Properties

Label 252.6.k.d
Level $252$
Weight $6$
Character orbit 252.k
Analytic conductor $40.417$
Analytic rank $0$
Dimension $4$
CM no
Inner twists $2$

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Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [252,6,Mod(37,252)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(252, base_ring=CyclotomicField(6))
 
chi = DirichletCharacter(H, H._module([0, 0, 2]))
 
N = Newforms(chi, 6, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("252.37");
 
S:= CuspForms(chi, 6);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 252 = 2^{2} \cdot 3^{2} \cdot 7 \)
Weight: \( k \) \(=\) \( 6 \)
Character orbit: \([\chi]\) \(=\) 252.k (of order \(3\), 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: \(40.4167225929\)
Analytic rank: \(0\)
Dimension: \(4\)
Relative dimension: \(2\) over \(\Q(\zeta_{3})\)
Coefficient field: \(\Q(\sqrt{-3}, \sqrt{109})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{4} - x^{3} + 28x^{2} + 27x + 729 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{19}]\)
Coefficient ring index: \( 2^{2}\cdot 3 \)
Twist minimal: no (minimal twist has level 28)
Sato-Tate group: $\mathrm{SU}(2)[C_{3}]$

$q$-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 \(1,\beta_1,\beta_2,\beta_3\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + (2 \beta_{3} - 2 \beta_{2} + 21 \beta_1) q^{5} + ( - 7 \beta_{3} + 28) q^{7}+O(q^{10}) \) Copy content Toggle raw display \( q + (2 \beta_{3} - 2 \beta_{2} + 21 \beta_1) q^{5} + ( - 7 \beta_{3} + 28) q^{7} + ( - 14 \beta_{3} - 7 \beta_{2} + \cdots + 330) q^{11}+ \cdots + ( - 2320 \beta_{3} - 4640 \beta_{2} + 4130) q^{97}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 4 q + 42 q^{5} + 112 q^{7}+O(q^{10}) \) Copy content Toggle raw display \( 4 q + 42 q^{5} + 112 q^{7} + 660 q^{11} - 1288 q^{13} - 210 q^{17} - 3724 q^{19} + 24 q^{23} - 2480 q^{25} - 11064 q^{29} - 2800 q^{31} + 28644 q^{35} + 13238 q^{37} - 8232 q^{41} + 26864 q^{43} + 8064 q^{47} - 60956 q^{49} - 53958 q^{53} + 82656 q^{55} + 36036 q^{59} - 83986 q^{61} - 76308 q^{65} + 2660 q^{67} - 143136 q^{71} - 31318 q^{73} - 77658 q^{77} - 51136 q^{79} - 12432 q^{83} + 53964 q^{85} + 166278 q^{89} - 36064 q^{91} + 66432 q^{95} + 16520 q^{97}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{4} - x^{3} + 28x^{2} + 27x + 729 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( -\nu^{3} + 28\nu^{2} - 28\nu + 729 ) / 756 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( 53\nu^{3} + 28\nu^{2} - 1540\nu + 2943 ) / 756 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( 2\nu^{3} - 2\nu^{2} + 110\nu + 27 ) / 27 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_{3} - \beta_{2} + 3\beta_1 ) / 6 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( 2\beta_{3} + \beta_{2} + 165\beta _1 - 165 ) / 6 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( 14\beta_{3} + 28\beta_{2} - 123 ) / 3 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/252\mathbb{Z}\right)^\times\).

\(n\) \(29\) \(73\) \(127\)
\(\chi(n)\) \(1\) \(-\beta_{1}\) \(1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
37.1
−2.36008 + 4.08777i
2.86008 4.95380i
−2.36008 4.08777i
2.86008 + 4.95380i
0 0 0 −20.8209 + 36.0629i 0 28.0000 126.582i 0 0 0
37.2 0 0 0 41.8209 72.4360i 0 28.0000 + 126.582i 0 0 0
109.1 0 0 0 −20.8209 36.0629i 0 28.0000 + 126.582i 0 0 0
109.2 0 0 0 41.8209 + 72.4360i 0 28.0000 126.582i 0 0 0
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
7.c even 3 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 252.6.k.d 4
3.b odd 2 1 28.6.e.b 4
7.c even 3 1 inner 252.6.k.d 4
12.b even 2 1 112.6.i.e 4
21.c even 2 1 196.6.e.k 4
21.g even 6 1 196.6.a.h 2
21.g even 6 1 196.6.e.k 4
21.h odd 6 1 28.6.e.b 4
21.h odd 6 1 196.6.a.j 2
84.j odd 6 1 784.6.a.bd 2
84.n even 6 1 112.6.i.e 4
84.n even 6 1 784.6.a.o 2
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
28.6.e.b 4 3.b odd 2 1
28.6.e.b 4 21.h odd 6 1
112.6.i.e 4 12.b even 2 1
112.6.i.e 4 84.n even 6 1
196.6.a.h 2 21.g even 6 1
196.6.a.j 2 21.h odd 6 1
196.6.e.k 4 21.c even 2 1
196.6.e.k 4 21.g even 6 1
252.6.k.d 4 1.a even 1 1 trivial
252.6.k.d 4 7.c even 3 1 inner
784.6.a.o 2 84.n even 6 1
784.6.a.bd 2 84.j odd 6 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{5}^{4} - 42T_{5}^{3} + 5247T_{5}^{2} + 146286T_{5} + 12131289 \) acting on \(S_{6}^{\mathrm{new}}(252, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{4} \) Copy content Toggle raw display
$3$ \( T^{4} \) Copy content Toggle raw display
$5$ \( T^{4} - 42 T^{3} + \cdots + 12131289 \) Copy content Toggle raw display
$7$ \( (T^{2} - 56 T + 16807)^{2} \) Copy content Toggle raw display
$11$ \( T^{4} + \cdots + 3700410561 \) Copy content Toggle raw display
$13$ \( (T^{2} + 644 T - 147452)^{2} \) Copy content Toggle raw display
$17$ \( T^{4} + \cdots + 2678994081 \) Copy content Toggle raw display
$19$ \( T^{4} + \cdots + 11959250986225 \) Copy content Toggle raw display
$23$ \( T^{4} + \cdots + 5547141326169 \) Copy content Toggle raw display
$29$ \( (T^{2} + 5532 T - 4654908)^{2} \) Copy content Toggle raw display
$31$ \( T^{4} + \cdots + 370117150388041 \) Copy content Toggle raw display
$37$ \( T^{4} + \cdots + 11\!\cdots\!69 \) Copy content Toggle raw display
$41$ \( (T^{2} + 4116 T - 68342940)^{2} \) Copy content Toggle raw display
$43$ \( (T - 6716)^{4} \) Copy content Toggle raw display
$47$ \( T^{4} + \cdots + 27\!\cdots\!69 \) Copy content Toggle raw display
$53$ \( T^{4} + \cdots + 48\!\cdots\!09 \) Copy content Toggle raw display
$59$ \( T^{4} + \cdots + 323868145417569 \) Copy content Toggle raw display
$61$ \( T^{4} + \cdots + 31\!\cdots\!09 \) Copy content Toggle raw display
$67$ \( T^{4} + \cdots + 14\!\cdots\!41 \) Copy content Toggle raw display
$71$ \( (T^{2} + 71568 T - 491520960)^{2} \) Copy content Toggle raw display
$73$ \( T^{4} + \cdots + 99\!\cdots\!61 \) Copy content Toggle raw display
$79$ \( T^{4} + \cdots + 17\!\cdots\!89 \) Copy content Toggle raw display
$83$ \( (T^{2} + 6216 T - 1440901872)^{2} \) Copy content Toggle raw display
$89$ \( T^{4} + \cdots + 43\!\cdots\!25 \) Copy content Toggle raw display
$97$ \( (T^{2} - 8260 T - 5263077500)^{2} \) Copy content Toggle raw display
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