Properties

Label 4205.2.a.f
Level $4205$
Weight $2$
Character orbit 4205.a
Self dual yes
Analytic conductor $33.577$
Analytic rank $0$
Dimension $3$
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] = [4205,2,Mod(1,4205)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(4205, 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("4205.1");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 4205 = 5 \cdot 29^{2} \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 4205.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: \(33.5770940499\)
Analytic rank: \(0\)
Dimension: \(3\)
Coefficient field: 3.3.148.1
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{3} - x^{2} - 3x + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 145)
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 \(1,\beta_1,\beta_2\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q - \beta_1 q^{2} + (\beta_{2} + \beta_1 - 1) q^{3} + (\beta_{2} + \beta_1) q^{4} + q^{5} + ( - \beta_{2} - \beta_1 - 1) q^{6} + (\beta_{2} + \beta_1 + 1) q^{7} + ( - \beta_{2} - 1) q^{8} + ( - 2 \beta_{2} + 1) q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q - \beta_1 q^{2} + (\beta_{2} + \beta_1 - 1) q^{3} + (\beta_{2} + \beta_1) q^{4} + q^{5} + ( - \beta_{2} - \beta_1 - 1) q^{6} + (\beta_{2} + \beta_1 + 1) q^{7} + ( - \beta_{2} - 1) q^{8} + ( - 2 \beta_{2} + 1) q^{9} - \beta_1 q^{10} + ( - \beta_{2} + \beta_1 - 1) q^{11} + ( - \beta_{2} + \beta_1 + 3) q^{12} - 2 \beta_1 q^{13} + ( - \beta_{2} - 3 \beta_1 - 1) q^{14} + (\beta_{2} + \beta_1 - 1) q^{15} + ( - 2 \beta_{2} - 1) q^{16} + ( - 3 \beta_{2} + \beta_1 + 1) q^{17} + (\beta_1 - 2) q^{18} + (\beta_{2} + \beta_1 + 3) q^{19} + (\beta_{2} + \beta_1) q^{20} + (2 \beta_1 + 2) q^{21} + ( - \beta_{2} + \beta_1 - 3) q^{22} + ( - \beta_{2} + \beta_1 + 5) q^{23} + (\beta_{2} - \beta_1 - 1) q^{24} + q^{25} + (2 \beta_{2} + 2 \beta_1 + 4) q^{26} + (2 \beta_{2} - 2 \beta_1 - 2) q^{27} + (\beta_{2} + 3 \beta_1 + 3) q^{28} + ( - \beta_{2} - \beta_1 - 1) q^{30} + ( - \beta_{2} - \beta_1 + 5) q^{31} + (2 \beta_{2} + 3 \beta_1) q^{32} + 2 \beta_{2} q^{33} + ( - \beta_{2} + \beta_1 - 5) q^{34} + (\beta_{2} + \beta_1 + 1) q^{35} + (3 \beta_{2} + \beta_1 - 4) q^{36} + (3 \beta_{2} - \beta_1 + 3) q^{37} + ( - \beta_{2} - 5 \beta_1 - 1) q^{38} + ( - 2 \beta_{2} - 2 \beta_1 - 2) q^{39} + ( - \beta_{2} - 1) q^{40} + (2 \beta_{2} - 4 \beta_1 + 2) q^{41} + ( - 2 \beta_{2} - 4 \beta_1 - 4) q^{42} + ( - 5 \beta_{2} - 5 \beta_1 + 1) q^{43} + (\beta_{2} + \beta_1 - 1) q^{44} + ( - 2 \beta_{2} + 1) q^{45} + ( - \beta_{2} - 5 \beta_1 - 3) q^{46} + (\beta_{2} + \beta_1 - 5) q^{47} + (3 \beta_{2} - \beta_1 - 3) q^{48} + (2 \beta_{2} + 4 \beta_1 - 3) q^{49} - \beta_1 q^{50} + (8 \beta_{2} + 2 \beta_1 - 6) q^{51} + ( - 2 \beta_{2} - 4 \beta_1 - 2) q^{52} + ( - 2 \beta_{2} + 2) q^{53} + (2 \beta_{2} + 2 \beta_1 + 6) q^{54} + ( - \beta_{2} + \beta_1 - 1) q^{55} + ( - \beta_{2} - \beta_1 - 3) q^{56} + (2 \beta_{2} + 4 \beta_1) q^{57} + (2 \beta_{2} - 4 \beta_1 + 4) q^{59} + ( - \beta_{2} + \beta_1 + 3) q^{60} + 6 \beta_1 q^{61} + (\beta_{2} - 3 \beta_1 + 1) q^{62} + (\beta_{2} + \beta_1 - 3) q^{63} + (\beta_{2} - 5 \beta_1 - 2) q^{64} - 2 \beta_1 q^{65} + ( - 2 \beta_1 + 2) q^{66} + ( - \beta_{2} + \beta_1 + 9) q^{67} + (5 \beta_{2} + 3 \beta_1 - 5) q^{68} + (8 \beta_{2} + 6 \beta_1 - 6) q^{69} + ( - \beta_{2} - 3 \beta_1 - 1) q^{70} + ( - 2 \beta_{2} + 4 \beta_1 + 8) q^{71} + ( - \beta_{2} - 2 \beta_1 + 5) q^{72} + (7 \beta_{2} + \beta_1 + 5) q^{73} + (\beta_{2} - 5 \beta_1 + 5) q^{74} + (\beta_{2} + \beta_1 - 1) q^{75} + (3 \beta_{2} + 5 \beta_1 + 3) q^{76} + (2 \beta_1 - 2) q^{77} + (2 \beta_{2} + 6 \beta_1 + 2) q^{78} + (5 \beta_{2} + 3 \beta_1 + 1) q^{79} + ( - 2 \beta_{2} - 1) q^{80} + ( - 2 \beta_{2} - 4 \beta_1 + 1) q^{81} + (4 \beta_{2} + 10) q^{82} + ( - 3 \beta_{2} - 3 \beta_1 + 5) q^{83} + (4 \beta_{2} + 6 \beta_1 + 2) q^{84} + ( - 3 \beta_{2} + \beta_1 + 1) q^{85} + (5 \beta_{2} + 9 \beta_1 + 5) q^{86} + (\beta_{2} - 3 \beta_1 + 5) q^{88} + ( - 2 \beta_{2} - 2 \beta_1 + 4) q^{89} + (\beta_1 - 2) q^{90} + ( - 2 \beta_{2} - 6 \beta_1 - 2) q^{91} + (7 \beta_{2} + 7 \beta_1 - 1) q^{92} + (6 \beta_{2} + 4 \beta_1 - 8) q^{93} + ( - \beta_{2} + 3 \beta_1 - 1) q^{94} + (\beta_{2} + \beta_1 + 3) q^{95} + ( - \beta_{2} + 3 \beta_1 + 7) q^{96} + ( - 3 \beta_{2} - 5 \beta_1 - 1) q^{97} + ( - 4 \beta_{2} - 3 \beta_1 - 6) q^{98} + ( - \beta_{2} - 3 \beta_1 + 7) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 3 q - q^{2} - 2 q^{3} + q^{4} + 3 q^{5} - 4 q^{6} + 4 q^{7} - 3 q^{8} + 3 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 3 q - q^{2} - 2 q^{3} + q^{4} + 3 q^{5} - 4 q^{6} + 4 q^{7} - 3 q^{8} + 3 q^{9} - q^{10} - 2 q^{11} + 10 q^{12} - 2 q^{13} - 6 q^{14} - 2 q^{15} - 3 q^{16} + 4 q^{17} - 5 q^{18} + 10 q^{19} + q^{20} + 8 q^{21} - 8 q^{22} + 16 q^{23} - 4 q^{24} + 3 q^{25} + 14 q^{26} - 8 q^{27} + 12 q^{28} - 4 q^{30} + 14 q^{31} + 3 q^{32} - 14 q^{34} + 4 q^{35} - 11 q^{36} + 8 q^{37} - 8 q^{38} - 8 q^{39} - 3 q^{40} + 2 q^{41} - 16 q^{42} - 2 q^{43} - 2 q^{44} + 3 q^{45} - 14 q^{46} - 14 q^{47} - 10 q^{48} - 5 q^{49} - q^{50} - 16 q^{51} - 10 q^{52} + 6 q^{53} + 20 q^{54} - 2 q^{55} - 10 q^{56} + 4 q^{57} + 8 q^{59} + 10 q^{60} + 6 q^{61} - 8 q^{63} - 11 q^{64} - 2 q^{65} + 4 q^{66} + 28 q^{67} - 12 q^{68} - 12 q^{69} - 6 q^{70} + 28 q^{71} + 13 q^{72} + 16 q^{73} + 10 q^{74} - 2 q^{75} + 14 q^{76} - 4 q^{77} + 12 q^{78} + 6 q^{79} - 3 q^{80} - q^{81} + 30 q^{82} + 12 q^{83} + 12 q^{84} + 4 q^{85} + 24 q^{86} + 12 q^{88} + 10 q^{89} - 5 q^{90} - 12 q^{91} + 4 q^{92} - 20 q^{93} + 10 q^{95} + 24 q^{96} - 8 q^{97} - 21 q^{98} + 18 q^{99}+O(q^{100}) \) Copy content Toggle raw display

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

\(\beta_{1}\)\(=\) \( \nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( \nu^{2} - \nu - 2 \) Copy content Toggle raw display
\(\nu\)\(=\) \( \beta_1 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( \beta_{2} + \beta _1 + 2 \) 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
2.17009
0.311108
−1.48119
−2.17009 1.70928 2.70928 1.00000 −3.70928 3.70928 −1.53919 −0.0783777 −2.17009
1.2 −0.311108 −2.90321 −1.90321 1.00000 0.903212 −0.903212 1.21432 5.42864 −0.311108
1.3 1.48119 −0.806063 0.193937 1.00000 −1.19394 1.19394 −2.67513 −2.35026 1.48119
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(5\) \(-1\)
\(29\) \(1\)

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 4205.2.a.f 3
29.b even 2 1 145.2.a.c 3
87.d odd 2 1 1305.2.a.p 3
116.d odd 2 1 2320.2.a.n 3
145.d even 2 1 725.2.a.e 3
145.h odd 4 2 725.2.b.e 6
203.c odd 2 1 7105.2.a.o 3
232.b odd 2 1 9280.2.a.br 3
232.g even 2 1 9280.2.a.bj 3
435.b odd 2 1 6525.2.a.be 3
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
145.2.a.c 3 29.b even 2 1
725.2.a.e 3 145.d even 2 1
725.2.b.e 6 145.h odd 4 2
1305.2.a.p 3 87.d odd 2 1
2320.2.a.n 3 116.d odd 2 1
4205.2.a.f 3 1.a even 1 1 trivial
6525.2.a.be 3 435.b odd 2 1
7105.2.a.o 3 203.c odd 2 1
9280.2.a.bj 3 232.g even 2 1
9280.2.a.br 3 232.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 \(S_{2}^{\mathrm{new}}(\Gamma_0(4205))\):

\( T_{2}^{3} + T_{2}^{2} - 3T_{2} - 1 \) Copy content Toggle raw display
\( T_{3}^{3} + 2T_{3}^{2} - 4T_{3} - 4 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{3} + T^{2} - 3T - 1 \) Copy content Toggle raw display
$3$ \( T^{3} + 2 T^{2} + \cdots - 4 \) Copy content Toggle raw display
$5$ \( (T - 1)^{3} \) Copy content Toggle raw display
$7$ \( T^{3} - 4T^{2} + 4 \) Copy content Toggle raw display
$11$ \( T^{3} + 2 T^{2} + \cdots + 4 \) Copy content Toggle raw display
$13$ \( T^{3} + 2 T^{2} + \cdots - 8 \) Copy content Toggle raw display
$17$ \( T^{3} - 4 T^{2} + \cdots + 68 \) Copy content Toggle raw display
$19$ \( T^{3} - 10 T^{2} + \cdots - 20 \) Copy content Toggle raw display
$23$ \( T^{3} - 16 T^{2} + \cdots - 92 \) Copy content Toggle raw display
$29$ \( T^{3} \) Copy content Toggle raw display
$31$ \( T^{3} - 14 T^{2} + \cdots - 76 \) Copy content Toggle raw display
$37$ \( T^{3} - 8 T^{2} + \cdots + 92 \) Copy content Toggle raw display
$41$ \( T^{3} - 2 T^{2} + \cdots - 232 \) Copy content Toggle raw display
$43$ \( T^{3} + 2 T^{2} + \cdots + 4 \) Copy content Toggle raw display
$47$ \( T^{3} + 14 T^{2} + \cdots + 76 \) Copy content Toggle raw display
$53$ \( T^{3} - 6 T^{2} + \cdots + 8 \) Copy content Toggle raw display
$59$ \( T^{3} - 8 T^{2} + \cdots - 80 \) Copy content Toggle raw display
$61$ \( T^{3} - 6 T^{2} + \cdots + 216 \) Copy content Toggle raw display
$67$ \( T^{3} - 28 T^{2} + \cdots - 716 \) Copy content Toggle raw display
$71$ \( T^{3} - 28 T^{2} + \cdots + 272 \) Copy content Toggle raw display
$73$ \( T^{3} - 16 T^{2} + \cdots + 1700 \) Copy content Toggle raw display
$79$ \( T^{3} - 6 T^{2} + \cdots + 460 \) Copy content Toggle raw display
$83$ \( T^{3} - 12T^{2} + 148 \) Copy content Toggle raw display
$89$ \( T^{3} - 10 T^{2} + \cdots + 40 \) Copy content Toggle raw display
$97$ \( T^{3} + 8 T^{2} + \cdots + 76 \) Copy content Toggle raw display
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