Properties

Label 224.2.i.c
Level $224$
Weight $2$
Character orbit 224.i
Analytic conductor $1.789$
Analytic rank $0$
Dimension $4$
CM no
Inner twists $4$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [224,2,Mod(65,224)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(224, base_ring=CyclotomicField(6))
 
chi = DirichletCharacter(H, H._module([0, 0, 2]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("224.65");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 224 = 2^{5} \cdot 7 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 224.i (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: \(1.78864900528\)
Analytic rank: \(0\)
Dimension: \(4\)
Relative dimension: \(2\) over \(\Q(\zeta_{3})\)
Coefficient field: \(\Q(\sqrt{-3}, \sqrt{7})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{4} + 7x^{2} + 49 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{5}]\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
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.

\(f(q)\) \(=\) \( q + \beta_1 q^{3} - 3 \beta_{2} q^{5} - \beta_{3} q^{7} + 4 \beta_{2} q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + \beta_1 q^{3} - 3 \beta_{2} q^{5} - \beta_{3} q^{7} + 4 \beta_{2} q^{9} - \beta_1 q^{11} - 4 q^{13} - 3 \beta_{3} q^{15} + ( - \beta_{2} - 1) q^{17} + (3 \beta_{3} + 3 \beta_1) q^{19} + (7 \beta_{2} + 7) q^{21} + (\beta_{3} + \beta_1) q^{23} + ( - 4 \beta_{2} - 4) q^{25} + \beta_{3} q^{27} - 4 q^{29} - \beta_1 q^{31} - 7 \beta_{2} q^{33} + ( - 3 \beta_{3} - 3 \beta_1) q^{35} - 5 \beta_{2} q^{37} - 4 \beta_1 q^{39} + 8 q^{41} + 4 \beta_{3} q^{43} + (12 \beta_{2} + 12) q^{45} + ( - \beta_{3} - \beta_1) q^{47} + 7 q^{49} + ( - \beta_{3} - \beta_1) q^{51} + ( - 7 \beta_{2} - 7) q^{53} + 3 \beta_{3} q^{55} - 21 q^{57} + \beta_1 q^{59} - 5 \beta_{2} q^{61} + (4 \beta_{3} + 4 \beta_1) q^{63} + 12 \beta_{2} q^{65} + \beta_1 q^{67} - 7 q^{69} + (9 \beta_{2} + 9) q^{73} + ( - 4 \beta_{3} - 4 \beta_1) q^{75} + ( - 7 \beta_{2} - 7) q^{77} + (\beta_{3} + \beta_1) q^{79} + (5 \beta_{2} + 5) q^{81} - 4 \beta_{3} q^{83} - 3 q^{85} - 4 \beta_1 q^{87} - 9 \beta_{2} q^{89} + 4 \beta_{3} q^{91} - 7 \beta_{2} q^{93} + 9 \beta_1 q^{95} - 8 q^{97} - 4 \beta_{3} q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 4 q + 6 q^{5} - 8 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 4 q + 6 q^{5} - 8 q^{9} - 16 q^{13} - 2 q^{17} + 14 q^{21} - 8 q^{25} - 16 q^{29} + 14 q^{33} + 10 q^{37} + 32 q^{41} + 24 q^{45} + 28 q^{49} - 14 q^{53} - 84 q^{57} + 10 q^{61} - 24 q^{65} - 28 q^{69} + 18 q^{73} - 14 q^{77} + 10 q^{81} - 12 q^{85} + 18 q^{89} + 14 q^{93} - 32 q^{97}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{4} + 7x^{2} + 49 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( \nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( \nu^{2} ) / 7 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( \nu^{3} ) / 7 \) Copy content Toggle raw display
\(\nu\)\(=\) \( \beta_1 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( 7\beta_{2} \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( 7\beta_{3} \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/224\mathbb{Z}\right)^\times\).

\(n\) \(127\) \(129\) \(197\)
\(\chi(n)\) \(1\) \(\beta_{2}\) \(1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
65.1
−1.32288 2.29129i
1.32288 + 2.29129i
−1.32288 + 2.29129i
1.32288 2.29129i
0 −1.32288 2.29129i 0 1.50000 2.59808i 0 −2.64575 0 −2.00000 + 3.46410i 0
65.2 0 1.32288 + 2.29129i 0 1.50000 2.59808i 0 2.64575 0 −2.00000 + 3.46410i 0
193.1 0 −1.32288 + 2.29129i 0 1.50000 + 2.59808i 0 −2.64575 0 −2.00000 3.46410i 0
193.2 0 1.32288 2.29129i 0 1.50000 + 2.59808i 0 2.64575 0 −2.00000 3.46410i 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
4.b odd 2 1 inner
7.c even 3 1 inner
28.g odd 6 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 224.2.i.c 4
3.b odd 2 1 2016.2.s.o 4
4.b odd 2 1 inner 224.2.i.c 4
7.b odd 2 1 1568.2.i.p 4
7.c even 3 1 inner 224.2.i.c 4
7.c even 3 1 1568.2.a.m 2
7.d odd 6 1 1568.2.a.t 2
7.d odd 6 1 1568.2.i.p 4
8.b even 2 1 448.2.i.h 4
8.d odd 2 1 448.2.i.h 4
12.b even 2 1 2016.2.s.o 4
21.h odd 6 1 2016.2.s.o 4
28.d even 2 1 1568.2.i.p 4
28.f even 6 1 1568.2.a.t 2
28.f even 6 1 1568.2.i.p 4
28.g odd 6 1 inner 224.2.i.c 4
28.g odd 6 1 1568.2.a.m 2
56.j odd 6 1 3136.2.a.bg 2
56.k odd 6 1 448.2.i.h 4
56.k odd 6 1 3136.2.a.bv 2
56.m even 6 1 3136.2.a.bg 2
56.p even 6 1 448.2.i.h 4
56.p even 6 1 3136.2.a.bv 2
84.n even 6 1 2016.2.s.o 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
224.2.i.c 4 1.a even 1 1 trivial
224.2.i.c 4 4.b odd 2 1 inner
224.2.i.c 4 7.c even 3 1 inner
224.2.i.c 4 28.g odd 6 1 inner
448.2.i.h 4 8.b even 2 1
448.2.i.h 4 8.d odd 2 1
448.2.i.h 4 56.k odd 6 1
448.2.i.h 4 56.p even 6 1
1568.2.a.m 2 7.c even 3 1
1568.2.a.m 2 28.g odd 6 1
1568.2.a.t 2 7.d odd 6 1
1568.2.a.t 2 28.f even 6 1
1568.2.i.p 4 7.b odd 2 1
1568.2.i.p 4 7.d odd 6 1
1568.2.i.p 4 28.d even 2 1
1568.2.i.p 4 28.f even 6 1
2016.2.s.o 4 3.b odd 2 1
2016.2.s.o 4 12.b even 2 1
2016.2.s.o 4 21.h odd 6 1
2016.2.s.o 4 84.n even 6 1
3136.2.a.bg 2 56.j odd 6 1
3136.2.a.bg 2 56.m even 6 1
3136.2.a.bv 2 56.k odd 6 1
3136.2.a.bv 2 56.p even 6 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{3}^{4} + 7T_{3}^{2} + 49 \) acting on \(S_{2}^{\mathrm{new}}(224, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{4} \) Copy content Toggle raw display
$3$ \( T^{4} + 7T^{2} + 49 \) Copy content Toggle raw display
$5$ \( (T^{2} - 3 T + 9)^{2} \) Copy content Toggle raw display
$7$ \( (T^{2} - 7)^{2} \) Copy content Toggle raw display
$11$ \( T^{4} + 7T^{2} + 49 \) Copy content Toggle raw display
$13$ \( (T + 4)^{4} \) Copy content Toggle raw display
$17$ \( (T^{2} + T + 1)^{2} \) Copy content Toggle raw display
$19$ \( T^{4} + 63T^{2} + 3969 \) Copy content Toggle raw display
$23$ \( T^{4} + 7T^{2} + 49 \) Copy content Toggle raw display
$29$ \( (T + 4)^{4} \) Copy content Toggle raw display
$31$ \( T^{4} + 7T^{2} + 49 \) Copy content Toggle raw display
$37$ \( (T^{2} - 5 T + 25)^{2} \) Copy content Toggle raw display
$41$ \( (T - 8)^{4} \) Copy content Toggle raw display
$43$ \( (T^{2} - 112)^{2} \) Copy content Toggle raw display
$47$ \( T^{4} + 7T^{2} + 49 \) Copy content Toggle raw display
$53$ \( (T^{2} + 7 T + 49)^{2} \) Copy content Toggle raw display
$59$ \( T^{4} + 7T^{2} + 49 \) Copy content Toggle raw display
$61$ \( (T^{2} - 5 T + 25)^{2} \) Copy content Toggle raw display
$67$ \( T^{4} + 7T^{2} + 49 \) Copy content Toggle raw display
$71$ \( T^{4} \) Copy content Toggle raw display
$73$ \( (T^{2} - 9 T + 81)^{2} \) Copy content Toggle raw display
$79$ \( T^{4} + 7T^{2} + 49 \) Copy content Toggle raw display
$83$ \( (T^{2} - 112)^{2} \) Copy content Toggle raw display
$89$ \( (T^{2} - 9 T + 81)^{2} \) Copy content Toggle raw display
$97$ \( (T + 8)^{4} \) Copy content Toggle raw display
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