Properties

Label 1950.2.y.i
Level $1950$
Weight $2$
Character orbit 1950.y
Analytic conductor $15.571$
Analytic rank $0$
Dimension $8$
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] = [1950,2,Mod(49,1950)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1950, base_ring=CyclotomicField(6))
 
chi = DirichletCharacter(H, H._module([0, 3, 5]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("1950.49");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 1950 = 2 \cdot 3 \cdot 5^{2} \cdot 13 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 1950.y (of order \(6\), degree \(2\), 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: \(15.5708283941\)
Analytic rank: \(0\)
Dimension: \(8\)
Relative dimension: \(4\) over \(\Q(\zeta_{6})\)
Coefficient field: \(\Q(\zeta_{24})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{8} - x^{4} + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{7}]\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{6}]$

$q$-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 primitive root of unity \(\zeta_{24}\). We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + (\zeta_{24}^{4} - 1) q^{2} - \zeta_{24}^{2} q^{3} - \zeta_{24}^{4} q^{4} + ( - \zeta_{24}^{6} + \zeta_{24}^{2}) q^{6} + (\zeta_{24}^{7} - \zeta_{24}^{5} + \cdots + \zeta_{24}) q^{7} + \cdots + \zeta_{24}^{4} q^{9} +O(q^{10}) \) Copy content Toggle raw display \( q + (\zeta_{24}^{4} - 1) q^{2} - \zeta_{24}^{2} q^{3} - \zeta_{24}^{4} q^{4} + ( - \zeta_{24}^{6} + \zeta_{24}^{2}) q^{6} + (\zeta_{24}^{7} - \zeta_{24}^{5} + \cdots + \zeta_{24}) q^{7} + \cdots + ( - 2 \zeta_{24}^{6} - \zeta_{24}^{5} + \cdots + 1) q^{99} +O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q - 4 q^{2} - 4 q^{4} - 4 q^{7} + 8 q^{8} + 4 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 8 q - 4 q^{2} - 4 q^{4} - 4 q^{7} + 8 q^{8} + 4 q^{9} - 12 q^{11} + 8 q^{14} - 4 q^{16} - 8 q^{18} - 12 q^{19} + 12 q^{22} - 12 q^{23} - 4 q^{28} - 4 q^{29} - 4 q^{32} + 8 q^{33} + 4 q^{36} - 16 q^{37} + 24 q^{43} + 12 q^{46} + 32 q^{47} + 16 q^{49} - 8 q^{51} - 4 q^{56} - 4 q^{58} + 12 q^{59} - 16 q^{61} - 24 q^{62} + 4 q^{63} + 8 q^{64} - 16 q^{66} + 24 q^{67} - 4 q^{69} + 60 q^{71} + 4 q^{72} - 24 q^{73} - 16 q^{74} + 12 q^{76} + 8 q^{79} - 4 q^{81} - 8 q^{83} - 12 q^{87} - 12 q^{88} - 24 q^{89} + 8 q^{91} + 4 q^{93} - 16 q^{94} + 16 q^{98}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/1950\mathbb{Z}\right)^\times\).

\(n\) \(301\) \(1301\) \(1327\)
\(\chi(n)\) \(\zeta_{24}^{4}\) \(1\) \(-1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
49.1
0.965926 0.258819i
−0.965926 + 0.258819i
0.258819 + 0.965926i
−0.258819 0.965926i
0.965926 + 0.258819i
−0.965926 0.258819i
0.258819 0.965926i
−0.258819 + 0.965926i
−0.500000 0.866025i −0.866025 + 0.500000i −0.500000 + 0.866025i 0 0.866025 + 0.500000i −0.758819 + 1.31431i 1.00000 0.500000 0.866025i 0
49.2 −0.500000 0.866025i −0.866025 + 0.500000i −0.500000 + 0.866025i 0 0.866025 + 0.500000i −0.241181 + 0.417738i 1.00000 0.500000 0.866025i 0
49.3 −0.500000 0.866025i 0.866025 0.500000i −0.500000 + 0.866025i 0 −0.866025 0.500000i −1.46593 + 2.53906i 1.00000 0.500000 0.866025i 0
49.4 −0.500000 0.866025i 0.866025 0.500000i −0.500000 + 0.866025i 0 −0.866025 0.500000i 0.465926 0.807007i 1.00000 0.500000 0.866025i 0
199.1 −0.500000 + 0.866025i −0.866025 0.500000i −0.500000 0.866025i 0 0.866025 0.500000i −0.758819 1.31431i 1.00000 0.500000 + 0.866025i 0
199.2 −0.500000 + 0.866025i −0.866025 0.500000i −0.500000 0.866025i 0 0.866025 0.500000i −0.241181 0.417738i 1.00000 0.500000 + 0.866025i 0
199.3 −0.500000 + 0.866025i 0.866025 + 0.500000i −0.500000 0.866025i 0 −0.866025 + 0.500000i −1.46593 2.53906i 1.00000 0.500000 + 0.866025i 0
199.4 −0.500000 + 0.866025i 0.866025 + 0.500000i −0.500000 0.866025i 0 −0.866025 + 0.500000i 0.465926 + 0.807007i 1.00000 0.500000 + 0.866025i 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 49.4
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
65.l even 6 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 1950.2.y.i 8
5.b even 2 1 1950.2.y.l 8
5.c odd 4 1 1950.2.bc.e 8
5.c odd 4 1 1950.2.bc.f yes 8
13.e even 6 1 1950.2.y.l 8
65.l even 6 1 inner 1950.2.y.i 8
65.r odd 12 1 1950.2.bc.e 8
65.r odd 12 1 1950.2.bc.f yes 8
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
1950.2.y.i 8 1.a even 1 1 trivial
1950.2.y.i 8 65.l even 6 1 inner
1950.2.y.l 8 5.b even 2 1
1950.2.y.l 8 13.e even 6 1
1950.2.bc.e 8 5.c odd 4 1
1950.2.bc.e 8 65.r odd 12 1
1950.2.bc.f yes 8 5.c odd 4 1
1950.2.bc.f yes 8 65.r odd 12 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{7}^{8} + 4T_{7}^{7} + 14T_{7}^{6} + 16T_{7}^{5} + 22T_{7}^{4} + 8T_{7}^{3} + 20T_{7}^{2} + 8T_{7} + 4 \) acting on \(S_{2}^{\mathrm{new}}(1950, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( (T^{2} + T + 1)^{4} \) Copy content Toggle raw display
$3$ \( (T^{4} - T^{2} + 1)^{2} \) Copy content Toggle raw display
$5$ \( T^{8} \) Copy content Toggle raw display
$7$ \( T^{8} + 4 T^{7} + \cdots + 4 \) Copy content Toggle raw display
$11$ \( T^{8} + 12 T^{7} + \cdots + 529 \) Copy content Toggle raw display
$13$ \( T^{8} + 191 T^{4} + 28561 \) Copy content Toggle raw display
$17$ \( T^{8} - 38 T^{6} + \cdots + 2116 \) Copy content Toggle raw display
$19$ \( T^{8} + 12 T^{7} + \cdots + 324 \) Copy content Toggle raw display
$23$ \( T^{8} + 12 T^{7} + \cdots + 58081 \) Copy content Toggle raw display
$29$ \( T^{8} + 4 T^{7} + \cdots + 341056 \) Copy content Toggle raw display
$31$ \( T^{8} + 204 T^{6} + \cdots + 145924 \) Copy content Toggle raw display
$37$ \( T^{8} + 16 T^{7} + \cdots + 16056049 \) Copy content Toggle raw display
$41$ \( T^{8} - 102 T^{6} + \cdots + 21316 \) Copy content Toggle raw display
$43$ \( T^{8} - 24 T^{7} + \cdots + 386884 \) Copy content Toggle raw display
$47$ \( (T^{4} - 16 T^{3} + \cdots - 1724)^{2} \) Copy content Toggle raw display
$53$ \( T^{8} + 76 T^{6} + \cdots + 9604 \) Copy content Toggle raw display
$59$ \( T^{8} - 12 T^{7} + \cdots + 5740816 \) Copy content Toggle raw display
$61$ \( T^{8} + 16 T^{7} + \cdots + 8567329 \) Copy content Toggle raw display
$67$ \( T^{8} - 24 T^{7} + \cdots + 20647936 \) Copy content Toggle raw display
$71$ \( T^{8} - 60 T^{7} + \cdots + 6115729 \) Copy content Toggle raw display
$73$ \( (T^{4} + 12 T^{3} + \cdots - 2231)^{2} \) Copy content Toggle raw display
$79$ \( (T^{4} - 4 T^{3} + \cdots + 622)^{2} \) Copy content Toggle raw display
$83$ \( (T^{4} + 4 T^{3} + \cdots - 263)^{2} \) Copy content Toggle raw display
$89$ \( T^{8} + 24 T^{7} + \cdots + 5080516 \) Copy content Toggle raw display
$97$ \( T^{8} + 214 T^{6} + \cdots + 61606801 \) Copy content Toggle raw display
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