Properties

Label 1800.4.f.ba
Level $1800$
Weight $4$
Character orbit 1800.f
Analytic conductor $106.203$
Analytic rank $0$
Dimension $6$
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] = [1800,4,Mod(649,1800)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1800, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([0, 0, 0, 1]))
 
N = Newforms(chi, 4, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("1800.649");
 
S:= CuspForms(chi, 4);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 1800 = 2^{3} \cdot 3^{2} \cdot 5^{2} \)
Weight: \( k \) \(=\) \( 4 \)
Character orbit: \([\chi]\) \(=\) 1800.f (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: \(106.203438010\)
Analytic rank: \(0\)
Dimension: \(6\)
Coefficient field: \(\mathbb{Q}[x]/(x^{6} + \cdots)\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{6} + 175x^{4} + 8109x^{2} + 72900 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{37}]\)
Coefficient ring index: \( 2^{6} \)
Twist minimal: yes
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 \(1,\beta_1,\ldots,\beta_{5}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + ( - \beta_{4} - 3 \beta_1) q^{7}+O(q^{10}) \) Copy content Toggle raw display \( q + ( - \beta_{4} - 3 \beta_1) q^{7} + ( - \beta_{3} + \beta_{2} - 3) q^{11} + (2 \beta_{5} + 5 \beta_1) q^{13} + (3 \beta_{5} + \beta_{4} + 15 \beta_1) q^{17} + ( - \beta_{3} + 2 \beta_{2} + 3) q^{19} + ( - \beta_{5} - 7 \beta_{4} - 13 \beta_1) q^{23} + ( - 7 \beta_{3} + 3 \beta_{2} - 1) q^{29} + (7 \beta_{3} - 4 \beta_{2} + 21) q^{31} + (4 \beta_{5} + 4 \beta_{4} + 2 \beta_1) q^{37} + ( - 11 \beta_{3} - \beta_{2} - 133) q^{41} + ( - 6 \beta_{5} - 7 \beta_{4} - 51 \beta_1) q^{43} + ( - 10 \beta_{5} + 10 \beta_{4} + 94 \beta_1) q^{47} + (4 \beta_{3} - 8 \beta_{2} - 34) q^{49} + (\beta_{5} - 13 \beta_{4} + 85 \beta_1) q^{53} + ( - 6 \beta_{3} - 10 \beta_{2} + 62) q^{59} + ( - 28 \beta_{3} + 6 \beta_{2} - 127) q^{61} + ( - 10 \beta_{5} - 13 \beta_{4} + 51 \beta_1) q^{67} + (5 \beta_{3} - 13 \beta_{2} - 425) q^{71} + ( - 4 \beta_{5} + 28 \beta_{4} + 134 \beta_1) q^{73} + ( - 5 \beta_{5} - 15 \beta_{4} + 247 \beta_1) q^{77} + ( - 12 \beta_{3} + 4 \beta_{2} + 96) q^{79} + (14 \beta_{5} + 18 \beta_{4} + 470 \beta_1) q^{83} + (24 \beta_{3} - 8 \beta_{2} + 312) q^{89} + (27 \beta_{3} + 26 \beta_{2} + 275) q^{91} + ( - 16 \beta_{5} + 36 \beta_{4} - 227 \beta_1) q^{97}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 6 q+O(q^{10}) \) Copy content Toggle raw display \( 6 q - 16 q^{11} + 22 q^{19} + 118 q^{31} - 800 q^{41} - 220 q^{49} + 352 q^{59} - 750 q^{61} - 2576 q^{71} + 584 q^{79} + 1856 q^{89} + 1702 q^{91}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{6} + 175x^{4} + 8109x^{2} + 72900 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( -\nu^{5} + 95\nu^{3} + 15651\nu ) / 49410 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( -2\nu^{4} + 190\nu^{2} + 20871 ) / 549 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( 10\nu^{4} + 1246\nu^{2} + 24660 ) / 549 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( 14\nu^{5} + 1964\nu^{3} + 50994\nu ) / 4941 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( 47\nu^{5} + 6515\nu^{3} + 230643\nu ) / 16470 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_{5} - \beta_{4} + \beta_1 ) / 4 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( \beta_{3} + 5\beta_{2} - 235 ) / 4 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( -41\beta_{5} + 44\beta_{4} + 379\beta_1 ) / 2 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( ( 95\beta_{3} - 623\beta_{2} + 19417 ) / 4 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( 7861\beta_{5} - 7291\beta_{4} - 109979\beta_1 ) / 4 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/1800\mathbb{Z}\right)^\times\).

\(n\) \(577\) \(901\) \(1001\) \(1351\)
\(\chi(n)\) \(-1\) \(1\) \(1\) \(1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
649.1
3.43305i
7.73485i
10.1679i
10.1679i
7.73485i
3.43305i
0 0 0 0 0 23.6993i 0 0 0
649.2 0 0 0 0 0 22.6681i 0 0 0
649.3 0 0 0 0 0 7.96885i 0 0 0
649.4 0 0 0 0 0 7.96885i 0 0 0
649.5 0 0 0 0 0 22.6681i 0 0 0
649.6 0 0 0 0 0 23.6993i 0 0 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 649.6
Significant digits:
Format:

Inner twists

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

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 1800.4.f.ba 6
3.b odd 2 1 1800.4.f.bb 6
5.b even 2 1 inner 1800.4.f.ba 6
5.c odd 4 1 1800.4.a.br 3
5.c odd 4 1 1800.4.a.bt yes 3
15.d odd 2 1 1800.4.f.bb 6
15.e even 4 1 1800.4.a.bs yes 3
15.e even 4 1 1800.4.a.bu yes 3
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
1800.4.a.br 3 5.c odd 4 1
1800.4.a.bs yes 3 15.e even 4 1
1800.4.a.bt yes 3 5.c odd 4 1
1800.4.a.bu yes 3 15.e even 4 1
1800.4.f.ba 6 1.a even 1 1 trivial
1800.4.f.ba 6 5.b even 2 1 inner
1800.4.f.bb 6 3.b odd 2 1
1800.4.f.bb 6 15.d odd 2 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{4}^{\mathrm{new}}(1800, [\chi])\):

\( T_{7}^{6} + 1139T_{7}^{4} + 356899T_{7}^{2} + 18326961 \) Copy content Toggle raw display
\( T_{11}^{3} + 8T_{11}^{2} - 1376T_{11} + 11712 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{6} \) Copy content Toggle raw display
$3$ \( T^{6} \) Copy content Toggle raw display
$5$ \( T^{6} \) Copy content Toggle raw display
$7$ \( T^{6} + 1139 T^{4} + \cdots + 18326961 \) Copy content Toggle raw display
$11$ \( (T^{3} + 8 T^{2} + \cdots + 11712)^{2} \) Copy content Toggle raw display
$13$ \( T^{6} + \cdots + 4431964329 \) Copy content Toggle raw display
$17$ \( T^{6} + 26624 T^{4} + \cdots + 691900416 \) Copy content Toggle raw display
$19$ \( (T^{3} - 11 T^{2} + \cdots + 137891)^{2} \) Copy content Toggle raw display
$23$ \( T^{6} + \cdots + 118512193536 \) Copy content Toggle raw display
$29$ \( (T^{3} - 30016 T - 1273920)^{2} \) Copy content Toggle raw display
$31$ \( (T^{3} - 59 T^{2} + \cdots + 1145475)^{2} \) Copy content Toggle raw display
$37$ \( T^{6} + \cdots + 5207706561600 \) Copy content Toggle raw display
$41$ \( (T^{3} + 400 T^{2} + \cdots - 8631360)^{2} \) Copy content Toggle raw display
$43$ \( T^{6} + \cdots + 30168929390625 \) Copy content Toggle raw display
$47$ \( T^{6} + \cdots + 12217988939776 \) Copy content Toggle raw display
$53$ \( T^{6} + \cdots + 1078540406784 \) Copy content Toggle raw display
$59$ \( (T^{3} - 176 T^{2} + \cdots + 27431424)^{2} \) Copy content Toggle raw display
$61$ \( (T^{3} + 375 T^{2} + \cdots - 151917099)^{2} \) Copy content Toggle raw display
$67$ \( T^{6} + \cdots + 44\!\cdots\!89 \) Copy content Toggle raw display
$71$ \( (T^{3} + 1288 T^{2} + \cdots - 35439552)^{2} \) Copy content Toggle raw display
$73$ \( T^{6} + \cdots + 21\!\cdots\!84 \) Copy content Toggle raw display
$79$ \( (T^{3} - 292 T^{2} + \cdots - 868032)^{2} \) Copy content Toggle raw display
$83$ \( T^{6} + \cdots + 16405999386624 \) Copy content Toggle raw display
$89$ \( (T^{3} - 928 T^{2} + \cdots + 132710400)^{2} \) Copy content Toggle raw display
$97$ \( T^{6} + \cdots + 120967376199289 \) Copy content Toggle raw display
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