Properties

Label 1950.2.bc.d
Level $1950$
Weight $2$
Character orbit 1950.bc
Analytic conductor $15.571$
Analytic rank $0$
Dimension $4$
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(751,1950)]
 
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, 0, 5]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("1950.751");
 
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.bc (of order \(6\), 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: \(15.5708283941\)
Analytic rank: \(0\)
Dimension: \(4\)
Relative dimension: \(2\) over \(\Q(\zeta_{6})\)
Coefficient field: \(\Q(\zeta_{12})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{4} - x^{2} + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 78)
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 \(\zeta_{12}\). We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + (\zeta_{12}^{3} - \zeta_{12}) q^{2} + \zeta_{12}^{2} q^{3} + ( - \zeta_{12}^{2} + 1) q^{4} - \zeta_{12} q^{6} + ( - \zeta_{12}^{2} + \zeta_{12} - 1) q^{7} + \zeta_{12}^{3} q^{8} + (\zeta_{12}^{2} - 1) q^{9} +O(q^{10}) \) Copy content Toggle raw display \( q + (\zeta_{12}^{3} - \zeta_{12}) q^{2} + \zeta_{12}^{2} q^{3} + ( - \zeta_{12}^{2} + 1) q^{4} - \zeta_{12} q^{6} + ( - \zeta_{12}^{2} + \zeta_{12} - 1) q^{7} + \zeta_{12}^{3} q^{8} + (\zeta_{12}^{2} - 1) q^{9} + (3 \zeta_{12}^{3} + \zeta_{12}^{2} + \cdots - 2) q^{11} + \cdots + ( - 3 \zeta_{12}^{3} - 2 \zeta_{12}^{2} + 1) q^{99} +O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 4 q + 2 q^{3} + 2 q^{4} - 6 q^{7} - 2 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 4 q + 2 q^{3} + 2 q^{4} - 6 q^{7} - 2 q^{9} - 6 q^{11} + 4 q^{12} - 4 q^{14} - 2 q^{16} + 8 q^{17} + 6 q^{19} + 6 q^{22} + 2 q^{23} + 14 q^{26} - 4 q^{27} - 6 q^{28} + 2 q^{29} - 6 q^{33} + 2 q^{36} + 12 q^{37} + 12 q^{38} + 36 q^{41} - 2 q^{42} + 2 q^{43} - 18 q^{46} + 2 q^{48} - 6 q^{49} + 16 q^{51} + 12 q^{53} - 2 q^{56} + 12 q^{58} + 8 q^{61} + 4 q^{62} + 6 q^{63} - 4 q^{64} + 12 q^{66} + 42 q^{67} - 8 q^{68} - 2 q^{69} + 6 q^{71} - 14 q^{74} + 6 q^{76} + 4 q^{78} - 24 q^{79} - 2 q^{81} - 2 q^{82} - 6 q^{84} - 2 q^{87} - 6 q^{88} - 12 q^{89} - 4 q^{91} + 4 q^{92} + 12 q^{93} + 6 q^{94} + 12 q^{98}+O(q^{100}) \) Copy content Toggle raw display

Character values

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

\(n\) \(301\) \(1301\) \(1327\)
\(\chi(n)\) \(1 - \zeta_{12}^{2}\) \(1\) \(1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
751.1
0.866025 + 0.500000i
−0.866025 0.500000i
0.866025 0.500000i
−0.866025 + 0.500000i
−0.866025 + 0.500000i 0.500000 + 0.866025i 0.500000 0.866025i 0 −0.866025 0.500000i −0.633975 0.366025i 1.00000i −0.500000 + 0.866025i 0
751.2 0.866025 0.500000i 0.500000 + 0.866025i 0.500000 0.866025i 0 0.866025 + 0.500000i −2.36603 1.36603i 1.00000i −0.500000 + 0.866025i 0
901.1 −0.866025 0.500000i 0.500000 0.866025i 0.500000 + 0.866025i 0 −0.866025 + 0.500000i −0.633975 + 0.366025i 1.00000i −0.500000 0.866025i 0
901.2 0.866025 + 0.500000i 0.500000 0.866025i 0.500000 + 0.866025i 0 0.866025 0.500000i −2.36603 + 1.36603i 1.00000i −0.500000 0.866025i 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
13.e 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.bc.d 4
5.b even 2 1 78.2.i.a 4
5.c odd 4 1 1950.2.y.b 4
5.c odd 4 1 1950.2.y.g 4
13.e even 6 1 inner 1950.2.bc.d 4
15.d odd 2 1 234.2.l.c 4
20.d odd 2 1 624.2.bv.e 4
60.h even 2 1 1872.2.by.h 4
65.d even 2 1 1014.2.i.a 4
65.g odd 4 1 1014.2.e.g 4
65.g odd 4 1 1014.2.e.i 4
65.l even 6 1 78.2.i.a 4
65.l even 6 1 1014.2.b.e 4
65.n even 6 1 1014.2.b.e 4
65.n even 6 1 1014.2.i.a 4
65.r odd 12 1 1950.2.y.b 4
65.r odd 12 1 1950.2.y.g 4
65.s odd 12 1 1014.2.a.i 2
65.s odd 12 1 1014.2.a.k 2
65.s odd 12 1 1014.2.e.g 4
65.s odd 12 1 1014.2.e.i 4
195.x odd 6 1 3042.2.b.i 4
195.y odd 6 1 234.2.l.c 4
195.y odd 6 1 3042.2.b.i 4
195.bh even 12 1 3042.2.a.p 2
195.bh even 12 1 3042.2.a.y 2
260.w odd 6 1 624.2.bv.e 4
260.bc even 12 1 8112.2.a.bj 2
260.bc even 12 1 8112.2.a.bp 2
780.cb even 6 1 1872.2.by.h 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
78.2.i.a 4 5.b even 2 1
78.2.i.a 4 65.l even 6 1
234.2.l.c 4 15.d odd 2 1
234.2.l.c 4 195.y odd 6 1
624.2.bv.e 4 20.d odd 2 1
624.2.bv.e 4 260.w odd 6 1
1014.2.a.i 2 65.s odd 12 1
1014.2.a.k 2 65.s odd 12 1
1014.2.b.e 4 65.l even 6 1
1014.2.b.e 4 65.n even 6 1
1014.2.e.g 4 65.g odd 4 1
1014.2.e.g 4 65.s odd 12 1
1014.2.e.i 4 65.g odd 4 1
1014.2.e.i 4 65.s odd 12 1
1014.2.i.a 4 65.d even 2 1
1014.2.i.a 4 65.n even 6 1
1872.2.by.h 4 60.h even 2 1
1872.2.by.h 4 780.cb even 6 1
1950.2.y.b 4 5.c odd 4 1
1950.2.y.b 4 65.r odd 12 1
1950.2.y.g 4 5.c odd 4 1
1950.2.y.g 4 65.r odd 12 1
1950.2.bc.d 4 1.a even 1 1 trivial
1950.2.bc.d 4 13.e even 6 1 inner
3042.2.a.p 2 195.bh even 12 1
3042.2.a.y 2 195.bh even 12 1
3042.2.b.i 4 195.x odd 6 1
3042.2.b.i 4 195.y odd 6 1
8112.2.a.bj 2 260.bc even 12 1
8112.2.a.bp 2 260.bc even 12 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{7}^{4} + 6T_{7}^{3} + 14T_{7}^{2} + 12T_{7} + 4 \) acting on \(S_{2}^{\mathrm{new}}(1950, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{4} - T^{2} + 1 \) Copy content Toggle raw display
$3$ \( (T^{2} - T + 1)^{2} \) Copy content Toggle raw display
$5$ \( T^{4} \) Copy content Toggle raw display
$7$ \( T^{4} + 6 T^{3} + \cdots + 4 \) Copy content Toggle raw display
$11$ \( T^{4} + 6 T^{3} + \cdots + 36 \) Copy content Toggle raw display
$13$ \( T^{4} - T^{2} + 169 \) Copy content Toggle raw display
$17$ \( T^{4} - 8 T^{3} + \cdots + 169 \) Copy content Toggle raw display
$19$ \( T^{4} - 6 T^{3} + \cdots + 36 \) Copy content Toggle raw display
$23$ \( T^{4} - 2 T^{3} + \cdots + 676 \) Copy content Toggle raw display
$29$ \( T^{4} - 2 T^{3} + \cdots + 121 \) Copy content Toggle raw display
$31$ \( T^{4} + 32T^{2} + 64 \) Copy content Toggle raw display
$37$ \( T^{4} - 12 T^{3} + \cdots + 1369 \) Copy content Toggle raw display
$41$ \( T^{4} - 36 T^{3} + \cdots + 11449 \) Copy content Toggle raw display
$43$ \( T^{4} - 2 T^{3} + \cdots + 5476 \) Copy content Toggle raw display
$47$ \( T^{4} + 72T^{2} + 324 \) Copy content Toggle raw display
$53$ \( (T^{2} - 6 T - 3)^{2} \) Copy content Toggle raw display
$59$ \( T^{4} - 64T^{2} + 4096 \) Copy content Toggle raw display
$61$ \( T^{4} - 8 T^{3} + \cdots + 121 \) Copy content Toggle raw display
$67$ \( T^{4} - 42 T^{3} + \cdots + 21316 \) Copy content Toggle raw display
$71$ \( T^{4} - 6 T^{3} + \cdots + 36 \) Copy content Toggle raw display
$73$ \( T^{4} + 134T^{2} + 3721 \) Copy content Toggle raw display
$79$ \( (T^{2} + 12 T + 24)^{2} \) Copy content Toggle raw display
$83$ \( T^{4} + 104T^{2} + 4 \) Copy content Toggle raw display
$89$ \( T^{4} + 12 T^{3} + \cdots + 576 \) Copy content Toggle raw display
$97$ \( T^{4} - 36T^{2} + 1296 \) Copy content Toggle raw display
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