Properties

Label 2541.2.a.w
Level $2541$
Weight $2$
Character orbit 2541.a
Self dual yes
Analytic conductor $20.290$
Analytic rank $0$
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] = [2541,2,Mod(1,2541)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2541, 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("2541.1");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 2541 = 3 \cdot 7 \cdot 11^{2} \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 2541.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: \(20.2899871536\)
Analytic rank: \(0\)
Dimension: \(2\)
Coefficient field: \(\Q(\sqrt{5}) \)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{2} - x - 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{5}]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 231)
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 \(\beta = \frac{1}{2}(1 + \sqrt{5})\). We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + ( - 2 \beta + 1) q^{2} - q^{3} + 3 q^{4} + \beta q^{5} + (2 \beta - 1) q^{6} + q^{7} + ( - 2 \beta + 1) q^{8} + q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + ( - 2 \beta + 1) q^{2} - q^{3} + 3 q^{4} + \beta q^{5} + (2 \beta - 1) q^{6} + q^{7} + ( - 2 \beta + 1) q^{8} + q^{9} + ( - \beta - 2) q^{10} - 3 q^{12} + ( - 2 \beta + 2) q^{13} + ( - 2 \beta + 1) q^{14} - \beta q^{15} - q^{16} + ( - 3 \beta + 3) q^{17} + ( - 2 \beta + 1) q^{18} + ( - 3 \beta + 1) q^{19} + 3 \beta q^{20} - q^{21} + (\beta + 5) q^{23} + (2 \beta - 1) q^{24} + (\beta - 4) q^{25} + ( - 2 \beta + 6) q^{26} - q^{27} + 3 q^{28} - 6 q^{29} + (\beta + 2) q^{30} + 5 \beta q^{31} + (6 \beta - 3) q^{32} + ( - 3 \beta + 9) q^{34} + \beta q^{35} + 3 q^{36} + ( - \beta + 4) q^{37} + (\beta + 7) q^{38} + (2 \beta - 2) q^{39} + ( - \beta - 2) q^{40} + (\beta + 8) q^{41} + (2 \beta - 1) q^{42} + ( - 6 \beta + 6) q^{43} + \beta q^{45} + ( - 11 \beta + 3) q^{46} + ( - 4 \beta + 2) q^{47} + q^{48} + q^{49} + (7 \beta - 6) q^{50} + (3 \beta - 3) q^{51} + ( - 6 \beta + 6) q^{52} + (2 \beta + 8) q^{53} + (2 \beta - 1) q^{54} + ( - 2 \beta + 1) q^{56} + (3 \beta - 1) q^{57} + (12 \beta - 6) q^{58} + ( - 2 \beta + 2) q^{59} - 3 \beta q^{60} + ( - 5 \beta - 10) q^{62} + q^{63} - 13 q^{64} - 2 q^{65} + ( - 9 \beta + 9) q^{68} + ( - \beta - 5) q^{69} + ( - \beta - 2) q^{70} + 8 \beta q^{71} + ( - 2 \beta + 1) q^{72} + ( - 6 \beta + 10) q^{73} + ( - 7 \beta + 6) q^{74} + ( - \beta + 4) q^{75} + ( - 9 \beta + 3) q^{76} + (2 \beta - 6) q^{78} - 10 q^{79} - \beta q^{80} + q^{81} + ( - 17 \beta + 6) q^{82} + ( - 4 \beta + 14) q^{83} - 3 q^{84} - 3 q^{85} + ( - 6 \beta + 18) q^{86} + 6 q^{87} + ( - \beta + 5) q^{89} + ( - \beta - 2) q^{90} + ( - 2 \beta + 2) q^{91} + (3 \beta + 15) q^{92} - 5 \beta q^{93} + 10 q^{94} + ( - 2 \beta - 3) q^{95} + ( - 6 \beta + 3) q^{96} - 6 q^{97} + ( - 2 \beta + 1) q^{98} +O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2 q - 2 q^{3} + 6 q^{4} + q^{5} + 2 q^{7} + 2 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 2 q - 2 q^{3} + 6 q^{4} + q^{5} + 2 q^{7} + 2 q^{9} - 5 q^{10} - 6 q^{12} + 2 q^{13} - q^{15} - 2 q^{16} + 3 q^{17} - q^{19} + 3 q^{20} - 2 q^{21} + 11 q^{23} - 7 q^{25} + 10 q^{26} - 2 q^{27} + 6 q^{28} - 12 q^{29} + 5 q^{30} + 5 q^{31} + 15 q^{34} + q^{35} + 6 q^{36} + 7 q^{37} + 15 q^{38} - 2 q^{39} - 5 q^{40} + 17 q^{41} + 6 q^{43} + q^{45} - 5 q^{46} + 2 q^{48} + 2 q^{49} - 5 q^{50} - 3 q^{51} + 6 q^{52} + 18 q^{53} + q^{57} + 2 q^{59} - 3 q^{60} - 25 q^{62} + 2 q^{63} - 26 q^{64} - 4 q^{65} + 9 q^{68} - 11 q^{69} - 5 q^{70} + 8 q^{71} + 14 q^{73} + 5 q^{74} + 7 q^{75} - 3 q^{76} - 10 q^{78} - 20 q^{79} - q^{80} + 2 q^{81} - 5 q^{82} + 24 q^{83} - 6 q^{84} - 6 q^{85} + 30 q^{86} + 12 q^{87} + 9 q^{89} - 5 q^{90} + 2 q^{91} + 33 q^{92} - 5 q^{93} + 20 q^{94} - 8 q^{95} - 12 q^{97}+O(q^{100}) \) 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
1.61803
−0.618034
−2.23607 −1.00000 3.00000 1.61803 2.23607 1.00000 −2.23607 1.00000 −3.61803
1.2 2.23607 −1.00000 3.00000 −0.618034 −2.23607 1.00000 2.23607 1.00000 −1.38197
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(3\) \(1\)
\(7\) \(-1\)
\(11\) \(1\)

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 2541.2.a.w 2
3.b odd 2 1 7623.2.a.bk 2
11.b odd 2 1 2541.2.a.v 2
11.c even 5 2 231.2.j.e 4
33.d even 2 1 7623.2.a.bj 2
33.h odd 10 2 693.2.m.a 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
231.2.j.e 4 11.c even 5 2
693.2.m.a 4 33.h odd 10 2
2541.2.a.v 2 11.b odd 2 1
2541.2.a.w 2 1.a even 1 1 trivial
7623.2.a.bj 2 33.d even 2 1
7623.2.a.bk 2 3.b odd 2 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(\Gamma_0(2541))\):

\( T_{2}^{2} - 5 \) Copy content Toggle raw display
\( T_{5}^{2} - T_{5} - 1 \) Copy content Toggle raw display
\( T_{13}^{2} - 2T_{13} - 4 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{2} - 5 \) Copy content Toggle raw display
$3$ \( (T + 1)^{2} \) Copy content Toggle raw display
$5$ \( T^{2} - T - 1 \) Copy content Toggle raw display
$7$ \( (T - 1)^{2} \) Copy content Toggle raw display
$11$ \( T^{2} \) Copy content Toggle raw display
$13$ \( T^{2} - 2T - 4 \) Copy content Toggle raw display
$17$ \( T^{2} - 3T - 9 \) Copy content Toggle raw display
$19$ \( T^{2} + T - 11 \) Copy content Toggle raw display
$23$ \( T^{2} - 11T + 29 \) Copy content Toggle raw display
$29$ \( (T + 6)^{2} \) Copy content Toggle raw display
$31$ \( T^{2} - 5T - 25 \) Copy content Toggle raw display
$37$ \( T^{2} - 7T + 11 \) Copy content Toggle raw display
$41$ \( T^{2} - 17T + 71 \) Copy content Toggle raw display
$43$ \( T^{2} - 6T - 36 \) Copy content Toggle raw display
$47$ \( T^{2} - 20 \) Copy content Toggle raw display
$53$ \( T^{2} - 18T + 76 \) Copy content Toggle raw display
$59$ \( T^{2} - 2T - 4 \) Copy content Toggle raw display
$61$ \( T^{2} \) Copy content Toggle raw display
$67$ \( T^{2} \) Copy content Toggle raw display
$71$ \( T^{2} - 8T - 64 \) Copy content Toggle raw display
$73$ \( T^{2} - 14T + 4 \) Copy content Toggle raw display
$79$ \( (T + 10)^{2} \) Copy content Toggle raw display
$83$ \( T^{2} - 24T + 124 \) Copy content Toggle raw display
$89$ \( T^{2} - 9T + 19 \) Copy content Toggle raw display
$97$ \( (T + 6)^{2} \) Copy content Toggle raw display
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