Properties

Label 2-806-1.1-c1-0-9
Degree $2$
Conductor $806$
Sign $1$
Analytic cond. $6.43594$
Root an. cond. $2.53691$
Motivic weight $1$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 2-s − 3-s + 4-s + 5-s − 6-s + 3·7-s + 8-s − 2·9-s + 10-s + 2·11-s − 12-s + 13-s + 3·14-s − 15-s + 16-s + 3·17-s − 2·18-s + 20-s − 3·21-s + 2·22-s − 6·23-s − 24-s − 4·25-s + 26-s + 5·27-s + 3·28-s + 10·29-s + ⋯
L(s)  = 1  + 0.707·2-s − 0.577·3-s + 1/2·4-s + 0.447·5-s − 0.408·6-s + 1.13·7-s + 0.353·8-s − 2/3·9-s + 0.316·10-s + 0.603·11-s − 0.288·12-s + 0.277·13-s + 0.801·14-s − 0.258·15-s + 1/4·16-s + 0.727·17-s − 0.471·18-s + 0.223·20-s − 0.654·21-s + 0.426·22-s − 1.25·23-s − 0.204·24-s − 4/5·25-s + 0.196·26-s + 0.962·27-s + 0.566·28-s + 1.85·29-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 806 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 806 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(806\)    =    \(2 \cdot 13 \cdot 31\)
Sign: $1$
Analytic conductor: \(6.43594\)
Root analytic conductor: \(2.53691\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 806,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(2.387036799\)
\(L(\frac12)\) \(\approx\) \(2.387036799\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 - T \)
13 \( 1 - T \)
31 \( 1 - T \)
good3 \( 1 + T + p T^{2} \)
5 \( 1 - T + p T^{2} \)
7 \( 1 - 3 T + p T^{2} \)
11 \( 1 - 2 T + p T^{2} \)
17 \( 1 - 3 T + p T^{2} \)
19 \( 1 + p T^{2} \)
23 \( 1 + 6 T + p T^{2} \)
29 \( 1 - 10 T + p T^{2} \)
37 \( 1 - 3 T + p T^{2} \)
41 \( 1 - 2 T + p T^{2} \)
43 \( 1 - 9 T + p T^{2} \)
47 \( 1 - 3 T + p T^{2} \)
53 \( 1 + 6 T + p T^{2} \)
59 \( 1 + 10 T + p T^{2} \)
61 \( 1 + 8 T + p T^{2} \)
67 \( 1 - 8 T + p T^{2} \)
71 \( 1 + 3 T + p T^{2} \)
73 \( 1 + 6 T + p T^{2} \)
79 \( 1 - 10 T + p T^{2} \)
83 \( 1 + 6 T + p T^{2} \)
89 \( 1 + p T^{2} \)
97 \( 1 + 12 T + p T^{2} \)
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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

−10.54670358937597558505690886218, −9.535113060250141036109461404014, −8.373342967914969728100188752283, −7.70239093051095379852384751914, −6.33895221476746844531501592276, −5.87444795069881235921757318675, −4.94656338872407950490486617667, −4.07070110757789664824492907744, −2.66991230698432885978994611145, −1.35551287918471271219119708450, 1.35551287918471271219119708450, 2.66991230698432885978994611145, 4.07070110757789664824492907744, 4.94656338872407950490486617667, 5.87444795069881235921757318675, 6.33895221476746844531501592276, 7.70239093051095379852384751914, 8.373342967914969728100188752283, 9.535113060250141036109461404014, 10.54670358937597558505690886218

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