Properties

Label 9898.2.a.bi
Level $9898$
Weight $2$
Character orbit 9898.a
Self dual yes
Analytic conductor $79.036$
Analytic rank $0$
Dimension $20$
CM no
Inner twists $1$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [9898,2,Mod(1,9898)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(9898, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([0, 0]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("9898.1");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 9898 = 2 \cdot 7^{2} \cdot 101 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 9898.a (trivial)

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: yes
Analytic conductor: \(79.0359279207\)
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: \( x^{20} - 2 x^{19} - 43 x^{18} + 78 x^{17} + 774 x^{16} - 1240 x^{15} - 7575 x^{14} + 10337 x^{13} + \cdots + 3160 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{17}]\)
Coefficient ring index: \( 2^{4} \)
Twist minimal: no (minimal twist has level 1414)
Fricke sign: \(-1\)
Sato-Tate group: $\mathrm{SU}(2)$

$q$-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.

\(f(q)\) \(=\) \( q + q^{2} - \beta_1 q^{3} + q^{4} - \beta_{7} q^{5} - \beta_1 q^{6} + q^{8} + (\beta_{2} + 2) q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + q^{2} - \beta_1 q^{3} + q^{4} - \beta_{7} q^{5} - \beta_1 q^{6} + q^{8} + (\beta_{2} + 2) q^{9} - \beta_{7} q^{10} + (\beta_{11} + 1) q^{11} - \beta_1 q^{12} - \beta_{14} q^{13} + ( - \beta_{6} + 1) q^{15} + q^{16} + \beta_{5} q^{17} + (\beta_{2} + 2) q^{18} + \beta_{8} q^{19} - \beta_{7} q^{20} + (\beta_{11} + 1) q^{22} + ( - \beta_{15} + 2) q^{23} - \beta_1 q^{24} + ( - \beta_{19} - \beta_{14} + \beta_1 + 2) q^{25} - \beta_{14} q^{26} + ( - \beta_{19} - \beta_{17} - \beta_{13} + \cdots - 2) q^{27}+ \cdots + (\beta_{14} + \beta_{13} + \beta_{12} + \cdots + 2) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 20 q + 20 q^{2} - 2 q^{3} + 20 q^{4} + q^{5} - 2 q^{6} + 20 q^{8} + 30 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 20 q + 20 q^{2} - 2 q^{3} + 20 q^{4} + q^{5} - 2 q^{6} + 20 q^{8} + 30 q^{9} + q^{10} + 16 q^{11} - 2 q^{12} + 5 q^{13} + 10 q^{15} + 20 q^{16} + 3 q^{17} + 30 q^{18} + 2 q^{19} + q^{20} + 16 q^{22} + 38 q^{23} - 2 q^{24} + 43 q^{25} + 5 q^{26} - 20 q^{27} + 17 q^{29} + 10 q^{30} - q^{31} + 20 q^{32} + 14 q^{33} + 3 q^{34} + 30 q^{36} + 39 q^{37} + 2 q^{38} + 17 q^{39} + q^{40} - 2 q^{41} + 9 q^{43} + 16 q^{44} - 5 q^{45} + 38 q^{46} - 16 q^{47} - 2 q^{48} + 43 q^{50} + 5 q^{51} + 5 q^{52} + 56 q^{53} - 20 q^{54} + 3 q^{55} - 6 q^{57} + 17 q^{58} + 31 q^{59} + 10 q^{60} - 3 q^{61} - q^{62} + 20 q^{64} + 31 q^{65} + 14 q^{66} + 15 q^{67} + 3 q^{68} + 10 q^{69} + 24 q^{71} + 30 q^{72} + 13 q^{73} + 39 q^{74} - 55 q^{75} + 2 q^{76} + 17 q^{78} + 43 q^{79} + q^{80} + 52 q^{81} - 2 q^{82} + q^{83} + 3 q^{85} + 9 q^{86} + 9 q^{87} + 16 q^{88} - 5 q^{90} + 38 q^{92} + 3 q^{93} - 16 q^{94} + 10 q^{95} - 2 q^{96} + 14 q^{97} + 22 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{20} - 2 x^{19} - 43 x^{18} + 78 x^{17} + 774 x^{16} - 1240 x^{15} - 7575 x^{14} + 10337 x^{13} + \cdots + 3160 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( \nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( \nu^{2} - 5 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( - 96\!\cdots\!79 \nu^{19} + \cdots + 88\!\cdots\!64 ) / 20\!\cdots\!16 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( 22\!\cdots\!93 \nu^{19} + \cdots + 28\!\cdots\!48 ) / 41\!\cdots\!32 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( - 95\!\cdots\!71 \nu^{19} + \cdots - 27\!\cdots\!92 ) / 82\!\cdots\!64 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( - 70\!\cdots\!53 \nu^{19} + \cdots - 44\!\cdots\!68 ) / 41\!\cdots\!32 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( - 14\!\cdots\!30 \nu^{19} + \cdots - 88\!\cdots\!44 ) / 41\!\cdots\!32 \) Copy content Toggle raw display
\(\beta_{8}\)\(=\) \( ( - 15\!\cdots\!04 \nu^{19} + \cdots - 10\!\cdots\!28 ) / 41\!\cdots\!32 \) Copy content Toggle raw display
\(\beta_{9}\)\(=\) \( ( - 16\!\cdots\!85 \nu^{19} + \cdots - 10\!\cdots\!24 ) / 41\!\cdots\!32 \) Copy content Toggle raw display
\(\beta_{10}\)\(=\) \( ( 36\!\cdots\!05 \nu^{19} + \cdots + 22\!\cdots\!92 ) / 82\!\cdots\!64 \) Copy content Toggle raw display
\(\beta_{11}\)\(=\) \( ( - 21\!\cdots\!77 \nu^{19} + \cdots - 10\!\cdots\!52 ) / 41\!\cdots\!32 \) Copy content Toggle raw display
\(\beta_{12}\)\(=\) \( ( 25\!\cdots\!01 \nu^{19} + \cdots + 15\!\cdots\!20 ) / 41\!\cdots\!32 \) Copy content Toggle raw display
\(\beta_{13}\)\(=\) \( ( - 61\!\cdots\!29 \nu^{19} + \cdots - 38\!\cdots\!56 ) / 82\!\cdots\!64 \) Copy content Toggle raw display
\(\beta_{14}\)\(=\) \( ( 53\!\cdots\!03 \nu^{19} + \cdots + 28\!\cdots\!92 ) / 41\!\cdots\!32 \) Copy content Toggle raw display
\(\beta_{15}\)\(=\) \( ( 26\!\cdots\!35 \nu^{19} + \cdots + 16\!\cdots\!04 ) / 20\!\cdots\!16 \) Copy content Toggle raw display
\(\beta_{16}\)\(=\) \( ( 62\!\cdots\!09 \nu^{19} + \cdots + 35\!\cdots\!60 ) / 41\!\cdots\!32 \) Copy content Toggle raw display
\(\beta_{17}\)\(=\) \( ( 77\!\cdots\!42 \nu^{19} + \cdots + 45\!\cdots\!80 ) / 41\!\cdots\!32 \) Copy content Toggle raw display
\(\beta_{18}\)\(=\) \( ( - 85\!\cdots\!43 \nu^{19} + \cdots - 47\!\cdots\!12 ) / 41\!\cdots\!32 \) Copy content Toggle raw display
\(\beta_{19}\)\(=\) \( ( - 93\!\cdots\!57 \nu^{19} + \cdots - 52\!\cdots\!56 ) / 41\!\cdots\!32 \) Copy content Toggle raw display
\(\nu\)\(=\) \( \beta_1 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( \beta_{2} + 5 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( \beta_{19} + \beta_{17} + \beta_{13} + \beta_{12} - \beta_{11} + \beta_{7} - \beta_{6} - \beta_{5} + \beta_{4} + 7\beta _1 + 2 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( \beta_{18} - \beta_{16} + 2\beta_{12} - 2\beta_{11} + \beta_{10} - 2\beta_{8} - \beta_{5} + 10\beta_{2} + \beta _1 + 40 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( 14 \beta_{19} + 4 \beta_{18} + 14 \beta_{17} + \beta_{15} + 3 \beta_{14} + 14 \beta_{13} + 14 \beta_{12} + \cdots + 32 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( \beta_{19} + 20 \beta_{18} + 3 \beta_{17} - 15 \beta_{16} + \beta_{14} + 6 \beta_{13} + 36 \beta_{12} + \cdots + 362 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( 164 \beta_{19} + 75 \beta_{18} + 164 \beta_{17} - \beta_{16} + 17 \beta_{15} + 51 \beta_{14} + \cdots + 412 \) Copy content Toggle raw display
\(\nu^{8}\)\(=\) \( 23 \beta_{19} + 294 \beta_{18} + 72 \beta_{17} - 181 \beta_{16} + 22 \beta_{14} + 152 \beta_{13} + \cdots + 3499 \) Copy content Toggle raw display
\(\nu^{9}\)\(=\) \( 1820 \beta_{19} + 1072 \beta_{18} + 1820 \beta_{17} - 23 \beta_{16} + 226 \beta_{15} + 658 \beta_{14} + \cdots + 4964 \) Copy content Toggle raw display
\(\nu^{10}\)\(=\) \( 392 \beta_{19} + 3851 \beta_{18} + 1204 \beta_{17} - 2046 \beta_{16} - 12 \beta_{15} + 362 \beta_{14} + \cdots + 35240 \) Copy content Toggle raw display
\(\nu^{11}\)\(=\) \( 19791 \beta_{19} + 13860 \beta_{18} + 19798 \beta_{17} - 380 \beta_{16} + 2746 \beta_{15} + 7733 \beta_{14} + \cdots + 58227 \) Copy content Toggle raw display
\(\nu^{12}\)\(=\) \( 5990 \beta_{19} + 47697 \beta_{18} + 17378 \beta_{17} - 22537 \beta_{16} - 352 \beta_{15} + \cdots + 364541 \) Copy content Toggle raw display
\(\nu^{13}\)\(=\) \( 213578 \beta_{19} + 170527 \beta_{18} + 213966 \beta_{17} - 5638 \beta_{16} + 31853 \beta_{15} + \cdots + 674271 \) Copy content Toggle raw display
\(\nu^{14}\)\(=\) \( 86220 \beta_{19} + 572845 \beta_{18} + 232281 \beta_{17} - 245431 \beta_{16} - 6358 \beta_{15} + \cdots + 3840195 \) Copy content Toggle raw display
\(\nu^{15}\)\(=\) \( 2299959 \beta_{19} + 2039723 \beta_{18} + 2311415 \beta_{17} - 79862 \beta_{16} + 359435 \beta_{15} + \cdots + 7753209 \) Copy content Toggle raw display
\(\nu^{16}\)\(=\) \( 1189995 \beta_{19} + 6754747 \beta_{18} + 2966467 \beta_{17} - 2659394 \beta_{16} - 90863 \beta_{15} + \cdots + 40982314 \) Copy content Toggle raw display
\(\nu^{17}\)\(=\) \( 24777841 \beta_{19} + 23975472 \beta_{18} + 25028426 \beta_{17} - 1099132 \beta_{16} + 3985942 \beta_{15} + \cdots + 88770275 \) Copy content Toggle raw display
\(\nu^{18}\)\(=\) \( 15892346 \beta_{19} + 78726084 \beta_{18} + 36786988 \beta_{17} - 28763783 \beta_{16} - 1120939 \beta_{15} + \cdots + 441623570 \) Copy content Toggle raw display
\(\nu^{19}\)\(=\) \( 267373082 \beta_{19} + 278607093 \beta_{18} + 271971867 \beta_{17} - 14771407 \beta_{16} + \cdots + 1013531650 \) Copy content Toggle raw display

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
1.1
3.35871
3.05063
2.99500
2.52494
2.39224
2.24270
1.28125
0.775250
0.535014
0.424862
−0.523259
−0.548297
−0.586594
−0.894573
−1.94262
−2.05588
−2.29342
−2.58363
−2.96256
−3.18977
1.00000 −3.35871 1.00000 0.267686 −3.35871 0 1.00000 8.28096 0.267686
1.2 1.00000 −3.05063 1.00000 −4.21199 −3.05063 0 1.00000 6.30632 −4.21199
1.3 1.00000 −2.99500 1.00000 2.06577 −2.99500 0 1.00000 5.97000 2.06577
1.4 1.00000 −2.52494 1.00000 −0.967238 −2.52494 0 1.00000 3.37534 −0.967238
1.5 1.00000 −2.39224 1.00000 4.26305 −2.39224 0 1.00000 2.72280 4.26305
1.6 1.00000 −2.24270 1.00000 −4.16071 −2.24270 0 1.00000 2.02971 −4.16071
1.7 1.00000 −1.28125 1.00000 1.24467 −1.28125 0 1.00000 −1.35839 1.24467
1.8 1.00000 −0.775250 1.00000 −2.38408 −0.775250 0 1.00000 −2.39899 −2.38408
1.9 1.00000 −0.535014 1.00000 2.37602 −0.535014 0 1.00000 −2.71376 2.37602
1.10 1.00000 −0.424862 1.00000 3.40229 −0.424862 0 1.00000 −2.81949 3.40229
1.11 1.00000 0.523259 1.00000 2.58396 0.523259 0 1.00000 −2.72620 2.58396
1.12 1.00000 0.548297 1.00000 −1.26245 0.548297 0 1.00000 −2.69937 −1.26245
1.13 1.00000 0.586594 1.00000 −2.57677 0.586594 0 1.00000 −2.65591 −2.57677
1.14 1.00000 0.894573 1.00000 −3.87209 0.894573 0 1.00000 −2.19974 −3.87209
1.15 1.00000 1.94262 1.00000 0.645885 1.94262 0 1.00000 0.773770 0.645885
1.16 1.00000 2.05588 1.00000 −1.28904 2.05588 0 1.00000 1.22664 −1.28904
1.17 1.00000 2.29342 1.00000 3.57356 2.29342 0 1.00000 2.25977 3.57356
1.18 1.00000 2.58363 1.00000 1.60764 2.58363 0 1.00000 3.67513 1.60764
1.19 1.00000 2.96256 1.00000 2.36301 2.96256 0 1.00000 5.77679 2.36301
1.20 1.00000 3.18977 1.00000 −2.66918 3.18977 0 1.00000 7.17462 −2.66918
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 1.20
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(2\) \( -1 \)
\(7\) \( -1 \)
\(101\) \( -1 \)

Inner twists

This newform does not admit any (nontrivial) inner twists.

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 9898.2.a.bi 20
7.b odd 2 1 9898.2.a.bj 20
7.d odd 6 2 1414.2.e.g 40
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
1414.2.e.g 40 7.d odd 6 2
9898.2.a.bi 20 1.a even 1 1 trivial
9898.2.a.bj 20 7.b odd 2 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(\Gamma_0(9898))\):

\( T_{3}^{20} + 2 T_{3}^{19} - 43 T_{3}^{18} - 78 T_{3}^{17} + 774 T_{3}^{16} + 1240 T_{3}^{15} + \cdots + 3160 \) Copy content Toggle raw display
\( T_{5}^{20} - T_{5}^{19} - 71 T_{5}^{18} + 84 T_{5}^{17} + 2074 T_{5}^{16} - 2807 T_{5}^{15} + \cdots - 941208 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( (T - 1)^{20} \) Copy content Toggle raw display
$3$ \( T^{20} + 2 T^{19} + \cdots + 3160 \) Copy content Toggle raw display
$5$ \( T^{20} - T^{19} + \cdots - 941208 \) Copy content Toggle raw display
$7$ \( T^{20} \) Copy content Toggle raw display
$11$ \( T^{20} - 16 T^{19} + \cdots - 7413760 \) Copy content Toggle raw display
$13$ \( T^{20} + \cdots + 1343686456 \) Copy content Toggle raw display
$17$ \( T^{20} - 3 T^{19} + \cdots - 57524184 \) Copy content Toggle raw display
$19$ \( T^{20} + \cdots - 271706112 \) Copy content Toggle raw display
$23$ \( T^{20} + \cdots + 17863827451904 \) Copy content Toggle raw display
$29$ \( T^{20} + \cdots + 1970600448 \) Copy content Toggle raw display
$31$ \( T^{20} + T^{19} + \cdots + 61440 \) Copy content Toggle raw display
$37$ \( T^{20} + \cdots + 36590983568600 \) Copy content Toggle raw display
$41$ \( T^{20} + \cdots + 1936065245184 \) Copy content Toggle raw display
$43$ \( T^{20} + \cdots + 152943034368 \) Copy content Toggle raw display
$47$ \( T^{20} + \cdots - 23753833803776 \) Copy content Toggle raw display
$53$ \( T^{20} + \cdots - 796895848448 \) Copy content Toggle raw display
$59$ \( T^{20} + \cdots - 32595519651840 \) Copy content Toggle raw display
$61$ \( T^{20} + \cdots - 158972846819328 \) Copy content Toggle raw display
$67$ \( T^{20} + \cdots + 679462165126584 \) Copy content Toggle raw display
$71$ \( T^{20} + \cdots + 48159926026240 \) Copy content Toggle raw display
$73$ \( T^{20} + \cdots - 17\!\cdots\!44 \) Copy content Toggle raw display
$79$ \( T^{20} + \cdots - 34\!\cdots\!12 \) Copy content Toggle raw display
$83$ \( T^{20} + \cdots - 64650141462088 \) Copy content Toggle raw display
$89$ \( T^{20} + \cdots + 161429430910976 \) Copy content Toggle raw display
$97$ \( T^{20} + \cdots + 58\!\cdots\!96 \) Copy content Toggle raw display
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