Properties

Label 2-639-1.1-c1-0-0
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 $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 1.91·2-s + 1.65·4-s − 3.25·5-s − 3.82·7-s + 0.656·8-s + 6.22·10-s − 1.31·11-s − 3.31·13-s + 7.31·14-s − 4.56·16-s − 5.13·17-s + 5.48·19-s − 5.39·20-s + 2.51·22-s + 4·23-s + 5.59·25-s + 6.33·26-s − 6.33·28-s − 4.59·29-s + 4·31-s + 7.42·32-s + 9.82·34-s + 12.4·35-s − 5.65·37-s − 10.4·38-s − 2.13·40-s + 9.64·41-s + ⋯
L(s)  = 1  − 1.35·2-s + 0.828·4-s − 1.45·5-s − 1.44·7-s + 0.232·8-s + 1.96·10-s − 0.395·11-s − 0.918·13-s + 1.95·14-s − 1.14·16-s − 1.24·17-s + 1.25·19-s − 1.20·20-s + 0.535·22-s + 0.834·23-s + 1.11·25-s + 1.24·26-s − 1.19·28-s − 0.854·29-s + 0.718·31-s + 1.31·32-s + 1.68·34-s + 2.10·35-s − 0.929·37-s − 1.70·38-s − 0.337·40-s + 1.50·41-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: \(0\)
Selberg data: \((2,\ 639,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(0.2436583954\)
\(L(\frac12)\) \(\approx\) \(0.2436583954\)
\(L(\frac{3}{2})\) 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 \( 1 + 1.91T + 2T^{2} \)
5 \( 1 + 3.25T + 5T^{2} \)
7 \( 1 + 3.82T + 7T^{2} \)
11 \( 1 + 1.31T + 11T^{2} \)
13 \( 1 + 3.31T + 13T^{2} \)
17 \( 1 + 5.13T + 17T^{2} \)
19 \( 1 - 5.48T + 19T^{2} \)
23 \( 1 - 4T + 23T^{2} \)
29 \( 1 + 4.59T + 29T^{2} \)
31 \( 1 - 4T + 31T^{2} \)
37 \( 1 + 5.65T + 37T^{2} \)
41 \( 1 - 9.64T + 41T^{2} \)
43 \( 1 - 1.43T + 43T^{2} \)
47 \( 1 + 7.13T + 47T^{2} \)
53 \( 1 - 8.62T + 53T^{2} \)
59 \( 1 - 4.51T + 59T^{2} \)
61 \( 1 + 3.64T + 61T^{2} \)
67 \( 1 + 5.31T + 67T^{2} \)
73 \( 1 - 16.3T + 73T^{2} \)
79 \( 1 - 5.08T + 79T^{2} \)
83 \( 1 - 10.1T + 83T^{2} \)
89 \( 1 - 3.22T + 89T^{2} \)
97 \( 1 - 11.8T + 97T^{2} \)
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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

−10.42203499405892753343249522909, −9.506328799106680047107312272059, −9.010557068323536213873007641443, −7.927870934091078283875683935221, −7.31124187205206798321064111315, −6.64805170422585348217990203977, −4.98073530970822826741396555826, −3.80473500417618946989325561905, −2.65553038912858336648600127014, −0.49134239846547884008346021973, 0.49134239846547884008346021973, 2.65553038912858336648600127014, 3.80473500417618946989325561905, 4.98073530970822826741396555826, 6.64805170422585348217990203977, 7.31124187205206798321064111315, 7.927870934091078283875683935221, 9.010557068323536213873007641443, 9.506328799106680047107312272059, 10.42203499405892753343249522909

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