Properties

Label 900.4.j.c
Level $900$
Weight $4$
Character orbit 900.j
Analytic conductor $53.102$
Analytic rank $0$
Dimension $16$
CM no
Inner twists $8$

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Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [900,4,Mod(557,900)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(900, base_ring=CyclotomicField(4))
 
chi = DirichletCharacter(H, H._module([0, 2, 1]))
 
N = Newforms(chi, 4, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("900.557");
 
S:= CuspForms(chi, 4);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 900 = 2^{2} \cdot 3^{2} \cdot 5^{2} \)
Weight: \( k \) \(=\) \( 4 \)
Character orbit: \([\chi]\) \(=\) 900.j (of order \(4\), 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: \(53.1017190052\)
Analytic rank: \(0\)
Dimension: \(16\)
Relative dimension: \(8\) over \(\Q(i)\)
Coefficient field: \(\mathbb{Q}[x]/(x^{16} - \cdots)\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{16} - 2737x^{12} + 5811553x^{8} - 4597108992x^{4} + 2821109907456 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{19}]\)
Coefficient ring index: \( 2^{20}\cdot 3^{16} \)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{4}]$

$q$-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.

\(f(q)\) \(=\) \( q + ( - \beta_{4} + 2 \beta_{2}) q^{7}+O(q^{10}) \) Copy content Toggle raw display \( q + ( - \beta_{4} + 2 \beta_{2}) q^{7} - \beta_{12} q^{11} + ( - 2 \beta_{14} - 3 \beta_{9}) q^{13} + \beta_{6} q^{17} + ( - \beta_{10} + 4 \beta_{3}) q^{19} + ( - \beta_{7} + \beta_{5}) q^{23} + ( - \beta_{13} - 2 \beta_{11}) q^{29} + ( - 3 \beta_1 - 98) q^{31} + (8 \beta_{4} - 98 \beta_{2}) q^{37} + ( - 6 \beta_{15} + 4 \beta_{12}) q^{41} + (9 \beta_{14} + 100 \beta_{9}) q^{43} + (\beta_{8} + 13 \beta_{6}) q^{47} + (4 \beta_{10} - 104 \beta_{3}) q^{49} + (4 \beta_{7} + 12 \beta_{5}) q^{53} + 11 \beta_{11} q^{59} + (14 \beta_1 - 265) q^{61} + ( - 25 \beta_{4} - 192 \beta_{2}) q^{67} + ( - 20 \beta_{15} - 2 \beta_{12}) q^{71} + ( - 8 \beta_{14} + 118 \beta_{9}) q^{73} + ( - 6 \beta_{8} + 49 \beta_{6}) q^{77} + (2 \beta_{10} - 40 \beta_{3}) q^{79} + (\beta_{7} + 37 \beta_{5}) q^{83} + ( - 14 \beta_{13} - 16 \beta_{11}) q^{89} + ( - 7 \beta_1 - 888) q^{91} + (28 \beta_{4} - 677 \beta_{2}) q^{97}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 16 q+O(q^{10}) \) Copy content Toggle raw display \( 16 q - 1568 q^{31} - 4240 q^{61} - 14208 q^{91}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{16} - 2737x^{12} + 5811553x^{8} - 4597108992x^{4} + 2821109907456 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( 6\nu^{12} + 20136007731 ) / 424243369 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( 50689\nu^{13} - 74910385\nu^{9} + 115477637473\nu^{5} + 18618504728832\nu ) / 235342882722816 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( -2737\nu^{14} + 5811553\nu^{10} - 13485893905\nu^{6} + 2821109907456\nu^{2} ) / 228982264270848 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( -538129\nu^{13} + 1046236609\nu^{9} - 2599733993329\nu^{5} - 1040713831768320\nu ) / 693307411264512 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( - 7679089 \nu^{14} + 517884192 \nu^{12} + 23437993249 \nu^{10} - 1099638812448 \nu^{8} + \cdots - 14\!\cdots\!80 ) / 10\!\cdots\!76 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( - 7679089 \nu^{14} - 517884192 \nu^{12} + 23437993249 \nu^{10} + 1099638812448 \nu^{8} + \cdots + 14\!\cdots\!80 ) / 10\!\cdots\!76 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( - 25184197 \nu^{14} + 7790714784 \nu^{12} + 317386343989 \nu^{10} - 21164281253280 \nu^{8} + \cdots - 18\!\cdots\!88 ) / 15\!\cdots\!64 \) Copy content Toggle raw display
\(\beta_{8}\)\(=\) \( ( 25184197 \nu^{14} + 7790714784 \nu^{12} - 317386343989 \nu^{10} - 21164281253280 \nu^{8} + \cdots - 18\!\cdots\!88 ) / 15\!\cdots\!64 \) Copy content Toggle raw display
\(\beta_{9}\)\(=\) \( ( -1086265\nu^{15} + 2911801321\nu^{11} - 4656173023513\nu^{7} + 2548324555408512\nu^{3} ) / 152502188004384768 \) Copy content Toggle raw display
\(\beta_{10}\)\(=\) \( ( 2737\nu^{14} - 5811553\nu^{10} + 9132329233\nu^{6} - 2821109907456\nu^{2} ) / 2926321053696 \) Copy content Toggle raw display
\(\beta_{11}\)\(=\) \( ( - 333072 \nu^{15} + 25215017 \nu^{13} - 71371682393 \nu^{9} + 146538407691401 \nu^{5} + \cdots - 11\!\cdots\!64 \nu ) / 85\!\cdots\!48 \) Copy content Toggle raw display
\(\beta_{12}\)\(=\) \( ( 333072 \nu^{15} + 25215017 \nu^{13} - 71371682393 \nu^{9} + 146538407691401 \nu^{5} + \cdots - 11\!\cdots\!64 \nu ) / 85\!\cdots\!48 \) Copy content Toggle raw display
\(\beta_{13}\)\(=\) \( ( 1296 \nu^{15} - 58537 \nu^{13} + 220681945 \nu^{9} - 340190877961 \nu^{5} + \cdots + 269100969064704 \nu ) / 25678052269056 \) Copy content Toggle raw display
\(\beta_{14}\)\(=\) \( ( - 23045833 \nu^{15} + 54187077241 \nu^{11} - 119554129408681 \nu^{7} + 60\!\cdots\!08 \nu^{3} ) / 44\!\cdots\!76 \) Copy content Toggle raw display
\(\beta_{15}\)\(=\) \( ( 1296 \nu^{15} + 58537 \nu^{13} - 220681945 \nu^{9} + 340190877961 \nu^{5} + \cdots - 269100969064704 \nu ) / 25678052269056 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( 5\beta_{15} - 5\beta_{13} - 9\beta_{12} - 9\beta_{11} - 54\beta_{4} - 54\beta_{2} ) / 216 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( -6\beta_{10} + 3\beta_{8} - 3\beta_{7} + 74\beta_{6} + 74\beta_{5} - 1314\beta_{3} ) / 72 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( -257\beta_{15} - 257\beta_{13} + 333\beta_{12} - 333\beta_{11} ) / 108 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( ( -219\beta_{8} - 219\beta_{7} - 2810\beta_{6} + 2810\beta_{5} - 438\beta _1 + 49266 ) / 72 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( -12281\beta_{15} + 12281\beta_{13} + 12645\beta_{12} + 12645\beta_{11} - 75870\beta_{4} - 359694\beta_{2} ) / 216 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( ( -4033\beta_{10} - 315579\beta_{3} ) / 6 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( ( - 563441 \beta_{15} - 2949102 \beta_{14} - 563441 \beta_{13} + 491517 \beta_{12} + \cdots + 18629406 \beta_{9} ) / 216 \) Copy content Toggle raw display
\(\nu^{8}\)\(=\) \( ( -599403\beta_{8} - 599403\beta_{7} - 4331738\beta_{6} + 4331738\beta_{5} + 1198806\beta _1 - 74374866 ) / 72 \) Copy content Toggle raw display
\(\nu^{9}\)\(=\) \( ( -25215017\beta_{15} + 25215017\beta_{13} + 19492821\beta_{12} + 19492821\beta_{11} ) / 108 \) Copy content Toggle raw display
\(\nu^{10}\)\(=\) \( ( - 56152230 \beta_{10} - 28076115 \beta_{8} + 28076115 \beta_{7} - 174659978 \beta_{6} + \cdots - 2975422914 \beta_{3} ) / 72 \) Copy content Toggle raw display
\(\nu^{11}\)\(=\) \( ( 1110476705 \beta_{15} - 4715819406 \beta_{14} + 1110476705 \beta_{13} - 785969901 \beta_{12} + \cdots + 41102464446 \beta_{9} ) / 216 \) Copy content Toggle raw display
\(\nu^{12}\)\(=\) \( ( 424243369\beta _1 - 20136007731 ) / 6 \) Copy content Toggle raw display
\(\nu^{13}\)\(=\) \( ( - 48386137433 \beta_{15} + 48386137433 \beta_{13} + 32113106757 \beta_{12} + \cdots + 1842136859214 \beta_{2} ) / 216 \) Copy content Toggle raw display
\(\nu^{14}\)\(=\) \( ( 113045305542 \beta_{10} - 56522652771 \beta_{8} + 56522652771 \beta_{7} + \cdots + 4963423289634 \beta_{3} ) / 72 \) Copy content Toggle raw display
\(\nu^{15}\)\(=\) \( ( 2093010222929\beta_{15} + 2093010222929\beta_{13} - 1325639801565\beta_{12} + 1325639801565\beta_{11} ) / 108 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/900\mathbb{Z}\right)^\times\).

\(n\) \(101\) \(451\) \(577\)
\(\chi(n)\) \(-1\) \(1\) \(-\beta_{3}\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
557.1
−1.42889 5.33268i
−5.33268 1.42889i
−1.68771 6.29861i
−6.29861 1.68771i
6.29861 + 1.68771i
1.68771 + 6.29861i
5.33268 + 1.42889i
1.42889 + 5.33268i
−5.33268 + 1.42889i
−1.42889 + 5.33268i
−6.29861 + 1.68771i
−1.68771 + 6.29861i
1.68771 6.29861i
6.29861 1.68771i
1.42889 5.33268i
5.33268 1.42889i
0 0 0 0 0 −17.1974 17.1974i 0 0 0
557.2 0 0 0 0 0 −17.1974 17.1974i 0 0 0
557.3 0 0 0 0 0 −12.2984 12.2984i 0 0 0
557.4 0 0 0 0 0 −12.2984 12.2984i 0 0 0
557.5 0 0 0 0 0 12.2984 + 12.2984i 0 0 0
557.6 0 0 0 0 0 12.2984 + 12.2984i 0 0 0
557.7 0 0 0 0 0 17.1974 + 17.1974i 0 0 0
557.8 0 0 0 0 0 17.1974 + 17.1974i 0 0 0
593.1 0 0 0 0 0 −17.1974 + 17.1974i 0 0 0
593.2 0 0 0 0 0 −17.1974 + 17.1974i 0 0 0
593.3 0 0 0 0 0 −12.2984 + 12.2984i 0 0 0
593.4 0 0 0 0 0 −12.2984 + 12.2984i 0 0 0
593.5 0 0 0 0 0 12.2984 12.2984i 0 0 0
593.6 0 0 0 0 0 12.2984 12.2984i 0 0 0
593.7 0 0 0 0 0 17.1974 17.1974i 0 0 0
593.8 0 0 0 0 0 17.1974 17.1974i 0 0 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 557.8
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
3.b odd 2 1 inner
5.b even 2 1 inner
5.c odd 4 2 inner
15.d odd 2 1 inner
15.e even 4 2 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 900.4.j.c 16
3.b odd 2 1 inner 900.4.j.c 16
5.b even 2 1 inner 900.4.j.c 16
5.c odd 4 2 inner 900.4.j.c 16
15.d odd 2 1 inner 900.4.j.c 16
15.e even 4 2 inner 900.4.j.c 16
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
900.4.j.c 16 1.a even 1 1 trivial
900.4.j.c 16 3.b odd 2 1 inner
900.4.j.c 16 5.b even 2 1 inner
900.4.j.c 16 5.c odd 4 2 inner
900.4.j.c 16 15.d odd 2 1 inner
900.4.j.c 16 15.e even 4 2 inner

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{7}^{8} + 441378T_{7}^{4} + 32015587041 \) acting on \(S_{4}^{\mathrm{new}}(900, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{16} \) Copy content Toggle raw display
$3$ \( T^{16} \) Copy content Toggle raw display
$5$ \( T^{16} \) Copy content Toggle raw display
$7$ \( (T^{8} + 441378 T^{4} + 32015587041)^{2} \) Copy content Toggle raw display
$11$ \( (T^{4} + 5796 T^{2} + 5391684)^{4} \) Copy content Toggle raw display
$13$ \( (T^{8} + \cdots + 8610521428161)^{2} \) Copy content Toggle raw display
$17$ \( (T^{4} + 236196)^{4} \) Copy content Toggle raw display
$19$ \( (T^{4} + 2642 T^{2} + 1661521)^{4} \) Copy content Toggle raw display
$23$ \( (T^{8} + \cdots + 33\!\cdots\!16)^{2} \) Copy content Toggle raw display
$29$ \( (T^{4} - 20916 T^{2} + 108618084)^{4} \) Copy content Toggle raw display
$31$ \( (T^{2} + 196 T - 2141)^{8} \) Copy content Toggle raw display
$37$ \( (T^{8} + 12835906848 T^{4} + 892616806656)^{2} \) Copy content Toggle raw display
$41$ \( (T^{4} + 135504 T^{2} + 248629824)^{4} \) Copy content Toggle raw display
$43$ \( (T^{8} + \cdots + 751046357300625)^{2} \) Copy content Toggle raw display
$47$ \( (T^{8} + \cdots + 24\!\cdots\!56)^{2} \) Copy content Toggle raw display
$53$ \( (T^{8} + \cdots + 22\!\cdots\!00)^{2} \) Copy content Toggle raw display
$59$ \( (T^{4} - 701316 T^{2} + 78939645444)^{4} \) Copy content Toggle raw display
$61$ \( (T^{2} + 530 T - 185555)^{8} \) Copy content Toggle raw display
$67$ \( (T^{8} + \cdots + 67\!\cdots\!21)^{2} \) Copy content Toggle raw display
$71$ \( (T^{4} + 1293264 T^{2} + 391565565504)^{4} \) Copy content Toggle raw display
$73$ \( (T^{8} + \cdots + 37\!\cdots\!76)^{2} \) Copy content Toggle raw display
$79$ \( (T^{4} + 13640 T^{2} + 13104400)^{4} \) Copy content Toggle raw display
$83$ \( (T^{8} + \cdots + 20\!\cdots\!56)^{2} \) Copy content Toggle raw display
$89$ \( (T^{4} - 1474704 T^{2} + 358762665024)^{4} \) Copy content Toggle raw display
$97$ \( (T^{8} + \cdots + 11\!\cdots\!81)^{2} \) Copy content Toggle raw display
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