Properties

Label 2783.2.a.c
Level $2783$
Weight $2$
Character orbit 2783.a
Self dual yes
Analytic conductor $22.222$
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] = [2783,2,Mod(1,2783)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2783, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([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("2783.1");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 2783 = 11^{2} \cdot 23 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 2783.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: \(22.2223668825\)
Analytic rank: \(1\)
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: \(\Z[a_1, a_2]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 23)
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.

\(f(q)\) \(=\) \( q + \beta q^{2} + (2 \beta - 1) q^{3} + (\beta - 1) q^{4} - 2 \beta q^{5} + (\beta + 2) q^{6} + (2 \beta - 2) q^{7} + ( - 2 \beta + 1) q^{8} + 2 q^{9} +O(q^{10}) \) Copy content Toggle raw display \( q + \beta q^{2} + (2 \beta - 1) q^{3} + (\beta - 1) q^{4} - 2 \beta q^{5} + (\beta + 2) q^{6} + (2 \beta - 2) q^{7} + ( - 2 \beta + 1) q^{8} + 2 q^{9} + ( - 2 \beta - 2) q^{10} + ( - \beta + 3) q^{12} - 3 q^{13} + 2 q^{14} + ( - 2 \beta - 4) q^{15} - 3 \beta q^{16} + ( - 2 \beta - 2) q^{17} + 2 \beta q^{18} + 2 q^{19} - 2 q^{20} + ( - 2 \beta + 6) q^{21} + q^{23} - 5 q^{24} + (4 \beta - 1) q^{25} - 3 \beta q^{26} + ( - 2 \beta + 1) q^{27} + ( - 2 \beta + 4) q^{28} + 3 q^{29} + ( - 6 \beta - 2) q^{30} + ( - 6 \beta + 3) q^{31} + (\beta - 5) q^{32} + ( - 4 \beta - 2) q^{34} - 4 q^{35} + (2 \beta - 2) q^{36} + 2 \beta q^{37} + 2 \beta q^{38} + ( - 6 \beta + 3) q^{39} + (2 \beta + 4) q^{40} + ( - 4 \beta + 1) q^{41} + (4 \beta - 2) q^{42} - 4 \beta q^{45} + \beta q^{46} + (2 \beta - 1) q^{47} + ( - 3 \beta - 6) q^{48} + ( - 4 \beta + 1) q^{49} + (3 \beta + 4) q^{50} + ( - 6 \beta - 2) q^{51} + ( - 3 \beta + 3) q^{52} + ( - 4 \beta - 2) q^{53} + ( - \beta - 2) q^{54} + (2 \beta - 6) q^{56} + (4 \beta - 2) q^{57} + 3 \beta q^{58} + ( - 4 \beta + 4) q^{59} + ( - 4 \beta + 2) q^{60} + ( - 8 \beta + 2) q^{61} + ( - 3 \beta - 6) q^{62} + (4 \beta - 4) q^{63} + (2 \beta + 1) q^{64} + 6 \beta q^{65} + ( - 2 \beta - 4) q^{67} - 2 \beta q^{68} + (2 \beta - 1) q^{69} - 4 \beta q^{70} + ( - 2 \beta + 11) q^{71} + ( - 4 \beta + 2) q^{72} + ( - 4 \beta - 9) q^{73} + (2 \beta + 2) q^{74} + (2 \beta + 9) q^{75} + (2 \beta - 2) q^{76} + ( - 3 \beta - 6) q^{78} + ( - 8 \beta + 6) q^{79} + (6 \beta + 6) q^{80} - 11 q^{81} + ( - 3 \beta - 4) q^{82} + (2 \beta + 10) q^{83} + (6 \beta - 8) q^{84} + (8 \beta + 4) q^{85} + (6 \beta - 3) q^{87} + (4 \beta - 8) q^{89} + ( - 4 \beta - 4) q^{90} + ( - 6 \beta + 6) q^{91} + (\beta - 1) q^{92} - 15 q^{93} + (\beta + 2) q^{94} - 4 \beta q^{95} + ( - 9 \beta + 7) q^{96} + ( - 6 \beta + 14) q^{97} + ( - 3 \beta - 4) q^{98} +O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2 q + q^{2} - q^{4} - 2 q^{5} + 5 q^{6} - 2 q^{7} + 4 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 2 q + q^{2} - q^{4} - 2 q^{5} + 5 q^{6} - 2 q^{7} + 4 q^{9} - 6 q^{10} + 5 q^{12} - 6 q^{13} + 4 q^{14} - 10 q^{15} - 3 q^{16} - 6 q^{17} + 2 q^{18} + 4 q^{19} - 4 q^{20} + 10 q^{21} + 2 q^{23} - 10 q^{24} + 2 q^{25} - 3 q^{26} + 6 q^{28} + 6 q^{29} - 10 q^{30} - 9 q^{32} - 8 q^{34} - 8 q^{35} - 2 q^{36} + 2 q^{37} + 2 q^{38} + 10 q^{40} - 2 q^{41} - 4 q^{45} + q^{46} - 15 q^{48} - 2 q^{49} + 11 q^{50} - 10 q^{51} + 3 q^{52} - 8 q^{53} - 5 q^{54} - 10 q^{56} + 3 q^{58} + 4 q^{59} - 4 q^{61} - 15 q^{62} - 4 q^{63} + 4 q^{64} + 6 q^{65} - 10 q^{67} - 2 q^{68} - 4 q^{70} + 20 q^{71} - 22 q^{73} + 6 q^{74} + 20 q^{75} - 2 q^{76} - 15 q^{78} + 4 q^{79} + 18 q^{80} - 22 q^{81} - 11 q^{82} + 22 q^{83} - 10 q^{84} + 16 q^{85} - 12 q^{89} - 12 q^{90} + 6 q^{91} - q^{92} - 30 q^{93} + 5 q^{94} - 4 q^{95} + 5 q^{96} + 22 q^{97} - 11 q^{98}+O(q^{100}) \) 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
−0.618034
1.61803
−0.618034 −2.23607 −1.61803 1.23607 1.38197 −3.23607 2.23607 2.00000 −0.763932
1.2 1.61803 2.23607 0.618034 −3.23607 3.61803 1.23607 −2.23607 2.00000 −5.23607
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(11\) \(-1\)
\(23\) \(-1\)

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 2783.2.a.c 2
11.b odd 2 1 23.2.a.a 2
33.d even 2 1 207.2.a.d 2
44.c even 2 1 368.2.a.h 2
55.d odd 2 1 575.2.a.f 2
55.e even 4 2 575.2.b.d 4
77.b even 2 1 1127.2.a.c 2
88.b odd 2 1 1472.2.a.t 2
88.g even 2 1 1472.2.a.s 2
132.d odd 2 1 3312.2.a.ba 2
143.d odd 2 1 3887.2.a.i 2
165.d even 2 1 5175.2.a.be 2
187.b odd 2 1 6647.2.a.b 2
209.d even 2 1 8303.2.a.e 2
220.g even 2 1 9200.2.a.bt 2
253.b even 2 1 529.2.a.a 2
253.k odd 22 10 529.2.c.o 20
253.l even 22 10 529.2.c.n 20
759.h odd 2 1 4761.2.a.w 2
1012.b odd 2 1 8464.2.a.bb 2
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
23.2.a.a 2 11.b odd 2 1
207.2.a.d 2 33.d even 2 1
368.2.a.h 2 44.c even 2 1
529.2.a.a 2 253.b even 2 1
529.2.c.n 20 253.l even 22 10
529.2.c.o 20 253.k odd 22 10
575.2.a.f 2 55.d odd 2 1
575.2.b.d 4 55.e even 4 2
1127.2.a.c 2 77.b even 2 1
1472.2.a.s 2 88.g even 2 1
1472.2.a.t 2 88.b odd 2 1
2783.2.a.c 2 1.a even 1 1 trivial
3312.2.a.ba 2 132.d odd 2 1
3887.2.a.i 2 143.d odd 2 1
4761.2.a.w 2 759.h odd 2 1
5175.2.a.be 2 165.d even 2 1
6647.2.a.b 2 187.b odd 2 1
8303.2.a.e 2 209.d even 2 1
8464.2.a.bb 2 1012.b odd 2 1
9200.2.a.bt 2 220.g even 2 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{2}^{2} - T_{2} - 1 \) acting on \(S_{2}^{\mathrm{new}}(\Gamma_0(2783))\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{2} - T - 1 \) Copy content Toggle raw display
$3$ \( T^{2} - 5 \) Copy content Toggle raw display
$5$ \( T^{2} + 2T - 4 \) Copy content Toggle raw display
$7$ \( T^{2} + 2T - 4 \) Copy content Toggle raw display
$11$ \( T^{2} \) Copy content Toggle raw display
$13$ \( (T + 3)^{2} \) Copy content Toggle raw display
$17$ \( T^{2} + 6T + 4 \) Copy content Toggle raw display
$19$ \( (T - 2)^{2} \) Copy content Toggle raw display
$23$ \( (T - 1)^{2} \) Copy content Toggle raw display
$29$ \( (T - 3)^{2} \) Copy content Toggle raw display
$31$ \( T^{2} - 45 \) Copy content Toggle raw display
$37$ \( T^{2} - 2T - 4 \) Copy content Toggle raw display
$41$ \( T^{2} + 2T - 19 \) Copy content Toggle raw display
$43$ \( T^{2} \) Copy content Toggle raw display
$47$ \( T^{2} - 5 \) Copy content Toggle raw display
$53$ \( T^{2} + 8T - 4 \) Copy content Toggle raw display
$59$ \( T^{2} - 4T - 16 \) Copy content Toggle raw display
$61$ \( T^{2} + 4T - 76 \) Copy content Toggle raw display
$67$ \( T^{2} + 10T + 20 \) Copy content Toggle raw display
$71$ \( T^{2} - 20T + 95 \) Copy content Toggle raw display
$73$ \( T^{2} + 22T + 101 \) Copy content Toggle raw display
$79$ \( T^{2} - 4T - 76 \) Copy content Toggle raw display
$83$ \( T^{2} - 22T + 116 \) Copy content Toggle raw display
$89$ \( T^{2} + 12T + 16 \) Copy content Toggle raw display
$97$ \( T^{2} - 22T + 76 \) Copy content Toggle raw display
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