Properties

Label 2-2480-1.1-c1-0-31
Degree $2$
Conductor $2480$
Sign $-1$
Analytic cond. $19.8028$
Root an. cond. $4.45004$
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  − 2·3-s − 5-s + 9-s − 2·11-s + 2·15-s + 2·17-s + 4·19-s + 4·23-s + 25-s + 4·27-s − 4·29-s + 31-s + 4·33-s − 8·37-s + 6·41-s − 2·43-s − 45-s − 7·49-s − 4·51-s + 8·53-s + 2·55-s − 8·57-s − 8·59-s − 4·67-s − 8·69-s + 6·73-s − 2·75-s + ⋯
L(s)  = 1  − 1.15·3-s − 0.447·5-s + 1/3·9-s − 0.603·11-s + 0.516·15-s + 0.485·17-s + 0.917·19-s + 0.834·23-s + 1/5·25-s + 0.769·27-s − 0.742·29-s + 0.179·31-s + 0.696·33-s − 1.31·37-s + 0.937·41-s − 0.304·43-s − 0.149·45-s − 49-s − 0.560·51-s + 1.09·53-s + 0.269·55-s − 1.05·57-s − 1.04·59-s − 0.488·67-s − 0.963·69-s + 0.702·73-s − 0.230·75-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 2480 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & -\, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 2480 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & -\, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(2480\)    =    \(2^{4} \cdot 5 \cdot 31\)
Sign: $-1$
Analytic conductor: \(19.8028\)
Root analytic conductor: \(4.45004\)
Motivic weight: \(1\)
Rational: yes
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(1\)
Selberg data: \((2,\ 2480,\ (\ :1/2),\ -1)\)

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 \( 1 \)
5 \( 1 + T \)
31 \( 1 - T \)
good3 \( 1 + 2 T + p T^{2} \)
7 \( 1 + p T^{2} \)
11 \( 1 + 2 T + p T^{2} \)
13 \( 1 + p T^{2} \)
17 \( 1 - 2 T + p T^{2} \)
19 \( 1 - 4 T + p T^{2} \)
23 \( 1 - 4 T + p T^{2} \)
29 \( 1 + 4 T + p T^{2} \)
37 \( 1 + 8 T + p T^{2} \)
41 \( 1 - 6 T + p T^{2} \)
43 \( 1 + 2 T + p T^{2} \)
47 \( 1 + p T^{2} \)
53 \( 1 - 8 T + p T^{2} \)
59 \( 1 + 8 T + p T^{2} \)
61 \( 1 + p T^{2} \)
67 \( 1 + 4 T + p T^{2} \)
71 \( 1 + p T^{2} \)
73 \( 1 - 6 T + p T^{2} \)
79 \( 1 - 4 T + p T^{2} \)
83 \( 1 + 6 T + p T^{2} \)
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

−8.492991502396247670022058615050, −7.62719225217277156404644359290, −7.01969100272950224003714185366, −6.10742676075883314085892542646, −5.33072080167810451628709907496, −4.87810182943580631405319775503, −3.69683871468629610845615643427, −2.77418319730261383273863638001, −1.22167689552642552772774605158, 0, 1.22167689552642552772774605158, 2.77418319730261383273863638001, 3.69683871468629610845615643427, 4.87810182943580631405319775503, 5.33072080167810451628709907496, 6.10742676075883314085892542646, 7.01969100272950224003714185366, 7.62719225217277156404644359290, 8.492991502396247670022058615050

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