Properties

Label 2023.2.a.i
Level $2023$
Weight $2$
Character orbit 2023.a
Self dual yes
Analytic conductor $16.154$
Analytic rank $0$
Dimension $5$
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] = [2023,2,Mod(1,2023)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2023, 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("2023.1");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 2023 = 7 \cdot 17^{2} \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 2023.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: \(16.1537363289\)
Analytic rank: \(0\)
Dimension: \(5\)
Coefficient field: 5.5.240133.1
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{5} - 2x^{4} - 4x^{3} + 6x^{2} + 2x - 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 119)
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 a basis \(1,\beta_1,\beta_2,\beta_3,\beta_4\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + \beta_1 q^{2} + ( - \beta_{4} + \beta_1) q^{3} + (\beta_{2} + \beta_1) q^{4} + (\beta_{3} + 1) q^{5} + (\beta_{2} + \beta_1 + 1) q^{6} + q^{7} + (\beta_{3} + \beta_{2} + \beta_1 + 1) q^{8} + (2 \beta_{4} + \beta_{3}) q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + \beta_1 q^{2} + ( - \beta_{4} + \beta_1) q^{3} + (\beta_{2} + \beta_1) q^{4} + (\beta_{3} + 1) q^{5} + (\beta_{2} + \beta_1 + 1) q^{6} + q^{7} + (\beta_{3} + \beta_{2} + \beta_1 + 1) q^{8} + (2 \beta_{4} + \beta_{3}) q^{9} + (\beta_{4} + \beta_{3} + \beta_{2} + \cdots - 1) q^{10}+ \cdots + (8 \beta_{4} + 2 \beta_{3} - 6 \beta_1 + 4) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 5 q + 2 q^{2} + 2 q^{4} + 4 q^{5} + 7 q^{6} + 5 q^{7} + 6 q^{8} + 3 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 5 q + 2 q^{2} + 2 q^{4} + 4 q^{5} + 7 q^{6} + 5 q^{7} + 6 q^{8} + 3 q^{9} - 2 q^{10} + 12 q^{12} - 4 q^{13} + 2 q^{14} + 4 q^{15} + 4 q^{16} + 6 q^{18} - 2 q^{19} + q^{20} + 4 q^{22} + 14 q^{23} + 16 q^{24} + q^{25} - 6 q^{26} - 18 q^{27} + 2 q^{28} + 4 q^{29} + 5 q^{30} + 10 q^{31} + 9 q^{32} - 10 q^{33} + 4 q^{35} - 5 q^{36} + 2 q^{37} - 2 q^{38} + 12 q^{39} + 27 q^{40} + 18 q^{41} + 7 q^{42} - 8 q^{43} - 36 q^{44} + 10 q^{45} + 28 q^{46} + 11 q^{48} + 5 q^{49} + 3 q^{50} - 32 q^{52} - 4 q^{53} - 23 q^{54} - 6 q^{55} + 6 q^{56} + 14 q^{57} - 4 q^{58} - 28 q^{59} + 13 q^{60} - 18 q^{61} + 12 q^{62} + 3 q^{63} + 6 q^{65} - 36 q^{66} + 12 q^{67} + 14 q^{69} - 2 q^{70} + 6 q^{71} + 5 q^{72} + 34 q^{73} + 54 q^{74} + 30 q^{75} + 6 q^{76} - 36 q^{78} + 8 q^{79} + 34 q^{80} + q^{81} - q^{82} + 6 q^{83} + 12 q^{84} - 37 q^{86} + 26 q^{87} - 42 q^{88} - 2 q^{89} + 23 q^{90} - 4 q^{91} + 24 q^{92} - 16 q^{93} + 10 q^{94} - 32 q^{95} - 12 q^{96} + 4 q^{97} + 2 q^{98} + 22 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{5} - 2x^{4} - 4x^{3} + 6x^{2} + 2x - 1 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( \nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( \nu^{2} - \nu - 2 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( \nu^{3} - \nu^{2} - 4\nu + 1 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( \nu^{4} - 2\nu^{3} - 4\nu^{2} + 6\nu + 2 \) Copy content Toggle raw display
\(\nu\)\(=\) \( \beta_1 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( \beta_{2} + \beta _1 + 2 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( \beta_{3} + \beta_{2} + 5\beta _1 + 1 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( \beta_{4} + 2\beta_{3} + 6\beta_{2} + 8\beta _1 + 8 \) 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
−1.75413
−0.526523
0.295797
1.43621
2.54865
−1.75413 −1.18405 1.07697 0.542135 2.07697 1.00000 1.61911 −1.59803 −0.950975
1.2 −0.526523 1.37273 −1.72277 3.68290 −0.722774 1.00000 1.96012 −1.11561 −1.93913
1.3 0.295797 −3.08490 −1.91250 0.755196 −0.912504 1.00000 −1.15731 6.51658 0.223385
1.4 1.43621 0.739927 0.0626866 −2.84507 1.06269 1.00000 −2.78238 −2.45251 −4.08610
1.5 2.54865 2.15629 4.49562 1.86484 5.49562 1.00000 6.36046 1.64957 4.75282
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 1.5
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(7\) \(-1\)
\(17\) \(1\)

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 2023.2.a.i 5
17.b even 2 1 2023.2.a.h 5
17.c even 4 2 119.2.b.a 10
51.f odd 4 2 1071.2.f.c 10
68.f odd 4 2 1904.2.c.i 10
119.f odd 4 2 833.2.b.a 10
119.m odd 12 4 833.2.j.d 20
119.n even 12 4 833.2.j.c 20
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
119.2.b.a 10 17.c even 4 2
833.2.b.a 10 119.f odd 4 2
833.2.j.c 20 119.n even 12 4
833.2.j.d 20 119.m odd 12 4
1071.2.f.c 10 51.f odd 4 2
1904.2.c.i 10 68.f odd 4 2
2023.2.a.h 5 17.b even 2 1
2023.2.a.i 5 1.a even 1 1 trivial

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(\Gamma_0(2023))\):

\( T_{2}^{5} - 2T_{2}^{4} - 4T_{2}^{3} + 6T_{2}^{2} + 2T_{2} - 1 \) Copy content Toggle raw display
\( T_{3}^{5} - 9T_{3}^{3} + 6T_{3}^{2} + 11T_{3} - 8 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{5} - 2 T^{4} + \cdots - 1 \) Copy content Toggle raw display
$3$ \( T^{5} - 9 T^{3} + \cdots - 8 \) Copy content Toggle raw display
$5$ \( T^{5} - 4 T^{4} + \cdots + 8 \) Copy content Toggle raw display
$7$ \( (T - 1)^{5} \) Copy content Toggle raw display
$11$ \( T^{5} - 40 T^{3} + \cdots - 640 \) Copy content Toggle raw display
$13$ \( T^{5} + 4 T^{4} + \cdots + 416 \) Copy content Toggle raw display
$17$ \( T^{5} \) Copy content Toggle raw display
$19$ \( T^{5} + 2 T^{4} + \cdots + 320 \) Copy content Toggle raw display
$23$ \( T^{5} - 14 T^{4} + \cdots + 128 \) Copy content Toggle raw display
$29$ \( T^{5} - 4 T^{4} + \cdots + 1024 \) Copy content Toggle raw display
$31$ \( T^{5} - 10 T^{4} + \cdots + 2840 \) Copy content Toggle raw display
$37$ \( T^{5} - 2 T^{4} + \cdots - 22016 \) Copy content Toggle raw display
$41$ \( T^{5} - 18 T^{4} + \cdots + 40 \) Copy content Toggle raw display
$43$ \( T^{5} + 8 T^{4} + \cdots - 4 \) Copy content Toggle raw display
$47$ \( T^{5} - 96 T^{3} + \cdots - 128 \) Copy content Toggle raw display
$53$ \( T^{5} + 4 T^{4} + \cdots - 1522 \) Copy content Toggle raw display
$59$ \( T^{5} + 28 T^{4} + \cdots - 4160 \) Copy content Toggle raw display
$61$ \( T^{5} + 18 T^{4} + \cdots - 40 \) Copy content Toggle raw display
$67$ \( T^{5} - 12 T^{4} + \cdots + 2404 \) Copy content Toggle raw display
$71$ \( T^{5} - 6 T^{4} + \cdots - 640 \) Copy content Toggle raw display
$73$ \( T^{5} - 34 T^{4} + \cdots + 12568 \) Copy content Toggle raw display
$79$ \( T^{5} - 8 T^{4} + \cdots - 25472 \) Copy content Toggle raw display
$83$ \( T^{5} - 6 T^{4} + \cdots + 64 \) Copy content Toggle raw display
$89$ \( T^{5} + 2 T^{4} + \cdots + 92320 \) Copy content Toggle raw display
$97$ \( T^{5} - 4 T^{4} + \cdots + 4904 \) Copy content Toggle raw display
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