Properties

Label 1088.2.m.h
Level $1088$
Weight $2$
Character orbit 1088.m
Analytic conductor $8.688$
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] = [1088,2,Mod(225,1088)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1088, base_ring=CyclotomicField(4))
 
chi = DirichletCharacter(H, H._module([0, 2, 3]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("1088.225");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 1088 = 2^{6} \cdot 17 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 1088.m (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: \(8.68772373992\)
Analytic rank: \(0\)
Dimension: \(4\)
Relative dimension: \(2\) over \(\Q(i)\)
Coefficient field: \(\Q(i, \sqrt{7})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{4} - 3x^{2} + 4 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{9}]\)
Coefficient ring index: \( 2^{3} \)
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 \(1,\beta_1,\beta_2,\beta_3\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + ( - 2 \beta_1 + 2) q^{3} + \beta_{3} q^{5} - 5 \beta_1 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + ( - 2 \beta_1 + 2) q^{3} + \beta_{3} q^{5} - 5 \beta_1 q^{9} + ( - \beta_{3} + \beta_{2}) q^{13} + (2 \beta_{3} - 2 \beta_{2}) q^{15} + ( - 4 \beta_1 + 1) q^{17} + 2 q^{19} - 2 \beta_{3} q^{23} - 9 \beta_1 q^{25} + ( - 4 \beta_1 - 4) q^{27} + \beta_{3} q^{29} + 2 \beta_{2} q^{31} - \beta_{3} q^{37} + 4 \beta_{2} q^{39} + ( - 5 \beta_1 + 5) q^{41} - 10 q^{43} - 5 \beta_{2} q^{45} + ( - 2 \beta_{3} - 2 \beta_{2}) q^{47} + 7 \beta_1 q^{49} + ( - 10 \beta_1 - 6) q^{51} + ( - \beta_{3} - \beta_{2}) q^{53} + ( - 4 \beta_1 + 4) q^{57} + 2 q^{59} + 3 \beta_{2} q^{61} + (14 \beta_1 + 14) q^{65} + 10 \beta_1 q^{67} + ( - 4 \beta_{3} + 4 \beta_{2}) q^{69} - 2 \beta_{2} q^{71} + (3 \beta_1 + 3) q^{73} + ( - 18 \beta_1 - 18) q^{75} - q^{81} - 6 q^{83} + (\beta_{3} - 4 \beta_{2}) q^{85} + (2 \beta_{3} - 2 \beta_{2}) q^{87} - 12 q^{89} + (4 \beta_{3} + 4 \beta_{2}) q^{93} + 2 \beta_{3} q^{95} + (\beta_1 + 1) q^{97}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 4 q + 8 q^{3}+O(q^{10}) \) Copy content Toggle raw display \( 4 q + 8 q^{3} + 4 q^{17} + 8 q^{19} - 16 q^{27} + 20 q^{41} - 40 q^{43} - 24 q^{51} + 16 q^{57} + 8 q^{59} + 56 q^{65} + 12 q^{73} - 72 q^{75} - 4 q^{81} - 24 q^{83} - 48 q^{89} + 4 q^{97}+O(q^{100}) \) Copy content Toggle raw display

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

\(\beta_{1}\)\(=\) \( ( \nu^{3} - \nu ) / 2 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( -\nu^{3} + 4\nu^{2} + 5\nu - 6 ) / 2 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( -\nu^{3} - 4\nu^{2} + 5\nu + 6 ) / 2 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_{3} + \beta_{2} + 2\beta_1 ) / 4 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( -\beta_{3} + \beta_{2} + 6 ) / 4 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( \beta_{3} + \beta_{2} + 10\beta_1 ) / 4 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/1088\mathbb{Z}\right)^\times\).

\(n\) \(69\) \(511\) \(513\)
\(\chi(n)\) \(-1\) \(1\) \(\beta_{1}\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
225.1
−1.32288 0.500000i
1.32288 0.500000i
−1.32288 + 0.500000i
1.32288 + 0.500000i
0 2.00000 + 2.00000i 0 −2.64575 2.64575i 0 0 0 5.00000i 0
225.2 0 2.00000 + 2.00000i 0 2.64575 + 2.64575i 0 0 0 5.00000i 0
353.1 0 2.00000 2.00000i 0 −2.64575 + 2.64575i 0 0 0 5.00000i 0
353.2 0 2.00000 2.00000i 0 2.64575 2.64575i 0 0 0 5.00000i 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
8.d odd 2 1 inner
68.f odd 4 1 inner
136.i even 4 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 1088.2.m.h yes 4
4.b odd 2 1 1088.2.m.e 4
8.b even 2 1 1088.2.m.e 4
8.d odd 2 1 inner 1088.2.m.h yes 4
17.c even 4 1 1088.2.m.e 4
68.f odd 4 1 inner 1088.2.m.h yes 4
136.i even 4 1 inner 1088.2.m.h yes 4
136.j odd 4 1 1088.2.m.e 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
1088.2.m.e 4 4.b odd 2 1
1088.2.m.e 4 8.b even 2 1
1088.2.m.e 4 17.c even 4 1
1088.2.m.e 4 136.j odd 4 1
1088.2.m.h yes 4 1.a even 1 1 trivial
1088.2.m.h yes 4 8.d odd 2 1 inner
1088.2.m.h yes 4 68.f odd 4 1 inner
1088.2.m.h yes 4 136.i even 4 1 inner

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(1088, [\chi])\):

\( T_{3}^{2} - 4T_{3} + 8 \) Copy content Toggle raw display
\( T_{5}^{4} + 196 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{4} \) Copy content Toggle raw display
$3$ \( (T^{2} - 4 T + 8)^{2} \) Copy content Toggle raw display
$5$ \( T^{4} + 196 \) Copy content Toggle raw display
$7$ \( T^{4} \) Copy content Toggle raw display
$11$ \( T^{4} \) Copy content Toggle raw display
$13$ \( (T^{2} + 28)^{2} \) Copy content Toggle raw display
$17$ \( (T^{2} - 2 T + 17)^{2} \) Copy content Toggle raw display
$19$ \( (T - 2)^{4} \) Copy content Toggle raw display
$23$ \( T^{4} + 3136 \) Copy content Toggle raw display
$29$ \( T^{4} + 196 \) Copy content Toggle raw display
$31$ \( T^{4} + 3136 \) Copy content Toggle raw display
$37$ \( T^{4} + 196 \) Copy content Toggle raw display
$41$ \( (T^{2} - 10 T + 50)^{2} \) Copy content Toggle raw display
$43$ \( (T + 10)^{4} \) Copy content Toggle raw display
$47$ \( (T^{2} - 112)^{2} \) Copy content Toggle raw display
$53$ \( (T^{2} - 28)^{2} \) Copy content Toggle raw display
$59$ \( (T - 2)^{4} \) Copy content Toggle raw display
$61$ \( T^{4} + 15876 \) Copy content Toggle raw display
$67$ \( (T^{2} + 100)^{2} \) Copy content Toggle raw display
$71$ \( T^{4} + 3136 \) Copy content Toggle raw display
$73$ \( (T^{2} - 6 T + 18)^{2} \) Copy content Toggle raw display
$79$ \( T^{4} \) Copy content Toggle raw display
$83$ \( (T + 6)^{4} \) Copy content Toggle raw display
$89$ \( (T + 12)^{4} \) Copy content Toggle raw display
$97$ \( (T^{2} - 2 T + 2)^{2} \) Copy content Toggle raw display
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