Properties

Label 2-1989-1.1-c1-0-18
Degree $2$
Conductor $1989$
Sign $1$
Analytic cond. $15.8822$
Root an. cond. $3.98525$
Motivic weight $1$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

Related objects

Downloads

Learn more

Normalization:  

Dirichlet series

L(s)  = 1  + 2-s − 4-s − 2·7-s − 3·8-s + 2·11-s − 13-s − 2·14-s − 16-s − 17-s + 2·22-s + 8·23-s − 5·25-s − 26-s + 2·28-s + 6·29-s + 6·31-s + 5·32-s − 34-s + 4·37-s + 12·41-s − 4·43-s − 2·44-s + 8·46-s − 3·49-s − 5·50-s + 52-s + 6·53-s + ⋯
L(s)  = 1  + 0.707·2-s − 1/2·4-s − 0.755·7-s − 1.06·8-s + 0.603·11-s − 0.277·13-s − 0.534·14-s − 1/4·16-s − 0.242·17-s + 0.426·22-s + 1.66·23-s − 25-s − 0.196·26-s + 0.377·28-s + 1.11·29-s + 1.07·31-s + 0.883·32-s − 0.171·34-s + 0.657·37-s + 1.87·41-s − 0.609·43-s − 0.301·44-s + 1.17·46-s − 3/7·49-s − 0.707·50-s + 0.138·52-s + 0.824·53-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1989 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1989 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1989\)    =    \(3^{2} \cdot 13 \cdot 17\)
Sign: $1$
Analytic conductor: \(15.8822\)
Root analytic conductor: \(3.98525\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 1989,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(1.782040728\)
\(L(\frac12)\) \(\approx\) \(1.782040728\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad3 \( 1 \)
13 \( 1 + T \)
17 \( 1 + T \)
good2 \( 1 - T + p T^{2} \)
5 \( 1 + p T^{2} \)
7 \( 1 + 2 T + p T^{2} \)
11 \( 1 - 2 T + p T^{2} \)
19 \( 1 + p T^{2} \)
23 \( 1 - 8 T + p T^{2} \)
29 \( 1 - 6 T + p T^{2} \)
31 \( 1 - 6 T + p T^{2} \)
37 \( 1 - 4 T + p T^{2} \)
41 \( 1 - 12 T + p T^{2} \)
43 \( 1 + 4 T + p T^{2} \)
47 \( 1 + p T^{2} \)
53 \( 1 - 6 T + p T^{2} \)
59 \( 1 + p T^{2} \)
61 \( 1 + 2 T + p T^{2} \)
67 \( 1 + p T^{2} \)
71 \( 1 + 10 T + p T^{2} \)
73 \( 1 + 4 T + p T^{2} \)
79 \( 1 - 12 T + p T^{2} \)
83 \( 1 - 4 T + p T^{2} \)
89 \( 1 - 10 T + p T^{2} \)
97 \( 1 - 16 T + p T^{2} \)
show more
show less
   \(L(s) = \displaystyle\prod_p \ \prod_{j=1}^{2} (1 - \alpha_{j,p}\, p^{-s})^{-1}\)

Imaginary part of the first few zeros on the critical line

−9.237634125983734665777444796591, −8.537674584116014643936461500198, −7.51652736314682879781148688875, −6.50892217077812457053338872148, −6.03783813983787978598423027694, −4.96254609148734960386106795551, −4.32046537490554466136211195238, −3.39280348926993285239486452160, −2.60550172422162141545165279017, −0.805347437926139300568670470568, 0.805347437926139300568670470568, 2.60550172422162141545165279017, 3.39280348926993285239486452160, 4.32046537490554466136211195238, 4.96254609148734960386106795551, 6.03783813983787978598423027694, 6.50892217077812457053338872148, 7.51652736314682879781148688875, 8.537674584116014643936461500198, 9.237634125983734665777444796591

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