Properties

Label 2-855-1.1-c1-0-9
Degree $2$
Conductor $855$
Sign $1$
Analytic cond. $6.82720$
Root an. cond. $2.61289$
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  + 0.311·2-s − 1.90·4-s + 5-s + 2.21·7-s − 1.21·8-s + 0.311·10-s + 1.31·11-s − 1.59·13-s + 0.688·14-s + 3.42·16-s + 0.474·17-s − 19-s − 1.90·20-s + 0.407·22-s + 7.33·23-s + 25-s − 0.495·26-s − 4.21·28-s + 0.260·29-s + 3.95·31-s + 3.49·32-s + 0.147·34-s + 2.21·35-s + 0.541·37-s − 0.311·38-s − 1.21·40-s + 12.1·41-s + ⋯
L(s)  = 1  + 0.219·2-s − 0.951·4-s + 0.447·5-s + 0.836·7-s − 0.429·8-s + 0.0983·10-s + 0.395·11-s − 0.441·13-s + 0.184·14-s + 0.857·16-s + 0.115·17-s − 0.229·19-s − 0.425·20-s + 0.0869·22-s + 1.52·23-s + 0.200·25-s − 0.0971·26-s − 0.796·28-s + 0.0483·29-s + 0.710·31-s + 0.617·32-s + 0.0253·34-s + 0.374·35-s + 0.0889·37-s − 0.0504·38-s − 0.192·40-s + 1.90·41-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 855 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 855 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(855\)    =    \(3^{2} \cdot 5 \cdot 19\)
Sign: $1$
Analytic conductor: \(6.82720\)
Root analytic conductor: \(2.61289\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 855,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(1.671092845\)
\(L(\frac12)\) \(\approx\) \(1.671092845\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad3 \( 1 \)
5 \( 1 - T \)
19 \( 1 + T \)
good2 \( 1 - 0.311T + 2T^{2} \)
7 \( 1 - 2.21T + 7T^{2} \)
11 \( 1 - 1.31T + 11T^{2} \)
13 \( 1 + 1.59T + 13T^{2} \)
17 \( 1 - 0.474T + 17T^{2} \)
23 \( 1 - 7.33T + 23T^{2} \)
29 \( 1 - 0.260T + 29T^{2} \)
31 \( 1 - 3.95T + 31T^{2} \)
37 \( 1 - 0.541T + 37T^{2} \)
41 \( 1 - 12.1T + 41T^{2} \)
43 \( 1 + 6.02T + 43T^{2} \)
47 \( 1 - 4.28T + 47T^{2} \)
53 \( 1 - 7.52T + 53T^{2} \)
59 \( 1 - 7.93T + 59T^{2} \)
61 \( 1 + 2.76T + 61T^{2} \)
67 \( 1 - 5.18T + 67T^{2} \)
71 \( 1 - 9.47T + 71T^{2} \)
73 \( 1 + 5.67T + 73T^{2} \)
79 \( 1 + 3.86T + 79T^{2} \)
83 \( 1 + 7.33T + 83T^{2} \)
89 \( 1 - 2.68T + 89T^{2} \)
97 \( 1 - 15.8T + 97T^{2} \)
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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

−10.07124874704099339965916422019, −9.272451787603922712965778559765, −8.623142046448662802779387020131, −7.74655219938714719654150948772, −6.67045817635063358960195872604, −5.53903109360479029487685492327, −4.86826853667779457999406165054, −4.00369461453057707547905721915, −2.66414935165163845255731296671, −1.10190631297976832572592823709, 1.10190631297976832572592823709, 2.66414935165163845255731296671, 4.00369461453057707547905721915, 4.86826853667779457999406165054, 5.53903109360479029487685492327, 6.67045817635063358960195872604, 7.74655219938714719654150948772, 8.623142046448662802779387020131, 9.272451787603922712965778559765, 10.07124874704099339965916422019

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