Properties

Label 120.4.f.c
Level $120$
Weight $4$
Character orbit 120.f
Analytic conductor $7.080$
Analytic rank $0$
Dimension $2$
Inner twists $2$

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Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [120,4,Mod(49,120)] mf = mfinit([N,k,chi],0) lf = mfeigenbasis(mf)
 
Copy content magma://Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code chi := DirichletCharacter("120.49"); S:= CuspForms(chi, 4); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(120, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0, 0, 0, 1])) N = Newforms(chi, 4, names="a")
 
Level: \( N \) \(=\) \( 120 = 2^{3} \cdot 3 \cdot 5 \)
Weight: \( k \) \(=\) \( 4 \)
Character orbit: \([\chi]\) \(=\) 120.f (of order \(2\), degree \(1\), minimal)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [2,0,0,0,10] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(5)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: no
Analytic conductor: \(7.08022920069\)
Analytic rank: \(0\)
Dimension: \(2\)
Coefficient field: \(\Q(\sqrt{-1}) \)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{2} + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{5}]\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{2}]$

$q$-expansion

Copy content comment:q-expansion
 
Copy content sage:f.q_expansion() # note that sage often uses an isomorphic number field
 
Copy content 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.

\(f(q)\) \(=\) \( q + 3 i q^{3} + (10 i + 5) q^{5} + 4 i q^{7} - 9 q^{9} - 28 q^{11} + 16 i q^{13} + (15 i - 30) q^{15} + 108 i q^{17} - 32 q^{19} - 12 q^{21} + 28 i q^{23} + (100 i - 75) q^{25} - 27 i q^{27} + 238 q^{29} + \cdots + 252 q^{99} +O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2 q + 10 q^{5} - 18 q^{9} - 56 q^{11} - 60 q^{15} - 64 q^{19} - 24 q^{21} - 150 q^{25} + 476 q^{29} - 360 q^{31} - 80 q^{35} - 96 q^{39} + 844 q^{41} - 90 q^{45} + 654 q^{49} - 648 q^{51} - 280 q^{55} + 1608 q^{59}+ \cdots + 504 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/120\mathbb{Z}\right)^\times\).

\(n\) \(31\) \(41\) \(61\) \(97\)
\(\chi(n)\) \(1\) \(1\) \(1\) \(-1\)

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.

Copy content comment:embeddings in the coefficient field
 
Copy content gp:mfembed(f)
 
Label   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
49.1
1.00000i
1.00000i
0 3.00000i 0 5.00000 10.0000i 0 4.00000i 0 −9.00000 0
49.2 0 3.00000i 0 5.00000 + 10.0000i 0 4.00000i 0 −9.00000 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
5.b even 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 120.4.f.c 2
3.b odd 2 1 360.4.f.a 2
4.b odd 2 1 240.4.f.e 2
5.b even 2 1 inner 120.4.f.c 2
5.c odd 4 1 600.4.a.f 1
5.c odd 4 1 600.4.a.k 1
8.b even 2 1 960.4.f.b 2
8.d odd 2 1 960.4.f.a 2
12.b even 2 1 720.4.f.b 2
15.d odd 2 1 360.4.f.a 2
15.e even 4 1 1800.4.a.o 1
15.e even 4 1 1800.4.a.u 1
20.d odd 2 1 240.4.f.e 2
20.e even 4 1 1200.4.a.l 1
20.e even 4 1 1200.4.a.z 1
40.e odd 2 1 960.4.f.a 2
40.f even 2 1 960.4.f.b 2
60.h even 2 1 720.4.f.b 2
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
120.4.f.c 2 1.a even 1 1 trivial
120.4.f.c 2 5.b even 2 1 inner
240.4.f.e 2 4.b odd 2 1
240.4.f.e 2 20.d odd 2 1
360.4.f.a 2 3.b odd 2 1
360.4.f.a 2 15.d odd 2 1
600.4.a.f 1 5.c odd 4 1
600.4.a.k 1 5.c odd 4 1
720.4.f.b 2 12.b even 2 1
720.4.f.b 2 60.h even 2 1
960.4.f.a 2 8.d odd 2 1
960.4.f.a 2 40.e odd 2 1
960.4.f.b 2 8.b even 2 1
960.4.f.b 2 40.f even 2 1
1200.4.a.l 1 20.e even 4 1
1200.4.a.z 1 20.e even 4 1
1800.4.a.o 1 15.e even 4 1
1800.4.a.u 1 15.e even 4 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{4}^{\mathrm{new}}(120, [\chi])\):

\( T_{7}^{2} + 16 \) Copy content Toggle raw display
\( T_{11} + 28 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{2} \) Copy content Toggle raw display
$3$ \( T^{2} + 9 \) Copy content Toggle raw display
$5$ \( T^{2} - 10T + 125 \) Copy content Toggle raw display
$7$ \( T^{2} + 16 \) Copy content Toggle raw display
$11$ \( (T + 28)^{2} \) Copy content Toggle raw display
$13$ \( T^{2} + 256 \) Copy content Toggle raw display
$17$ \( T^{2} + 11664 \) Copy content Toggle raw display
$19$ \( (T + 32)^{2} \) Copy content Toggle raw display
$23$ \( T^{2} + 784 \) Copy content Toggle raw display
$29$ \( (T - 238)^{2} \) Copy content Toggle raw display
$31$ \( (T + 180)^{2} \) Copy content Toggle raw display
$37$ \( T^{2} + 1600 \) Copy content Toggle raw display
$41$ \( (T - 422)^{2} \) Copy content Toggle raw display
$43$ \( T^{2} + 76176 \) Copy content Toggle raw display
$47$ \( T^{2} + 3600 \) Copy content Toggle raw display
$53$ \( T^{2} + 48400 \) Copy content Toggle raw display
$59$ \( (T - 804)^{2} \) Copy content Toggle raw display
$61$ \( (T + 358)^{2} \) Copy content Toggle raw display
$67$ \( T^{2} + 781456 \) Copy content Toggle raw display
$71$ \( (T + 64)^{2} \) Copy content Toggle raw display
$73$ \( T^{2} + 23104 \) Copy content Toggle raw display
$79$ \( (T - 932)^{2} \) Copy content Toggle raw display
$83$ \( T^{2} + 1669264 \) Copy content Toggle raw display
$89$ \( (T - 1146)^{2} \) Copy content Toggle raw display
$97$ \( T^{2} + 678976 \) Copy content Toggle raw display
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