Properties

Label 2-990-1.1-c1-0-7
Degree $2$
Conductor $990$
Sign $1$
Analytic cond. $7.90518$
Root an. cond. $2.81161$
Motivic weight $1$
Arithmetic yes
Rational yes
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 2-s + 4-s + 5-s + 8-s + 10-s − 11-s + 2·13-s + 16-s + 2·17-s + 8·19-s + 20-s − 22-s − 4·23-s + 25-s + 2·26-s − 2·29-s + 8·31-s + 32-s + 2·34-s − 2·37-s + 8·38-s + 40-s − 6·41-s + 8·43-s − 44-s − 4·46-s + 4·47-s + ⋯
L(s)  = 1  + 0.707·2-s + 1/2·4-s + 0.447·5-s + 0.353·8-s + 0.316·10-s − 0.301·11-s + 0.554·13-s + 1/4·16-s + 0.485·17-s + 1.83·19-s + 0.223·20-s − 0.213·22-s − 0.834·23-s + 1/5·25-s + 0.392·26-s − 0.371·29-s + 1.43·31-s + 0.176·32-s + 0.342·34-s − 0.328·37-s + 1.29·38-s + 0.158·40-s − 0.937·41-s + 1.21·43-s − 0.150·44-s − 0.589·46-s + 0.583·47-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 990 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 990 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(990\)    =    \(2 \cdot 3^{2} \cdot 5 \cdot 11\)
Sign: $1$
Analytic conductor: \(7.90518\)
Root analytic conductor: \(2.81161\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 990,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(2.793052956\)
\(L(\frac12)\) \(\approx\) \(2.793052956\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 - T \)
3 \( 1 \)
5 \( 1 - T \)
11 \( 1 + T \)
good7 \( 1 + p T^{2} \)
13 \( 1 - 2 T + p T^{2} \)
17 \( 1 - 2 T + p T^{2} \)
19 \( 1 - 8 T + p T^{2} \)
23 \( 1 + 4 T + p T^{2} \)
29 \( 1 + 2 T + p T^{2} \)
31 \( 1 - 8 T + p T^{2} \)
37 \( 1 + 2 T + p T^{2} \)
41 \( 1 + 6 T + p T^{2} \)
43 \( 1 - 8 T + p T^{2} \)
47 \( 1 - 4 T + p T^{2} \)
53 \( 1 + 2 T + p T^{2} \)
59 \( 1 + 4 T + p T^{2} \)
61 \( 1 + 6 T + p T^{2} \)
67 \( 1 + 12 T + p T^{2} \)
71 \( 1 - 12 T + p T^{2} \)
73 \( 1 - 2 T + p T^{2} \)
79 \( 1 + p T^{2} \)
83 \( 1 + 4 T + p T^{2} \)
89 \( 1 - 6 T + p T^{2} \)
97 \( 1 + 14 T + p T^{2} \)
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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

−10.04005729684025589920837492028, −9.320715839340683774661507050378, −8.145914445140422560558086809244, −7.42915492399457791026016616809, −6.36062597601729567707034918033, −5.63902222814118228132870695546, −4.83318849190237929422060153274, −3.64982117311005000207662650100, −2.74212216031092786291276097908, −1.35568641827293212965393981435, 1.35568641827293212965393981435, 2.74212216031092786291276097908, 3.64982117311005000207662650100, 4.83318849190237929422060153274, 5.63902222814118228132870695546, 6.36062597601729567707034918033, 7.42915492399457791026016616809, 8.145914445140422560558086809244, 9.320715839340683774661507050378, 10.04005729684025589920837492028

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