8.98099i 0 7.00000 0 −9.00000 0
337.8 0 3.00000i 0 14.0008i 0 7.00000 0 −9.00000 0
337.9 0 3.00000i 0 14.7392i 0 7.00000 0 −9.00000 0
337.10 0 3.00000i 0 16.1369i 0 7.00000 0 −9.00000 0
337.11 0 3.00000i 0 16.1369i 0 7.00000 0 −9.00000 0
337.12 0 3.00000i 0 14.7392i 0 7.00000 0 −9.00000 0
337.13 0 3.00000i 0 14.0008i 0 7.00000 0 −9.00000 0
337.14 0 3.00000i 0 8.98099i 0 7.00000 0 −9.00000 0
337.15 0 3.00000i 0 4.34928i 0 7.00000 0 −9.00000 0
337.16 0 3.00000i 0 5.44298i 0 7.00000 0 −9.00000 0
337.17 0 3.00000i 0 6.44878i 0 7.00000 0 −9.00000 0
337.18 0 3.00000i 0 8.95699i 0 7.00000 0 −9.00000 0
337.19 0 3.00000i 0 19.2168i 0 7.00000 0 −9.00000 0
337.20 0 3.00000i 0 19.4431i 0 7.00000 0 −9.00000 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 337.20
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
8.b even 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 672.4.c.b 20
3.b odd 2 1 2016.4.c.f 20
4.b odd 2 1 168.4.c.b 20
8.b even 2 1 inner 672.4.c.b 20
8.d odd 2 1 168.4.c.b 20
12.b even 2 1 504.4.c.e 20
24.f even 2 1 504.4.c.e 20
24.h odd 2 1 2016.4.c.f 20
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
168.4.c.b 20 4.b odd 2 1
168.4.c.b 20 8.d odd 2 1
504.4.c.e 20 12.b even 2 1
504.4.c.e 20 24.f even 2 1
672.4.c.b 20 1.a even 1 1 trivial
672.4.c.b 20 8.b even 2 1 inner
2016.4.c.f 20 3.b odd 2 1
2016.4.c.f 20 24.h odd 2 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{5}^{20} + 1672 T_{5}^{18} + 1173484 T_{5}^{16} + 450983936 T_{5}^{14} + 103974448816 T_{5}^{12} + \cdots + 23\!\cdots\!84 \) acting on \(S_{4}^{\mathrm{new}}(672, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{20} \) Copy content Toggle raw display
$3$ \( (T^{2} + 9)^{10} \) Copy content Toggle raw display
$5$ \( T^{20} + \cdots + 23\!\cdots\!84 \) Copy content Toggle raw display
$7$ \( (T - 7)^{20} \) Copy content Toggle raw display
$11$ \( T^{20} + \cdots + 75\!\cdots\!00 \) Copy content Toggle raw display
$13$ \( T^{20} + \cdots + 52\!\cdots\!96 \) Copy content Toggle raw display
$17$ \( (T^{10} + \cdots + 21\!\cdots\!84)^{2} \) Copy content Toggle raw display
$19$ \( T^{20} + \cdots + 13\!\cdots\!44 \) Copy content Toggle raw display
$23$ \( (T^{10} + \cdots + 21\!\cdots\!44)^{2} \) Copy content Toggle raw display
$29$ \( T^{20} + \cdots + 33\!\cdots\!56 \) Copy content Toggle raw display
$31$ \( (T^{10} + \cdots - 37\!\cdots\!76)^{2} \) Copy content Toggle raw display
$37$ \( T^{20} + \cdots + 49\!\cdots\!36 \) Copy content Toggle raw display
$41$ \( (T^{10} + \cdots - 59\!\cdots\!64)^{2} \) Copy content Toggle raw display
$43$ \( T^{20} + \cdots + 10\!\cdots\!24 \) Copy content Toggle raw display
$47$ \( (T^{10} + \cdots - 23\!\cdots\!64)^{2} \) Copy content Toggle raw display
$53$ \( T^{20} + \cdots + 48\!\cdots\!64 \) Copy content Toggle raw display
$59$ \( T^{20} + \cdots + 11\!\cdots\!56 \) Copy content Toggle raw display
$61$ \( T^{20} + \cdots + 19\!\cdots\!00 \) Copy content Toggle raw display
$67$ \( T^{20} + \cdots + 25\!\cdots\!36 \) Copy content Toggle raw display
$71$ \( (T^{10} + \cdots - 71\!\cdots\!36)^{2} \) Copy content Toggle raw display
$73$ \( (T^{10} + \cdots + 70\!\cdots\!96)^{2} \) Copy content Toggle raw display
$79$ \( (T^{10} + \cdots + 18\!\cdots\!80)^{2} \) Copy content Toggle raw display
$83$ \( T^{20} + \cdots + 11\!\cdots\!56 \) Copy content Toggle raw display
$89$ \( (T^{10} + \cdots + 11\!\cdots\!20)^{2} \) Copy content Toggle raw display
$97$ \( (T^{10} + \cdots + 11\!\cdots\!72)^{2} \) Copy content Toggle raw display
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