Properties

Label 2-639-213.44-c1-0-16
Degree $2$
Conductor $639$
Sign $-0.857 + 0.515i$
Analytic cond. $5.10244$
Root an. cond. $2.25885$
Motivic weight $1$
Arithmetic yes
Rational no
Primitive yes
Self-dual no
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + (−1.28 − 0.850i)2-s + (0.151 + 0.354i)4-s + (1.87 − 2.58i)5-s + (−0.371 + 0.990i)7-s + (−0.445 + 2.45i)8-s + (−4.61 + 1.73i)10-s + (0.641 − 4.73i)11-s + (1.50 − 0.204i)13-s + (1.32 − 0.960i)14-s + (3.19 − 3.34i)16-s + (1.00 − 3.10i)17-s + (−4.90 + 2.92i)19-s + (1.19 + 0.273i)20-s + (−4.85 + 5.55i)22-s + (3.99 − 5.01i)23-s + ⋯
L(s)  = 1  + (−0.911 − 0.601i)2-s + (0.0757 + 0.177i)4-s + (0.838 − 1.15i)5-s + (−0.140 + 0.374i)7-s + (−0.157 + 0.867i)8-s + (−1.45 + 0.547i)10-s + (0.193 − 1.42i)11-s + (0.418 − 0.0567i)13-s + (0.353 − 0.256i)14-s + (0.798 − 0.835i)16-s + (0.244 − 0.753i)17-s + (−1.12 + 0.671i)19-s + (0.267 + 0.0611i)20-s + (−1.03 + 1.18i)22-s + (0.833 − 1.04i)23-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 639 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & (-0.857 + 0.515i)\, \overline{\Lambda}(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 639 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & (-0.857 + 0.515i)\, \overline{\Lambda}(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(639\)    =    \(3^{2} \cdot 71\)
Sign: $-0.857 + 0.515i$
Analytic conductor: \(5.10244\)
Root analytic conductor: \(2.25885\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: $\chi_{639} (44, \cdot )$
Primitive: yes
Self-dual: no
Analytic rank: \(0\)
Selberg data: \((2,\ 639,\ (\ :1/2),\ -0.857 + 0.515i)\)

Particular Values

\(L(1)\) \(\approx\) \(0.236573 - 0.853021i\)
\(L(\frac12)\) \(\approx\) \(0.236573 - 0.853021i\)
\(L(\frac{3}{2})\) 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 \( 1 + (6.70 + 5.09i)T \)
good2 \( 1 + (1.28 + 0.850i)T + (0.786 + 1.83i)T^{2} \)
5 \( 1 + (-1.87 + 2.58i)T + (-1.54 - 4.75i)T^{2} \)
7 \( 1 + (0.371 - 0.990i)T + (-5.27 - 4.60i)T^{2} \)
11 \( 1 + (-0.641 + 4.73i)T + (-10.6 - 2.92i)T^{2} \)
13 \( 1 + (-1.50 + 0.204i)T + (12.5 - 3.45i)T^{2} \)
17 \( 1 + (-1.00 + 3.10i)T + (-13.7 - 9.99i)T^{2} \)
19 \( 1 + (4.90 - 2.92i)T + (9.00 - 16.7i)T^{2} \)
23 \( 1 + (-3.99 + 5.01i)T + (-5.11 - 22.4i)T^{2} \)
29 \( 1 + (-1.87 - 2.15i)T + (-3.89 + 28.7i)T^{2} \)
31 \( 1 + (-0.432 + 0.413i)T + (1.39 - 30.9i)T^{2} \)
37 \( 1 + (-0.542 - 0.679i)T + (-8.23 + 36.0i)T^{2} \)
41 \( 1 + (8.80 - 4.24i)T + (25.5 - 32.0i)T^{2} \)
43 \( 1 + (0.369 + 8.23i)T + (-42.8 + 3.85i)T^{2} \)
47 \( 1 + (11.3 + 1.02i)T + (46.2 + 8.39i)T^{2} \)
53 \( 1 + (-1.38 + 3.24i)T + (-36.6 - 38.3i)T^{2} \)
59 \( 1 + (2.65 + 4.93i)T + (-32.5 + 49.2i)T^{2} \)
61 \( 1 + (-0.00732 - 0.0195i)T + (-45.9 + 40.1i)T^{2} \)
67 \( 1 + (1.39 - 0.595i)T + (46.3 - 48.4i)T^{2} \)
73 \( 1 + (-4.03 + 6.11i)T + (-28.6 - 67.1i)T^{2} \)
79 \( 1 + (-4.58 - 0.832i)T + (73.9 + 27.7i)T^{2} \)
83 \( 1 + (14.1 - 7.59i)T + (45.7 - 69.2i)T^{2} \)
89 \( 1 + (1.81 + 0.774i)T + (61.5 + 64.3i)T^{2} \)
97 \( 1 + (0.197 - 0.409i)T + (-60.4 - 75.8i)T^{2} \)
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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

−10.13567702094923098614095597326, −9.260312964761943496430331428201, −8.620888278312644867830550076371, −8.297927266498844697562341391566, −6.46413184704649162487568461329, −5.63170755708971762694468752741, −4.83446064083493526673516525921, −3.12086121870046117349848760543, −1.80273257603116725561365845828, −0.67320150419566838251278484204, 1.74436890810619488951244445707, 3.19475445589574173847889837337, 4.41295272808973714358485414916, 5.98945281830215957934169815075, 6.81863566972655915156845859734, 7.19302617304351462653950644955, 8.312837659771616630524614498711, 9.266377125922792789880570439485, 10.04238475011924223712021082282, 10.44567558668313305269090349705

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