Properties

Label 722.2.a.n
Level $722$
Weight $2$
Character orbit 722.a
Self dual yes
Analytic conductor $5.765$
Analytic rank $0$
Dimension $4$
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] = [722,2,Mod(1,722)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(722, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([0]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("722.1");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 722 = 2 \cdot 19^{2} \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 722.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: \(5.76519902594\)
Analytic rank: \(0\)
Dimension: \(4\)
Coefficient field: \(\Q(\zeta_{20})^+\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{4} - 5x^{2} + 5 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{5}]\)
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 a basis \(1,\beta_1,\beta_2,\beta_3\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + q^{2} + (\beta_{3} + \beta_{2} + 1) q^{3} + q^{4} + (\beta_{3} - \beta_{2} - \beta_1 - 1) q^{5} + (\beta_{3} + \beta_{2} + 1) q^{6} + (\beta_{2} - \beta_1) q^{7} + q^{8} + (2 \beta_1 + 1) q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + q^{2} + (\beta_{3} + \beta_{2} + 1) q^{3} + q^{4} + (\beta_{3} - \beta_{2} - \beta_1 - 1) q^{5} + (\beta_{3} + \beta_{2} + 1) q^{6} + (\beta_{2} - \beta_1) q^{7} + q^{8} + (2 \beta_1 + 1) q^{9} + (\beta_{3} - \beta_{2} - \beta_1 - 1) q^{10} + (3 \beta_{2} + \beta_1 + 2) q^{11} + (\beta_{3} + \beta_{2} + 1) q^{12} + ( - \beta_{3} - \beta_{2} - \beta_1 + 4) q^{13} + (\beta_{2} - \beta_1) q^{14} + ( - \beta_{3} - 4 \beta_{2} - \beta_1 - 1) q^{15} + q^{16} + ( - \beta_{2} + 2 \beta_1 + 1) q^{17} + (2 \beta_1 + 1) q^{18} + (\beta_{3} - \beta_{2} - \beta_1 - 1) q^{20} + ( - 2 \beta_{3} - 2 \beta_{2}) q^{21} + (3 \beta_{2} + \beta_1 + 2) q^{22} + ( - 3 \beta_{3} + 3 \beta_{2} - 2 \beta_1 - 1) q^{23} + (\beta_{3} + \beta_{2} + 1) q^{24} + (2 \beta_{3} - 3 \beta_{2}) q^{25} + ( - \beta_{3} - \beta_{2} - \beta_1 + 4) q^{26} + (2 \beta_{2} + 2 \beta_1) q^{27} + (\beta_{2} - \beta_1) q^{28} + ( - \beta_{3} - 3 \beta_{2} + \beta_1 - 2) q^{29} + ( - \beta_{3} - 4 \beta_{2} - \beta_1 - 1) q^{30} + ( - \beta_{3} + \beta_{2} + 7) q^{31} + q^{32} + (4 \beta_{2} + 4 \beta_1 + 6) q^{33} + ( - \beta_{2} + 2 \beta_1 + 1) q^{34} + ( - \beta_{3} - \beta_{2} + 2 \beta_1 + 1) q^{35} + (2 \beta_1 + 1) q^{36} + ( - \beta_{3} - 2 \beta_1 + 1) q^{37} + (4 \beta_{3} + 3 \beta_{2} - 3 \beta_1) q^{39} + (\beta_{3} - \beta_{2} - \beta_1 - 1) q^{40} + ( - 2 \beta_{3} + 2 \beta_{2} - \beta_1 - 2) q^{41} + ( - 2 \beta_{3} - 2 \beta_{2}) q^{42} + ( - \beta_{3} - \beta_{2} + 2 \beta_1 - 3) q^{43} + (3 \beta_{2} + \beta_1 + 2) q^{44} + ( - \beta_{3} + \beta_{2} - 3 \beta_1 - 5) q^{45} + ( - 3 \beta_{3} + 3 \beta_{2} - 2 \beta_1 - 1) q^{46} + (\beta_{3} - 4 \beta_{2} + \beta_1 - 5) q^{47} + (\beta_{3} + \beta_{2} + 1) q^{48} + ( - 2 \beta_{3} - 3) q^{49} + (2 \beta_{3} - 3 \beta_{2}) q^{50} + (4 \beta_{3} + 5 \beta_{2} + \beta_1 + 2) q^{51} + ( - \beta_{3} - \beta_{2} - \beta_1 + 4) q^{52} + (3 \beta_{3} - 2 \beta_{2} + 1) q^{53} + (2 \beta_{2} + 2 \beta_1) q^{54} + ( - 5 \beta_{3} - \beta_{2} - 7) q^{55} + (\beta_{2} - \beta_1) q^{56} + ( - \beta_{3} - 3 \beta_{2} + \beta_1 - 2) q^{58} + (\beta_{3} + 2 \beta_{2} + \beta_1 - 1) q^{59} + ( - \beta_{3} - 4 \beta_{2} - \beta_1 - 1) q^{60} + ( - 2 \beta_{3} - 6 \beta_{2} - \beta_1 - 3) q^{61} + ( - \beta_{3} + \beta_{2} + 7) q^{62} + (2 \beta_{3} - \beta_{2} - \beta_1 - 6) q^{63} + q^{64} + (7 \beta_{3} - 2 \beta_{2} - 3 \beta_1 - 2) q^{65} + (4 \beta_{2} + 4 \beta_1 + 6) q^{66} + ( - 3 \beta_{3} - 3 \beta_{2} + 1) q^{67} + ( - \beta_{2} + 2 \beta_1 + 1) q^{68} + ( - 6 \beta_{3} - 2 \beta_{2} - 2 \beta_1 - 6) q^{69} + ( - \beta_{3} - \beta_{2} + 2 \beta_1 + 1) q^{70} + (3 \beta_{3} - 2 \beta_{2} - 3 \beta_1 - 1) q^{71} + (2 \beta_1 + 1) q^{72} + (2 \beta_{3} - \beta_{2} - 4) q^{73} + ( - \beta_{3} - 2 \beta_1 + 1) q^{74} + (3 \beta_{3} - 2 \beta_{2} - \beta_1 + 1) q^{75} + ( - 2 \beta_{3} - 2 \beta_{2} - 2 \beta_1) q^{77} + (4 \beta_{3} + 3 \beta_{2} - 3 \beta_1) q^{78} + (3 \beta_{3} + 3 \beta_{2} - 2 \beta_1 + 7) q^{79} + (\beta_{3} - \beta_{2} - \beta_1 - 1) q^{80} + (4 \beta_{2} - 2 \beta_1 + 1) q^{81} + ( - 2 \beta_{3} + 2 \beta_{2} - \beta_1 - 2) q^{82} + ( - 3 \beta_{3} - 8 \beta_{2} + 3 \beta_1 - 7) q^{83} + ( - 2 \beta_{3} - 2 \beta_{2}) q^{84} + (\beta_{3} + \beta_{2} - 4 \beta_1 - 4) q^{85} + ( - \beta_{3} - \beta_{2} + 2 \beta_1 - 3) q^{86} + (2 \beta_{3} + \beta_{2} - 3 \beta_1 - 6) q^{87} + (3 \beta_{2} + \beta_1 + 2) q^{88} + ( - 4 \beta_{3} - 4 \beta_{2} - \beta_1 - 6) q^{89} + ( - \beta_{3} + \beta_{2} - 3 \beta_1 - 5) q^{90} + (\beta_{3} + 8 \beta_{2} - 5 \beta_1 + 3) q^{91} + ( - 3 \beta_{3} + 3 \beta_{2} - 2 \beta_1 - 1) q^{92} + (6 \beta_{3} + 8 \beta_{2} + 6) q^{93} + (\beta_{3} - 4 \beta_{2} + \beta_1 - 5) q^{94} + (\beta_{3} + \beta_{2} + 1) q^{96} + (\beta_{3} - 2 \beta_{2} + 6 \beta_1 + 6) q^{97} + ( - 2 \beta_{3} - 3) q^{98} + (6 \beta_{3} + 5 \beta_{2} + 5 \beta_1 + 8) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 4 q + 4 q^{2} + 2 q^{3} + 4 q^{4} - 2 q^{5} + 2 q^{6} - 2 q^{7} + 4 q^{8} + 4 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 4 q + 4 q^{2} + 2 q^{3} + 4 q^{4} - 2 q^{5} + 2 q^{6} - 2 q^{7} + 4 q^{8} + 4 q^{9} - 2 q^{10} + 2 q^{11} + 2 q^{12} + 18 q^{13} - 2 q^{14} + 4 q^{15} + 4 q^{16} + 6 q^{17} + 4 q^{18} - 2 q^{20} + 4 q^{21} + 2 q^{22} - 10 q^{23} + 2 q^{24} + 6 q^{25} + 18 q^{26} - 4 q^{27} - 2 q^{28} - 2 q^{29} + 4 q^{30} + 26 q^{31} + 4 q^{32} + 16 q^{33} + 6 q^{34} + 6 q^{35} + 4 q^{36} + 4 q^{37} - 6 q^{39} - 2 q^{40} - 12 q^{41} + 4 q^{42} - 10 q^{43} + 2 q^{44} - 22 q^{45} - 10 q^{46} - 12 q^{47} + 2 q^{48} - 12 q^{49} + 6 q^{50} - 2 q^{51} + 18 q^{52} + 8 q^{53} - 4 q^{54} - 26 q^{55} - 2 q^{56} - 2 q^{58} - 8 q^{59} + 4 q^{60} + 26 q^{62} - 22 q^{63} + 4 q^{64} - 4 q^{65} + 16 q^{66} + 10 q^{67} + 6 q^{68} - 20 q^{69} + 6 q^{70} + 4 q^{72} - 14 q^{73} + 4 q^{74} + 8 q^{75} + 4 q^{77} - 6 q^{78} + 22 q^{79} - 2 q^{80} - 4 q^{81} - 12 q^{82} - 12 q^{83} + 4 q^{84} - 18 q^{85} - 10 q^{86} - 26 q^{87} + 2 q^{88} - 16 q^{89} - 22 q^{90} - 4 q^{91} - 10 q^{92} + 8 q^{93} - 12 q^{94} + 2 q^{96} + 28 q^{97} - 12 q^{98} + 22 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of \(\nu = \zeta_{20} + \zeta_{20}^{-1}\):

\(\beta_{1}\)\(=\) \( \nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( \nu^{2} - 3 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( \nu^{3} - 3\nu \) Copy content Toggle raw display
\(\nu\)\(=\) \( \beta_1 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( \beta_{2} + 3 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( \beta_{3} + 3\beta_1 \) 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
1.17557
−1.90211
−1.17557
1.90211
1.00000 −2.52015 1.00000 −2.45965 −2.52015 −2.79360 1.00000 3.35114 −2.45965
1.2 1.00000 0.442463 1.00000 −0.891491 0.442463 2.52015 1.00000 −2.80423 −0.891491
1.3 1.00000 1.28408 1.00000 3.69572 1.28408 −0.442463 1.00000 −1.35114 3.69572
1.4 1.00000 2.79360 1.00000 −2.34458 2.79360 −1.28408 1.00000 4.80423 −2.34458
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(2\) \(-1\)
\(19\) \(1\)

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 722.2.a.n yes 4
3.b odd 2 1 6498.2.a.bx 4
4.b odd 2 1 5776.2.a.bt 4
19.b odd 2 1 722.2.a.m 4
19.c even 3 2 722.2.c.m 8
19.d odd 6 2 722.2.c.n 8
19.e even 9 6 722.2.e.r 24
19.f odd 18 6 722.2.e.s 24
57.d even 2 1 6498.2.a.ca 4
76.d even 2 1 5776.2.a.bv 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
722.2.a.m 4 19.b odd 2 1
722.2.a.n yes 4 1.a even 1 1 trivial
722.2.c.m 8 19.c even 3 2
722.2.c.n 8 19.d odd 6 2
722.2.e.r 24 19.e even 9 6
722.2.e.s 24 19.f odd 18 6
5776.2.a.bt 4 4.b odd 2 1
5776.2.a.bv 4 76.d even 2 1
6498.2.a.bx 4 3.b odd 2 1
6498.2.a.ca 4 57.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 \(S_{2}^{\mathrm{new}}(\Gamma_0(722))\):

\( T_{3}^{4} - 2T_{3}^{3} - 6T_{3}^{2} + 12T_{3} - 4 \) Copy content Toggle raw display
\( T_{5}^{4} + 2T_{5}^{3} - 11T_{5}^{2} - 32T_{5} - 19 \) Copy content Toggle raw display
\( T_{7}^{4} + 2T_{7}^{3} - 6T_{7}^{2} - 12T_{7} - 4 \) Copy content Toggle raw display
\( T_{13}^{4} - 18T_{13}^{3} + 109T_{13}^{2} - 232T_{13} + 61 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( (T - 1)^{4} \) Copy content Toggle raw display
$3$ \( T^{4} - 2 T^{3} - 6 T^{2} + 12 T - 4 \) Copy content Toggle raw display
$5$ \( T^{4} + 2 T^{3} - 11 T^{2} - 32 T - 19 \) Copy content Toggle raw display
$7$ \( T^{4} + 2 T^{3} - 6 T^{2} - 12 T - 4 \) Copy content Toggle raw display
$11$ \( T^{4} - 2 T^{3} - 26 T^{2} + 12 T + 76 \) Copy content Toggle raw display
$13$ \( T^{4} - 18 T^{3} + 109 T^{2} + \cdots + 61 \) Copy content Toggle raw display
$17$ \( T^{4} - 6 T^{3} - 9 T^{2} + 74 T - 19 \) Copy content Toggle raw display
$19$ \( T^{4} \) Copy content Toggle raw display
$23$ \( T^{4} + 10 T^{3} - 50 T^{2} + \cdots - 1220 \) Copy content Toggle raw display
$29$ \( T^{4} + 2 T^{3} - 31 T^{2} - 92 T - 19 \) Copy content Toggle raw display
$31$ \( T^{4} - 26 T^{3} + 246 T^{2} + \cdots + 1436 \) Copy content Toggle raw display
$37$ \( T^{4} - 4 T^{3} - 19 T^{2} + 46 T - 19 \) Copy content Toggle raw display
$41$ \( T^{4} + 12 T^{3} + 19 T^{2} + \cdots - 359 \) Copy content Toggle raw display
$43$ \( T^{4} + 10 T^{3} + 10 T^{2} + \cdots - 100 \) Copy content Toggle raw display
$47$ \( T^{4} + 12 T^{3} + 4 T^{2} - 112 T + 76 \) Copy content Toggle raw display
$53$ \( T^{4} - 8 T^{3} - 31 T^{2} + 98 T + 181 \) Copy content Toggle raw display
$59$ \( T^{4} + 8 T^{3} + 4 T^{2} - 88 T - 164 \) Copy content Toggle raw display
$61$ \( T^{4} - 115 T^{2} + 150 T + 1025 \) Copy content Toggle raw display
$67$ \( T^{4} - 10 T^{3} - 30 T^{2} + 140 T - 20 \) Copy content Toggle raw display
$71$ \( T^{4} - 100 T^{2} - 360 T - 20 \) Copy content Toggle raw display
$73$ \( T^{4} + 14 T^{3} + 51 T^{2} + \cdots - 139 \) Copy content Toggle raw display
$79$ \( T^{4} - 22 T^{3} + 94 T^{2} + \cdots - 4724 \) Copy content Toggle raw display
$83$ \( T^{4} + 12 T^{3} - 196 T^{2} + \cdots - 6884 \) Copy content Toggle raw display
$89$ \( T^{4} + 16 T^{3} - 29 T^{2} + \cdots - 1159 \) Copy content Toggle raw display
$97$ \( T^{4} - 28 T^{3} + 99 T^{2} + \cdots - 7979 \) Copy content Toggle raw display
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