Properties

Label 2-1984-1.1-c1-0-50
Degree $2$
Conductor $1984$
Sign $-1$
Analytic cond. $15.8423$
Root an. cond. $3.98024$
Motivic weight $1$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $1$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 2·5-s − 3·9-s − 2·13-s − 6·17-s + 4·19-s − 8·23-s − 25-s − 2·29-s + 31-s − 10·37-s − 6·41-s + 8·43-s − 6·45-s + 8·47-s − 7·49-s + 6·53-s − 12·59-s + 6·61-s − 4·65-s − 12·67-s − 8·71-s + 10·73-s + 8·79-s + 9·81-s + 8·83-s − 12·85-s − 6·89-s + ⋯
L(s)  = 1  + 0.894·5-s − 9-s − 0.554·13-s − 1.45·17-s + 0.917·19-s − 1.66·23-s − 1/5·25-s − 0.371·29-s + 0.179·31-s − 1.64·37-s − 0.937·41-s + 1.21·43-s − 0.894·45-s + 1.16·47-s − 49-s + 0.824·53-s − 1.56·59-s + 0.768·61-s − 0.496·65-s − 1.46·67-s − 0.949·71-s + 1.17·73-s + 0.900·79-s + 81-s + 0.878·83-s − 1.30·85-s − 0.635·89-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 1984 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 1984 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & -\, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(1984\)    =    \(2^{6} \cdot 31\)
Sign: $-1$
Analytic conductor: \(15.8423\)
Root analytic conductor: \(3.98024\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(1\)
Selberg data: \((2,\ 1984,\ (\ :1/2),\ -1)\)

Particular Values

\(L(1)\) \(=\) \(0\)
\(L(\frac12)\) \(=\) \(0\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
31 \( 1 - T \)
good3 \( 1 + p T^{2} \)
5 \( 1 - 2 T + p T^{2} \)
7 \( 1 + p T^{2} \)
11 \( 1 + p T^{2} \)
13 \( 1 + 2 T + p T^{2} \)
17 \( 1 + 6 T + p T^{2} \)
19 \( 1 - 4 T + p T^{2} \)
23 \( 1 + 8 T + p T^{2} \)
29 \( 1 + 2 T + p T^{2} \)
37 \( 1 + 10 T + p T^{2} \)
41 \( 1 + 6 T + p T^{2} \)
43 \( 1 - 8 T + p T^{2} \)
47 \( 1 - 8 T + p T^{2} \)
53 \( 1 - 6 T + p T^{2} \)
59 \( 1 + 12 T + p T^{2} \)
61 \( 1 - 6 T + p T^{2} \)
67 \( 1 + 12 T + p T^{2} \)
71 \( 1 + 8 T + p T^{2} \)
73 \( 1 - 10 T + p T^{2} \)
79 \( 1 - 8 T + p T^{2} \)
83 \( 1 - 8 T + p T^{2} \)
89 \( 1 + 6 T + p T^{2} \)
97 \( 1 - 2 T + p T^{2} \)
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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

−8.911717137174663405595486729622, −8.067419021434777137162075637049, −7.17663415905550465853772545662, −6.23927644667191941192015479418, −5.67007372238293440407484071620, −4.85213555842603099342069383801, −3.73552653057987685997850390510, −2.58717477143022626568369362485, −1.85194090492113304245340785765, 0, 1.85194090492113304245340785765, 2.58717477143022626568369362485, 3.73552653057987685997850390510, 4.85213555842603099342069383801, 5.67007372238293440407484071620, 6.23927644667191941192015479418, 7.17663415905550465853772545662, 8.067419021434777137162075637049, 8.911717137174663405595486729622

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