Properties

Label 1-856-856.213-r1-0-0
Degree $1$
Conductor $856$
Sign $1$
Analytic cond. $91.9899$
Root an. cond. $91.9899$
Motivic weight $0$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  − 3-s + 5-s − 7-s + 9-s − 11-s − 13-s − 15-s − 17-s − 19-s + 21-s + 23-s + 25-s − 27-s − 29-s − 31-s + 33-s − 35-s − 37-s + 39-s + 41-s + 43-s + 45-s + 47-s + 49-s + 51-s − 53-s − 55-s + ⋯
L(s)  = 1  − 3-s + 5-s − 7-s + 9-s − 11-s − 13-s − 15-s − 17-s − 19-s + 21-s + 23-s + 25-s − 27-s − 29-s − 31-s + 33-s − 35-s − 37-s + 39-s + 41-s + 43-s + 45-s + 47-s + 49-s + 51-s − 53-s − 55-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 856 ^{s/2} \, \Gamma_{\R}(s+1) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 856 ^{s/2} \, \Gamma_{\R}(s+1) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(1\)
Conductor: \(856\)    =    \(2^{3} \cdot 107\)
Sign: $1$
Analytic conductor: \(91.9899\)
Root analytic conductor: \(91.9899\)
Motivic weight: \(0\)
Rational: yes
Arithmetic: yes
Character: $\chi_{856} (213, \cdot )$
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((1,\ 856,\ (1:\ ),\ 1)\)

Particular Values

\(L(\frac{1}{2})\) \(\approx\) \(0.7038450385\)
\(L(\frac12)\) \(\approx\) \(0.7038450385\)
\(L(1)\) \(\approx\) \(0.6442645579\)
\(L(1)\) \(\approx\) \(0.6442645579\)

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
107 \( 1 \)
good3 \( 1 - T \)
5 \( 1 + T \)
7 \( 1 - T \)
11 \( 1 - T \)
13 \( 1 - T \)
17 \( 1 - T \)
19 \( 1 - T \)
23 \( 1 + T \)
29 \( 1 - T \)
31 \( 1 - T \)
37 \( 1 - T \)
41 \( 1 + T \)
43 \( 1 + T \)
47 \( 1 + T \)
53 \( 1 - T \)
59 \( 1 + T \)
61 \( 1 - T \)
67 \( 1 + T \)
71 \( 1 - T \)
73 \( 1 - T \)
79 \( 1 + T \)
83 \( 1 - T \)
89 \( 1 + T \)
97 \( 1 - T \)
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   \(L(s) = \displaystyle\prod_p \ (1 - \alpha_{p}\, p^{-s})^{-1}\)

Imaginary part of the first few zeros on the critical line

−22.05645270168107153036117376062, −21.27437978805747828099696512118, −20.47880933499774584506562094675, −19.235818457838139720437992878379, −18.67871842817893007130210228371, −17.66961281456379961355136120278, −17.19602763843263515024126292785, −16.422590747595537898630940719543, −15.61477867817811484303124136818, −14.75105964844771295088637799630, −13.45679934153755989426041750377, −12.8647641836046929001814493249, −12.43428494048814375083379407644, −10.94711037626755468040062597865, −10.576090743043904931637148848, −9.621466739496493000851883188283, −8.99638145084998511768768539504, −7.37884733144477432891396797836, −6.75766081479109013403732640223, −5.84360392149340000671020860587, −5.21999846072277285730719561983, −4.22457959404188806426440064400, −2.763966918551761783349191764945, −1.93054258424640892079651507759, −0.40225876930923032228253985738, 0.40225876930923032228253985738, 1.93054258424640892079651507759, 2.763966918551761783349191764945, 4.22457959404188806426440064400, 5.21999846072277285730719561983, 5.84360392149340000671020860587, 6.75766081479109013403732640223, 7.37884733144477432891396797836, 8.99638145084998511768768539504, 9.621466739496493000851883188283, 10.576090743043904931637148848, 10.94711037626755468040062597865, 12.43428494048814375083379407644, 12.8647641836046929001814493249, 13.45679934153755989426041750377, 14.75105964844771295088637799630, 15.61477867817811484303124136818, 16.422590747595537898630940719543, 17.19602763843263515024126292785, 17.66961281456379961355136120278, 18.67871842817893007130210228371, 19.235818457838139720437992878379, 20.47880933499774584506562094675, 21.27437978805747828099696512118, 22.05645270168107153036117376062

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