Properties

Label 2550.2.a.bj
Level $2550$
Weight $2$
Character orbit 2550.a
Self dual yes
Analytic conductor $20.362$
Analytic rank $1$
Dimension $2$
CM no
Inner twists $1$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [2550,2,Mod(1,2550)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2550, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([0, 0, 0]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("2550.1");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 2550 = 2 \cdot 3 \cdot 5^{2} \cdot 17 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 2550.a (trivial)

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: yes
Analytic conductor: \(20.3618525154\)
Analytic rank: \(1\)
Dimension: \(2\)
Coefficient field: \(\Q(\sqrt{6}) \)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{2} - 6 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{7}]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 510)
Fricke sign: \(1\)
Sato-Tate group: $\mathrm{SU}(2)$

$q$-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 \(\beta = \sqrt{6}\). We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + q^{2} - q^{3} + q^{4} - q^{6} + \beta q^{7} + q^{8} + q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + q^{2} - q^{3} + q^{4} - q^{6} + \beta q^{7} + q^{8} + q^{9} - 2 \beta q^{11} - q^{12} - 6 q^{13} + \beta q^{14} + q^{16} - q^{17} + q^{18} + (2 \beta + 2) q^{19} - \beta q^{21} - 2 \beta q^{22} + ( - \beta - 4) q^{23} - q^{24} - 6 q^{26} - q^{27} + \beta q^{28} + ( - 3 \beta - 2) q^{29} + ( - \beta - 4) q^{31} + q^{32} + 2 \beta q^{33} - q^{34} + q^{36} + (\beta - 2) q^{37} + (2 \beta + 2) q^{38} + 6 q^{39} + (2 \beta - 6) q^{41} - \beta q^{42} + (2 \beta - 2) q^{43} - 2 \beta q^{44} + ( - \beta - 4) q^{46} - 2 \beta q^{47} - q^{48} - q^{49} + q^{51} - 6 q^{52} + ( - 2 \beta + 6) q^{53} - q^{54} + \beta q^{56} + ( - 2 \beta - 2) q^{57} + ( - 3 \beta - 2) q^{58} + (4 \beta - 4) q^{59} + (3 \beta + 6) q^{61} + ( - \beta - 4) q^{62} + \beta q^{63} + q^{64} + 2 \beta q^{66} - 4 q^{67} - q^{68} + (\beta + 4) q^{69} + \beta q^{71} + q^{72} + ( - 2 \beta - 10) q^{73} + (\beta - 2) q^{74} + (2 \beta + 2) q^{76} - 12 q^{77} + 6 q^{78} + (\beta - 4) q^{79} + q^{81} + (2 \beta - 6) q^{82} + ( - 2 \beta + 2) q^{83} - \beta q^{84} + (2 \beta - 2) q^{86} + (3 \beta + 2) q^{87} - 2 \beta q^{88} + ( - 4 \beta + 8) q^{89} - 6 \beta q^{91} + ( - \beta - 4) q^{92} + (\beta + 4) q^{93} - 2 \beta q^{94} - q^{96} + (4 \beta - 6) q^{97} - q^{98} - 2 \beta q^{99} +O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2 q + 2 q^{2} - 2 q^{3} + 2 q^{4} - 2 q^{6} + 2 q^{8} + 2 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 2 q + 2 q^{2} - 2 q^{3} + 2 q^{4} - 2 q^{6} + 2 q^{8} + 2 q^{9} - 2 q^{12} - 12 q^{13} + 2 q^{16} - 2 q^{17} + 2 q^{18} + 4 q^{19} - 8 q^{23} - 2 q^{24} - 12 q^{26} - 2 q^{27} - 4 q^{29} - 8 q^{31} + 2 q^{32} - 2 q^{34} + 2 q^{36} - 4 q^{37} + 4 q^{38} + 12 q^{39} - 12 q^{41} - 4 q^{43} - 8 q^{46} - 2 q^{48} - 2 q^{49} + 2 q^{51} - 12 q^{52} + 12 q^{53} - 2 q^{54} - 4 q^{57} - 4 q^{58} - 8 q^{59} + 12 q^{61} - 8 q^{62} + 2 q^{64} - 8 q^{67} - 2 q^{68} + 8 q^{69} + 2 q^{72} - 20 q^{73} - 4 q^{74} + 4 q^{76} - 24 q^{77} + 12 q^{78} - 8 q^{79} + 2 q^{81} - 12 q^{82} + 4 q^{83} - 4 q^{86} + 4 q^{87} + 16 q^{89} - 8 q^{92} + 8 q^{93} - 2 q^{96} - 12 q^{97} - 2 q^{98}+O(q^{100}) \) Copy content Toggle raw display

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
1.1
−2.44949
2.44949
1.00000 −1.00000 1.00000 0 −1.00000 −2.44949 1.00000 1.00000 0
1.2 1.00000 −1.00000 1.00000 0 −1.00000 2.44949 1.00000 1.00000 0
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(2\) \(-1\)
\(3\) \(1\)
\(5\) \(-1\)
\(17\) \(1\)

Inner twists

This newform does not admit any (nontrivial) inner twists.

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 2550.2.a.bj 2
3.b odd 2 1 7650.2.a.ct 2
5.b even 2 1 2550.2.a.bi 2
5.c odd 4 2 510.2.d.c 4
15.d odd 2 1 7650.2.a.dg 2
15.e even 4 2 1530.2.d.e 4
20.e even 4 2 4080.2.m.o 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
510.2.d.c 4 5.c odd 4 2
1530.2.d.e 4 15.e even 4 2
2550.2.a.bi 2 5.b even 2 1
2550.2.a.bj 2 1.a even 1 1 trivial
4080.2.m.o 4 20.e even 4 2
7650.2.a.ct 2 3.b odd 2 1
7650.2.a.dg 2 15.d odd 2 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(\Gamma_0(2550))\):

\( T_{7}^{2} - 6 \) Copy content Toggle raw display
\( T_{11}^{2} - 24 \) Copy content Toggle raw display
\( T_{13} + 6 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( (T - 1)^{2} \) Copy content Toggle raw display
$3$ \( (T + 1)^{2} \) Copy content Toggle raw display
$5$ \( T^{2} \) Copy content Toggle raw display
$7$ \( T^{2} - 6 \) Copy content Toggle raw display
$11$ \( T^{2} - 24 \) Copy content Toggle raw display
$13$ \( (T + 6)^{2} \) Copy content Toggle raw display
$17$ \( (T + 1)^{2} \) Copy content Toggle raw display
$19$ \( T^{2} - 4T - 20 \) Copy content Toggle raw display
$23$ \( T^{2} + 8T + 10 \) Copy content Toggle raw display
$29$ \( T^{2} + 4T - 50 \) Copy content Toggle raw display
$31$ \( T^{2} + 8T + 10 \) Copy content Toggle raw display
$37$ \( T^{2} + 4T - 2 \) Copy content Toggle raw display
$41$ \( T^{2} + 12T + 12 \) Copy content Toggle raw display
$43$ \( T^{2} + 4T - 20 \) Copy content Toggle raw display
$47$ \( T^{2} - 24 \) Copy content Toggle raw display
$53$ \( T^{2} - 12T + 12 \) Copy content Toggle raw display
$59$ \( T^{2} + 8T - 80 \) Copy content Toggle raw display
$61$ \( T^{2} - 12T - 18 \) Copy content Toggle raw display
$67$ \( (T + 4)^{2} \) Copy content Toggle raw display
$71$ \( T^{2} - 6 \) Copy content Toggle raw display
$73$ \( T^{2} + 20T + 76 \) Copy content Toggle raw display
$79$ \( T^{2} + 8T + 10 \) Copy content Toggle raw display
$83$ \( T^{2} - 4T - 20 \) Copy content Toggle raw display
$89$ \( T^{2} - 16T - 32 \) Copy content Toggle raw display
$97$ \( T^{2} + 12T - 60 \) Copy content Toggle raw display
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