Properties

Label 2-639-1.1-c1-0-16
Degree $2$
Conductor $639$
Sign $-1$
Analytic cond. $5.10244$
Root an. cond. $2.25885$
Motivic weight $1$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $1$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 2.07·2-s + 2.30·4-s + 0.0743·5-s + 1.39·7-s − 0.628·8-s − 0.154·10-s − 6.37·11-s − 2.33·13-s − 2.90·14-s − 3.30·16-s + 0.377·17-s + 7.75·19-s + 0.171·20-s + 13.2·22-s − 5.47·23-s − 4.99·25-s + 4.83·26-s + 3.22·28-s + 8.56·29-s − 3.25·31-s + 8.10·32-s − 0.782·34-s + 0.104·35-s − 7.65·37-s − 16.0·38-s − 0.0466·40-s − 9.41·41-s + ⋯
L(s)  = 1  − 1.46·2-s + 1.15·4-s + 0.0332·5-s + 0.528·7-s − 0.222·8-s − 0.0487·10-s − 1.92·11-s − 0.646·13-s − 0.775·14-s − 0.825·16-s + 0.0914·17-s + 1.77·19-s + 0.0382·20-s + 2.82·22-s − 1.14·23-s − 0.998·25-s + 0.948·26-s + 0.609·28-s + 1.59·29-s − 0.584·31-s + 1.43·32-s − 0.134·34-s + 0.0175·35-s − 1.25·37-s − 2.60·38-s − 0.00737·40-s − 1.47·41-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 639 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 639 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & -\, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(639\)    =    \(3^{2} \cdot 71\)
Sign: $-1$
Analytic conductor: \(5.10244\)
Root analytic conductor: \(2.25885\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(1\)
Selberg data: \((2,\ 639,\ (\ :1/2),\ -1)\)

Particular Values

\(L(1)\) \(=\) \(0\)
\(L(\frac12)\) \(=\) \(0\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad3 \( 1 \)
71 \( 1 + T \)
good2 \( 1 + 2.07T + 2T^{2} \)
5 \( 1 - 0.0743T + 5T^{2} \)
7 \( 1 - 1.39T + 7T^{2} \)
11 \( 1 + 6.37T + 11T^{2} \)
13 \( 1 + 2.33T + 13T^{2} \)
17 \( 1 - 0.377T + 17T^{2} \)
19 \( 1 - 7.75T + 19T^{2} \)
23 \( 1 + 5.47T + 23T^{2} \)
29 \( 1 - 8.56T + 29T^{2} \)
31 \( 1 + 3.25T + 31T^{2} \)
37 \( 1 + 7.65T + 37T^{2} \)
41 \( 1 + 9.41T + 41T^{2} \)
43 \( 1 + 0.589T + 43T^{2} \)
47 \( 1 - 7.65T + 47T^{2} \)
53 \( 1 + 3.19T + 53T^{2} \)
59 \( 1 + 5.43T + 59T^{2} \)
61 \( 1 + 11.4T + 61T^{2} \)
67 \( 1 + 8.47T + 67T^{2} \)
73 \( 1 - 9.40T + 73T^{2} \)
79 \( 1 + 9.88T + 79T^{2} \)
83 \( 1 + 1.08T + 83T^{2} \)
89 \( 1 + 5.17T + 89T^{2} \)
97 \( 1 + 7.48T + 97T^{2} \)
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   \(L(s) = \displaystyle\prod_p \ \prod_{j=1}^{2} (1 - \alpha_{j,p}\, p^{-s})^{-1}\)

Imaginary part of the first few zeros on the critical line

−10.16148377423652139391419176284, −9.370036587801871350385541032613, −8.206426522125203781471927125076, −7.83858284051030987119081705337, −7.08638884338583378538172436977, −5.58901124701804123965224585002, −4.75195734550767851345065043628, −2.93585400480560733819336149381, −1.73619587757259194725251892724, 0, 1.73619587757259194725251892724, 2.93585400480560733819336149381, 4.75195734550767851345065043628, 5.58901124701804123965224585002, 7.08638884338583378538172436977, 7.83858284051030987119081705337, 8.206426522125203781471927125076, 9.370036587801871350385541032613, 10.16148377423652139391419176284

Graph of the $Z$-function along the critical line