Properties

Label 2-855-1.1-c1-0-3
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  − 1.95·2-s + 1.82·4-s + 5-s − 3.56·7-s + 0.340·8-s − 1.95·10-s − 5.56·11-s + 5.26·13-s + 6.96·14-s − 4.31·16-s − 1.40·17-s + 19-s + 1.82·20-s + 10.8·22-s + 6.96·23-s + 25-s − 10.3·26-s − 6.50·28-s − 1.40·29-s + 1.75·31-s + 7.76·32-s + 2.75·34-s − 3.56·35-s + 3.61·37-s − 1.95·38-s + 0.340·40-s − 4.34·41-s + ⋯
L(s)  = 1  − 1.38·2-s + 0.912·4-s + 0.447·5-s − 1.34·7-s + 0.120·8-s − 0.618·10-s − 1.67·11-s + 1.46·13-s + 1.86·14-s − 1.07·16-s − 0.341·17-s + 0.229·19-s + 0.408·20-s + 2.31·22-s + 1.45·23-s + 0.200·25-s − 2.02·26-s − 1.22·28-s − 0.261·29-s + 0.315·31-s + 1.37·32-s + 0.471·34-s − 0.602·35-s + 0.594·37-s − 0.317·38-s + 0.0539·40-s − 0.679·41-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

\(L(1)\) \(\approx\) \(0.6031018279\)
\(L(\frac12)\) \(\approx\) \(0.6031018279\)
\(L(\frac{3}{2})\) 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 \( 1 + 1.95T + 2T^{2} \)
7 \( 1 + 3.56T + 7T^{2} \)
11 \( 1 + 5.56T + 11T^{2} \)
13 \( 1 - 5.26T + 13T^{2} \)
17 \( 1 + 1.40T + 17T^{2} \)
23 \( 1 - 6.96T + 23T^{2} \)
29 \( 1 + 1.40T + 29T^{2} \)
31 \( 1 - 1.75T + 31T^{2} \)
37 \( 1 - 3.61T + 37T^{2} \)
41 \( 1 + 4.34T + 41T^{2} \)
43 \( 1 + 3.56T + 43T^{2} \)
47 \( 1 - 8.26T + 47T^{2} \)
53 \( 1 - 7.61T + 53T^{2} \)
59 \( 1 + 9.47T + 59T^{2} \)
61 \( 1 - 9.21T + 61T^{2} \)
67 \( 1 + 4.76T + 67T^{2} \)
71 \( 1 - 14.0T + 71T^{2} \)
73 \( 1 - 6.59T + 73T^{2} \)
79 \( 1 - 5.47T + 79T^{2} \)
83 \( 1 - 4.15T + 83T^{2} \)
89 \( 1 - 9.23T + 89T^{2} \)
97 \( 1 - 11.5T + 97T^{2} \)
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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

−10.15033171056742891138433483499, −9.267561546844698726660910101551, −8.716238895055914956669405812424, −7.81450863242715631822709248237, −6.90987868690790929687096743717, −6.11118087356776791733753571403, −5.01897693061581487824495416711, −3.43143893903231896065012408166, −2.36458969233167643172870884214, −0.75670321910440066947189776463, 0.75670321910440066947189776463, 2.36458969233167643172870884214, 3.43143893903231896065012408166, 5.01897693061581487824495416711, 6.11118087356776791733753571403, 6.90987868690790929687096743717, 7.81450863242715631822709248237, 8.716238895055914956669405812424, 9.267561546844698726660910101551, 10.15033171056742891138433483499

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