Properties

Label 1600.3.b.g
Level $1600$
Weight $3$
Character orbit 1600.b
Analytic conductor $43.597$
Analytic rank $0$
Dimension $2$
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] = [1600,3,Mod(1151,1600)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1600, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([1, 0, 0]))
 
N = Newforms(chi, 3, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("1600.1151");
 
S:= CuspForms(chi, 3);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 1600 = 2^{6} \cdot 5^{2} \)
Weight: \( k \) \(=\) \( 3 \)
Character orbit: \([\chi]\) \(=\) 1600.b (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: \(43.5968422976\)
Analytic rank: \(0\)
Dimension: \(2\)
Coefficient field: \(\Q(\sqrt{-15}) \)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{2} - x + 4 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2, a_3]\)
Coefficient ring index: \( 2 \)
Twist minimal: no (minimal twist has level 400)
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 \(\beta = \sqrt{-15}\). We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q - \beta q^{3} - 2 \beta q^{7} - 6 q^{9} +O(q^{10}) \) Copy content Toggle raw display \( q - \beta q^{3} - 2 \beta q^{7} - 6 q^{9} + 5 \beta q^{11} - 20 q^{13} + 15 q^{17} + 5 \beta q^{19} - 30 q^{21} + 2 \beta q^{23} - 3 \beta q^{27} + 48 q^{29} + 10 \beta q^{31} + 75 q^{33} - 10 q^{37} + 20 \beta q^{39} + 33 q^{41} + 16 \beta q^{43} + 4 \beta q^{47} - 11 q^{49} - 15 \beta q^{51} - 30 q^{53} + 75 q^{57} + 20 \beta q^{59} - 38 q^{61} + 12 \beta q^{63} - 15 \beta q^{67} + 30 q^{69} - 20 \beta q^{71} + 5 q^{73} + 150 q^{77} - 10 \beta q^{79} - 99 q^{81} - 3 \beta q^{83} - 48 \beta q^{87} + 87 q^{89} + 40 \beta q^{91} + 150 q^{93} + 110 q^{97} - 30 \beta q^{99} +O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2 q - 12 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 2 q - 12 q^{9} - 40 q^{13} + 30 q^{17} - 60 q^{21} + 96 q^{29} + 150 q^{33} - 20 q^{37} + 66 q^{41} - 22 q^{49} - 60 q^{53} + 150 q^{57} - 76 q^{61} + 60 q^{69} + 10 q^{73} + 300 q^{77} - 198 q^{81} + 174 q^{89} + 300 q^{93} + 220 q^{97}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/1600\mathbb{Z}\right)^\times\).

\(n\) \(577\) \(901\) \(1151\)
\(\chi(n)\) \(1\) \(1\) \(-1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
1151.1
0.500000 + 1.93649i
0.500000 1.93649i
0 3.87298i 0 0 0 7.74597i 0 −6.00000 0
1151.2 0 3.87298i 0 0 0 7.74597i 0 −6.00000 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

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 1600.3.b.g 2
4.b odd 2 1 inner 1600.3.b.g 2
5.b even 2 1 1600.3.b.h 2
5.c odd 4 2 1600.3.h.i 4
8.b even 2 1 400.3.b.d yes 2
8.d odd 2 1 400.3.b.d yes 2
20.d odd 2 1 1600.3.b.h 2
20.e even 4 2 1600.3.h.i 4
24.f even 2 1 3600.3.e.v 2
24.h odd 2 1 3600.3.e.v 2
40.e odd 2 1 400.3.b.c 2
40.f even 2 1 400.3.b.c 2
40.i odd 4 2 400.3.h.c 4
40.k even 4 2 400.3.h.c 4
120.i odd 2 1 3600.3.e.i 2
120.m even 2 1 3600.3.e.i 2
120.q odd 4 2 3600.3.j.b 4
120.w even 4 2 3600.3.j.b 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
400.3.b.c 2 40.e odd 2 1
400.3.b.c 2 40.f even 2 1
400.3.b.d yes 2 8.b even 2 1
400.3.b.d yes 2 8.d odd 2 1
400.3.h.c 4 40.i odd 4 2
400.3.h.c 4 40.k even 4 2
1600.3.b.g 2 1.a even 1 1 trivial
1600.3.b.g 2 4.b odd 2 1 inner
1600.3.b.h 2 5.b even 2 1
1600.3.b.h 2 20.d odd 2 1
1600.3.h.i 4 5.c odd 4 2
1600.3.h.i 4 20.e even 4 2
3600.3.e.i 2 120.i odd 2 1
3600.3.e.i 2 120.m even 2 1
3600.3.e.v 2 24.f even 2 1
3600.3.e.v 2 24.h odd 2 1
3600.3.j.b 4 120.q odd 4 2
3600.3.j.b 4 120.w even 4 2

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{3}^{\mathrm{new}}(1600, [\chi])\):

\( T_{3}^{2} + 15 \) Copy content Toggle raw display
\( T_{7}^{2} + 60 \) Copy content Toggle raw display
\( T_{13} + 20 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{2} \) Copy content Toggle raw display
$3$ \( T^{2} + 15 \) Copy content Toggle raw display
$5$ \( T^{2} \) Copy content Toggle raw display
$7$ \( T^{2} + 60 \) Copy content Toggle raw display
$11$ \( T^{2} + 375 \) Copy content Toggle raw display
$13$ \( (T + 20)^{2} \) Copy content Toggle raw display
$17$ \( (T - 15)^{2} \) Copy content Toggle raw display
$19$ \( T^{2} + 375 \) Copy content Toggle raw display
$23$ \( T^{2} + 60 \) Copy content Toggle raw display
$29$ \( (T - 48)^{2} \) Copy content Toggle raw display
$31$ \( T^{2} + 1500 \) Copy content Toggle raw display
$37$ \( (T + 10)^{2} \) Copy content Toggle raw display
$41$ \( (T - 33)^{2} \) Copy content Toggle raw display
$43$ \( T^{2} + 3840 \) Copy content Toggle raw display
$47$ \( T^{2} + 240 \) Copy content Toggle raw display
$53$ \( (T + 30)^{2} \) Copy content Toggle raw display
$59$ \( T^{2} + 6000 \) Copy content Toggle raw display
$61$ \( (T + 38)^{2} \) Copy content Toggle raw display
$67$ \( T^{2} + 3375 \) Copy content Toggle raw display
$71$ \( T^{2} + 6000 \) Copy content Toggle raw display
$73$ \( (T - 5)^{2} \) Copy content Toggle raw display
$79$ \( T^{2} + 1500 \) Copy content Toggle raw display
$83$ \( T^{2} + 135 \) Copy content Toggle raw display
$89$ \( (T - 87)^{2} \) Copy content Toggle raw display
$97$ \( (T - 110)^{2} \) Copy content Toggle raw display
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