Properties

Label 3900.2.j.e
Level $3900$
Weight $2$
Character orbit 3900.j
Analytic conductor $31.142$
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] = [3900,2,Mod(649,3900)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(3900, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([0, 0, 1, 1]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("3900.649");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 3900 = 2^{2} \cdot 3 \cdot 5^{2} \cdot 13 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 3900.j (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: \(31.1416567883\)
Analytic rank: \(0\)
Dimension: \(2\)
Coefficient field: \(\Q(\sqrt{-1}) \)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{2} + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2, a_3]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 156)
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 \(i = \sqrt{-1}\). We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + i q^{3} + 4 q^{7} - q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + i q^{3} + 4 q^{7} - q^{9} - 6 i q^{11} + (3 i + 2) q^{13} + 2 i q^{17} + 4 i q^{21} - 8 i q^{23} - i q^{27} - 2 q^{29} - 8 i q^{31} + 6 q^{33} + 8 q^{37} + (2 i - 3) q^{39} - 2 i q^{41} - 8 i q^{43} - 6 q^{47} + 9 q^{49} - 2 q^{51} + 6 i q^{53} + 2 i q^{59} + 2 q^{61} - 4 q^{63} + 4 q^{67} + 8 q^{69} + 6 i q^{71} + 4 q^{73} - 24 i q^{77} + q^{81} - 14 q^{83} - 2 i q^{87} - 6 i q^{89} + (12 i + 8) q^{91} + 8 q^{93} - 12 q^{97} + 6 i q^{99} +O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2 q + 8 q^{7} - 2 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 2 q + 8 q^{7} - 2 q^{9} + 4 q^{13} - 4 q^{29} + 12 q^{33} + 16 q^{37} - 6 q^{39} - 12 q^{47} + 18 q^{49} - 4 q^{51} + 4 q^{61} - 8 q^{63} + 8 q^{67} + 16 q^{69} + 8 q^{73} + 2 q^{81} - 28 q^{83} + 16 q^{91} + 16 q^{93} - 24 q^{97}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/3900\mathbb{Z}\right)^\times\).

\(n\) \(301\) \(1301\) \(1951\) \(3277\)
\(\chi(n)\) \(-1\) \(1\) \(1\) \(-1\)

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
1.00000i
1.00000i
0 1.00000i 0 0 0 4.00000 0 −1.00000 0
649.2 0 1.00000i 0 0 0 4.00000 0 −1.00000 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
65.d even 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 3900.2.j.e 2
5.b even 2 1 3900.2.j.b 2
5.c odd 4 1 156.2.b.b 2
5.c odd 4 1 3900.2.c.a 2
13.b even 2 1 3900.2.j.b 2
15.e even 4 1 468.2.b.c 2
20.e even 4 1 624.2.c.d 2
35.f even 4 1 7644.2.e.b 2
40.i odd 4 1 2496.2.c.b 2
40.k even 4 1 2496.2.c.i 2
60.l odd 4 1 1872.2.c.h 2
65.d even 2 1 inner 3900.2.j.e 2
65.f even 4 1 2028.2.a.d 1
65.h odd 4 1 156.2.b.b 2
65.h odd 4 1 3900.2.c.a 2
65.k even 4 1 2028.2.a.f 1
65.o even 12 2 2028.2.i.d 2
65.q odd 12 2 2028.2.q.e 4
65.r odd 12 2 2028.2.q.e 4
65.t even 12 2 2028.2.i.a 2
195.j odd 4 1 6084.2.a.d 1
195.s even 4 1 468.2.b.c 2
195.u odd 4 1 6084.2.a.n 1
260.l odd 4 1 8112.2.a.d 1
260.p even 4 1 624.2.c.d 2
260.s odd 4 1 8112.2.a.l 1
455.s even 4 1 7644.2.e.b 2
520.bc even 4 1 2496.2.c.i 2
520.bg odd 4 1 2496.2.c.b 2
780.w odd 4 1 1872.2.c.h 2
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
156.2.b.b 2 5.c odd 4 1
156.2.b.b 2 65.h odd 4 1
468.2.b.c 2 15.e even 4 1
468.2.b.c 2 195.s even 4 1
624.2.c.d 2 20.e even 4 1
624.2.c.d 2 260.p even 4 1
1872.2.c.h 2 60.l odd 4 1
1872.2.c.h 2 780.w odd 4 1
2028.2.a.d 1 65.f even 4 1
2028.2.a.f 1 65.k even 4 1
2028.2.i.a 2 65.t even 12 2
2028.2.i.d 2 65.o even 12 2
2028.2.q.e 4 65.q odd 12 2
2028.2.q.e 4 65.r odd 12 2
2496.2.c.b 2 40.i odd 4 1
2496.2.c.b 2 520.bg odd 4 1
2496.2.c.i 2 40.k even 4 1
2496.2.c.i 2 520.bc even 4 1
3900.2.c.a 2 5.c odd 4 1
3900.2.c.a 2 65.h odd 4 1
3900.2.j.b 2 5.b even 2 1
3900.2.j.b 2 13.b even 2 1
3900.2.j.e 2 1.a even 1 1 trivial
3900.2.j.e 2 65.d even 2 1 inner
6084.2.a.d 1 195.j odd 4 1
6084.2.a.n 1 195.u odd 4 1
7644.2.e.b 2 35.f even 4 1
7644.2.e.b 2 455.s even 4 1
8112.2.a.d 1 260.l odd 4 1
8112.2.a.l 1 260.s odd 4 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(3900, [\chi])\):

\( T_{7} - 4 \) Copy content Toggle raw display
\( T_{11}^{2} + 36 \) Copy content Toggle raw display
\( T_{37} - 8 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{2} \) Copy content Toggle raw display
$3$ \( T^{2} + 1 \) Copy content Toggle raw display
$5$ \( T^{2} \) Copy content Toggle raw display
$7$ \( (T - 4)^{2} \) Copy content Toggle raw display
$11$ \( T^{2} + 36 \) Copy content Toggle raw display
$13$ \( T^{2} - 4T + 13 \) Copy content Toggle raw display
$17$ \( T^{2} + 4 \) Copy content Toggle raw display
$19$ \( T^{2} \) Copy content Toggle raw display
$23$ \( T^{2} + 64 \) Copy content Toggle raw display
$29$ \( (T + 2)^{2} \) Copy content Toggle raw display
$31$ \( T^{2} + 64 \) Copy content Toggle raw display
$37$ \( (T - 8)^{2} \) Copy content Toggle raw display
$41$ \( T^{2} + 4 \) Copy content Toggle raw display
$43$ \( T^{2} + 64 \) Copy content Toggle raw display
$47$ \( (T + 6)^{2} \) Copy content Toggle raw display
$53$ \( T^{2} + 36 \) Copy content Toggle raw display
$59$ \( T^{2} + 4 \) Copy content Toggle raw display
$61$ \( (T - 2)^{2} \) Copy content Toggle raw display
$67$ \( (T - 4)^{2} \) Copy content Toggle raw display
$71$ \( T^{2} + 36 \) Copy content Toggle raw display
$73$ \( (T - 4)^{2} \) Copy content Toggle raw display
$79$ \( T^{2} \) Copy content Toggle raw display
$83$ \( (T + 14)^{2} \) Copy content Toggle raw display
$89$ \( T^{2} + 36 \) Copy content Toggle raw display
$97$ \( (T + 12)^{2} \) Copy content Toggle raw display
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