Properties

Label 2541.2.a.bc
Level $2541$
Weight $2$
Character orbit 2541.a
Self dual yes
Analytic conductor $20.290$
Analytic rank $0$
Dimension $2$
CM no
Inner twists $1$

Related objects

Downloads

Learn more

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: \(\Q(\sqrt{17}) \)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{2} - x - 4 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2]\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
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 \(\beta = \frac{1}{2}(1 + \sqrt{17})\). We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + \beta q^{2} + q^{3} + (\beta + 2) q^{4} + q^{5} + \beta q^{6} + q^{7} + (\beta + 4) q^{8} + q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + \beta q^{2} + q^{3} + (\beta + 2) q^{4} + q^{5} + \beta q^{6} + q^{7} + (\beta + 4) q^{8} + q^{9} + \beta q^{10} + (\beta + 2) q^{12} + ( - \beta + 4) q^{13} + \beta q^{14} + q^{15} + 3 \beta q^{16} + ( - 2 \beta + 1) q^{17} + \beta q^{18} + 6 q^{19} + (\beta + 2) q^{20} + q^{21} - 4 q^{23} + (\beta + 4) q^{24} - 4 q^{25} + (3 \beta - 4) q^{26} + q^{27} + (\beta + 2) q^{28} + ( - 3 \beta + 2) q^{29} + \beta q^{30} + ( - 4 \beta + 2) q^{31} + (\beta + 4) q^{32} + ( - \beta - 8) q^{34} + q^{35} + (\beta + 2) q^{36} + (3 \beta + 2) q^{37} + 6 \beta q^{38} + ( - \beta + 4) q^{39} + (\beta + 4) q^{40} + (\beta - 6) q^{41} + \beta q^{42} + (3 \beta - 1) q^{43} + q^{45} - 4 \beta q^{46} + (\beta + 5) q^{47} + 3 \beta q^{48} + q^{49} - 4 \beta q^{50} + ( - 2 \beta + 1) q^{51} + (\beta + 4) q^{52} - 5 \beta q^{53} + \beta q^{54} + (\beta + 4) q^{56} + 6 q^{57} + ( - \beta - 12) q^{58} + (\beta - 11) q^{59} + (\beta + 2) q^{60} + (6 \beta - 4) q^{61} + ( - 2 \beta - 16) q^{62} + q^{63} + ( - \beta + 4) q^{64} + ( - \beta + 4) q^{65} + ( - 5 \beta + 1) q^{67} + ( - 5 \beta - 6) q^{68} - 4 q^{69} + \beta q^{70} - 2 \beta q^{71} + (\beta + 4) q^{72} + ( - 2 \beta + 4) q^{73} + (5 \beta + 12) q^{74} - 4 q^{75} + (6 \beta + 12) q^{76} + (3 \beta - 4) q^{78} - 2 \beta q^{79} + 3 \beta q^{80} + q^{81} + ( - 5 \beta + 4) q^{82} + (5 \beta - 1) q^{83} + (\beta + 2) q^{84} + ( - 2 \beta + 1) q^{85} + (2 \beta + 12) q^{86} + ( - 3 \beta + 2) q^{87} + (4 \beta - 5) q^{89} + \beta q^{90} + ( - \beta + 4) q^{91} + ( - 4 \beta - 8) q^{92} + ( - 4 \beta + 2) q^{93} + (6 \beta + 4) q^{94} + 6 q^{95} + (\beta + 4) q^{96} + (3 \beta + 6) q^{97} + \beta q^{98} +O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2 q + q^{2} + 2 q^{3} + 5 q^{4} + 2 q^{5} + q^{6} + 2 q^{7} + 9 q^{8} + 2 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 2 q + q^{2} + 2 q^{3} + 5 q^{4} + 2 q^{5} + q^{6} + 2 q^{7} + 9 q^{8} + 2 q^{9} + q^{10} + 5 q^{12} + 7 q^{13} + q^{14} + 2 q^{15} + 3 q^{16} + q^{18} + 12 q^{19} + 5 q^{20} + 2 q^{21} - 8 q^{23} + 9 q^{24} - 8 q^{25} - 5 q^{26} + 2 q^{27} + 5 q^{28} + q^{29} + q^{30} + 9 q^{32} - 17 q^{34} + 2 q^{35} + 5 q^{36} + 7 q^{37} + 6 q^{38} + 7 q^{39} + 9 q^{40} - 11 q^{41} + q^{42} + q^{43} + 2 q^{45} - 4 q^{46} + 11 q^{47} + 3 q^{48} + 2 q^{49} - 4 q^{50} + 9 q^{52} - 5 q^{53} + q^{54} + 9 q^{56} + 12 q^{57} - 25 q^{58} - 21 q^{59} + 5 q^{60} - 2 q^{61} - 34 q^{62} + 2 q^{63} + 7 q^{64} + 7 q^{65} - 3 q^{67} - 17 q^{68} - 8 q^{69} + q^{70} - 2 q^{71} + 9 q^{72} + 6 q^{73} + 29 q^{74} - 8 q^{75} + 30 q^{76} - 5 q^{78} - 2 q^{79} + 3 q^{80} + 2 q^{81} + 3 q^{82} + 3 q^{83} + 5 q^{84} + 26 q^{86} + q^{87} - 6 q^{89} + q^{90} + 7 q^{91} - 20 q^{92} + 14 q^{94} + 12 q^{95} + 9 q^{96} + 15 q^{97} + q^{98}+O(q^{100}) \) 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
−1.56155
2.56155
−1.56155 1.00000 0.438447 1.00000 −1.56155 1.00000 2.43845 1.00000 −1.56155
1.2 2.56155 1.00000 4.56155 1.00000 2.56155 1.00000 6.56155 1.00000 2.56155
\(n\): 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.bc yes 2
3.b odd 2 1 7623.2.a.be 2
11.b odd 2 1 2541.2.a.u 2
33.d even 2 1 7623.2.a.bt 2
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
2541.2.a.u 2 11.b odd 2 1
2541.2.a.bc yes 2 1.a even 1 1 trivial
7623.2.a.be 2 3.b odd 2 1
7623.2.a.bt 2 33.d even 2 1

Hecke kernels

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

\( T_{2}^{2} - T_{2} - 4 \) Copy content Toggle raw display
\( T_{5} - 1 \) Copy content Toggle raw display
\( T_{13}^{2} - 7T_{13} + 8 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{2} - T - 4 \) Copy content Toggle raw display
$3$ \( (T - 1)^{2} \) Copy content Toggle raw display
$5$ \( (T - 1)^{2} \) Copy content Toggle raw display
$7$ \( (T - 1)^{2} \) Copy content Toggle raw display
$11$ \( T^{2} \) Copy content Toggle raw display
$13$ \( T^{2} - 7T + 8 \) Copy content Toggle raw display
$17$ \( T^{2} - 17 \) Copy content Toggle raw display
$19$ \( (T - 6)^{2} \) Copy content Toggle raw display
$23$ \( (T + 4)^{2} \) Copy content Toggle raw display
$29$ \( T^{2} - T - 38 \) Copy content Toggle raw display
$31$ \( T^{2} - 68 \) Copy content Toggle raw display
$37$ \( T^{2} - 7T - 26 \) Copy content Toggle raw display
$41$ \( T^{2} + 11T + 26 \) Copy content Toggle raw display
$43$ \( T^{2} - T - 38 \) Copy content Toggle raw display
$47$ \( T^{2} - 11T + 26 \) Copy content Toggle raw display
$53$ \( T^{2} + 5T - 100 \) Copy content Toggle raw display
$59$ \( T^{2} + 21T + 106 \) Copy content Toggle raw display
$61$ \( T^{2} + 2T - 152 \) Copy content Toggle raw display
$67$ \( T^{2} + 3T - 104 \) Copy content Toggle raw display
$71$ \( T^{2} + 2T - 16 \) Copy content Toggle raw display
$73$ \( T^{2} - 6T - 8 \) Copy content Toggle raw display
$79$ \( T^{2} + 2T - 16 \) Copy content Toggle raw display
$83$ \( T^{2} - 3T - 104 \) Copy content Toggle raw display
$89$ \( T^{2} + 6T - 59 \) Copy content Toggle raw display
$97$ \( T^{2} - 15T + 18 \) Copy content Toggle raw display
show more
show less